[{"content":"","date":null,"permalink":"https://drakkar.imag.fr/partnerships/events/","section":"Partnerships \u0026 events","summary":"","title":"Events"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/","section":"Join us","summary":"","title":"Open positions"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/","section":"Members","summary":"","title":"Faculty members"},{"content":" Contact.\nProfessor at Ensimag.\nTel : +33 4 57 42 15 09\nOffice 419, IMAG building\nGoogle scholar citation page\n","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/martin-heusse/","section":"Members","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/join/contact/\"\u003eContact\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eProfessor at \u003ca href=\"http://ensimag.grenoble-inp.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eEnsimag\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eTel : +33 4 57 42 15 09\u003c/p\u003e\n\u003cp\u003eOffice 419, \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/where-to-find-us/\"\u003eIMAG building\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"http://scholar.google.com/citations?user=7l-LHvIAAAAJ\" target=\"_blank\" rel=\"noreferrer\"\u003eGoogle scholar citation page\u003c/a\u003e\u003c/p\u003e","title":"Martin Heusse"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/projects/national/","section":"Projects","summary":"","title":"National"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/projects/","section":"Projects","summary":"","title":"Projects"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/join/internships/","section":"Join us","summary":"","title":"Internships"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/partnerships/partners/","section":"Partnerships \u0026 events","summary":"","title":"Partners \u0026 contracts"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/projects/past/","section":"Projects","summary":"","title":"Past"},{"content":"Professor Martin Heusse\nPostal address\nLIG Lab\nCS 40700\n38058 Grenoble Cedex 9\nFrance\nVisiting address\nLIG Lab\nIMAG Building\n150 place du Torrent\nSaint-Martin-d\u0026rsquo;Hères\nFrance\nEmail\nMartin.Heusse@imag.fr\nWeb\nhttps://drakkar.imag.fr/\n","date":null,"permalink":"https://drakkar.imag.fr/join/contact/","section":"Join us","summary":"\u003cp\u003eProfessor \n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/martin-heusse/\"\u003eMartin Heusse\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003ePostal address\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eLIG Lab\u003cbr\u003e\nCS 40700\u003cbr\u003e\n38058 Grenoble Cedex 9\u003cbr\u003e\nFrance\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eVisiting address\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eLIG Lab\u003cbr\u003e\nIMAG Building\u003cbr\u003e\n150 place du Torrent\u003cbr\u003e\nSaint-Martin-d\u0026rsquo;Hères\u003cbr\u003e\nFrance\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"mailto:Martin.Heusse@imag.fr\"\u003eMartin.Heusse@imag.fr\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeb\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://drakkar.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003ehttps://drakkar.imag.fr/\u003c/a\u003e\u003c/p\u003e","title":"Contact"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/news/","section":"News","summary":"","title":"News"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/partnerships/","section":"Partnerships \u0026 events","summary":"","title":"Partnerships \u0026 events"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/join/","section":"Join us","summary":"","title":"Join us"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/","section":"Members","summary":"","title":"PhD students"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/engineers/","section":"Members","summary":"","title":"Engineers"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/","section":"Members","summary":"","title":"Collaborations"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/publications/","section":"Publications","summary":"","title":"Publications"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/post-doc/","section":"Members","summary":"","title":"Post-docs"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/","section":"Members","summary":"","title":"Alumni"},{"content":"ANR fact sheet\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/anr-prc-moral/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://anr.fr/en/funded-projects-and-impact/funded-projects/project/funded/project/b2d9d3668f92a3b9fbbf7866072501ef-511374d555/?tx_anrprojects_funded%5Bcontroller%5D=Funded\u0026amp;cHash=8628ba5abfd6ade8e7fc505d92ca07be\" target=\"_blank\" rel=\"noreferrer\"\u003eANR fact sheet\u003c/a\u003e\u003c/p\u003e","title":"ANR MORAL – 2027–2030"},{"content":"11th get-together of the friendly Operating System for the Internet of Things\n","date":"1 September 2026","permalink":"https://drakkar.imag.fr/news/riot-summit/","section":"News","summary":"\u003cp\u003e11th get-together of the friendly Operating System for the Internet of Things\u003c/p\u003e","title":"RIOT Summit 2026"},{"content":"","date":"1 September 2026","permalink":"https://drakkar.imag.fr/news/ariel-os-day/","section":"News","summary":"","title":"The 1st Ariel OS Community Day (1AD)"},{"content":"FeniX : un nœud d\u0026rsquo;expérimentation modulaire pour l\u0026rsquo;IoT\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/carnot-lsi-fenix/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://ecole26slicesfr.sciencesconf.org/746246\" target=\"_blank\" rel=\"noreferrer\"\u003eFeniX : un nœud d\u0026rsquo;expérimentation modulaire pour l\u0026rsquo;IoT\u003c/a\u003e\u003c/p\u003e","title":"Carnot LSI FeniX – 2026"},{"content":"The 2026 GDR RSD general meeting will be held in Grenoble in March 2026. Further details to follow.\n","date":null,"permalink":"https://drakkar.imag.fr/partnerships/events/gdr-rsd-2026/","section":"Partnerships \u0026 events","summary":"\u003cp\u003eThe \u003ca href=\"https://gdrrsd2026.imag.fr\" target=\"_blank\" rel=\"noreferrer\"\u003e2026 GDR RSD general meeting\u003c/a\u003e will be held in\nGrenoble in March 2026. Further details to follow.\u003c/p\u003e","title":"GDR RSD — 2026 general meeting"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/","section":"Members","summary":"","title":"Members"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/om-essaad-slama/","section":"Members","summary":"","title":"Om Essaad Slama"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/soumaya-chaouch/","section":"Members","summary":"","title":"Soumaya Chaouch"},{"content":" Supervisors: Simon Fernandez, Franck Rousseau Host group: LIG — Drakkar team Location: IMAG building, Grenoble Duration: 3 to 6 months Contact: simon.fernandez@grenoble-inp.fr Topics: networks, web, performance, research Context #During a TCP+TLS connection, the server must supply a certificate chain so that the client can authenticate it. That chain can be long and complex, and transferring all the necessary x509 certificates costs packet round trips at connection time. For mail servers, an alternative is seeing growing use: DANE. Built on DNS and authenticated by DNSSEC, DANE binds TLS certificates to services on domain names. The DNS infrastructure delivers that data to clients efficiently and keeps certificates cached for later reuse.\nThe work #The successful candidate will join the Drakkar research team at the Laboratoire d\u0026rsquo;Informatique de Grenoble. The work is a performance comparison of the two ways of delivering certificate chains: the classic x509 certificates transferred during the TCP connection, and DANE+DNSSEC retrieved from the DNS. The comparison will center on the size of the packets exchanged, resolution time, and the ability to revoke certificates.\nIt will rest on extensive Internet measurement to collect the data needed for the comparison, together with analysis of DNS traffic and TLS certificates.\nReading the scientific literature on the subject will be necessary at the start of the internship in order to understand what is at stake. The analysis will need the scientific rigor required for its results to be reproducible.\nSkills involved # Software development (Python or another language) Network protocols (TCP, TLS, DNS) Analysis of large volumes of data Working with unfamiliar data formats ","date":null,"permalink":"https://drakkar.imag.fr/join/internships/stage-2026-pki-vs-dane-analyse-de-performance-de-protocoles-web/","section":"Join us","summary":"\u003cul\u003e\n\u003cli\u003eSupervisors: Simon Fernandez, Franck Rousseau\u003c/li\u003e\n\u003cli\u003eHost group: LIG — Drakkar team\u003c/li\u003e\n\u003cli\u003eLocation: IMAG building, Grenoble\u003c/li\u003e\n\u003cli\u003eDuration: 3 to 6 months\u003c/li\u003e\n\u003cli\u003eContact: \u003ca href=\"mailto:simon.fernandez@grenoble-inp.fr\"\u003esimon.fernandez@grenoble-inp.fr\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003eTopics: networks, web, performance, research\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3 id=\"context\" class=\"relative group\"\u003eContext \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#context\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eDuring a TCP+TLS connection, the server must supply a certificate chain so that\nthe client can authenticate it. That chain can be long and complex, and\ntransferring all the necessary x509 certificates costs packet round trips at\nconnection time. For mail servers, an alternative is seeing growing use: DANE.\nBuilt on DNS and authenticated by DNSSEC, DANE binds TLS certificates to services\non domain names. The DNS infrastructure delivers that data to clients efficiently\nand keeps certificates cached for later reuse.\u003c/p\u003e","title":"Internship 2026 — PKI vs DANE: performance analysis of web protocols"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/pierre-marie-lechevalier/","section":"Members","summary":"","title":"Pierre-Marie Lechevalier"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/sacha-faure/","section":"Members","summary":"","title":"Sacha Faure"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/marc-sanchez/","section":"Members","summary":"","title":"Marc Sanchez"},{"content":"The 2026 GDR RSD general meeting will be held in Grenoble in March 2026. Further details to follow.\nSee the event page.\n","date":"3 July 2025","permalink":"https://drakkar.imag.fr/news/gdr-rsd-journees-non-thematiques-2026/","section":"News","summary":"\u003cp\u003eThe \u003ca href=\"https://gdrrsd2026.imag.fr\" target=\"_blank\" rel=\"noreferrer\"\u003e2026 GDR RSD general meeting\u003c/a\u003e will be held in\nGrenoble in March 2026. Further details to follow.\u003c/p\u003e\n\u003cp\u003eSee the \n      \n    \u003ca href=\"https://drakkar.imag.fr/partnerships/events/gdr-rsd-2026/\"\u003eevent page\u003c/a\u003e.\u003c/p\u003e","title":"GDR RSD — 2026 general meeting"},{"content":"Position: Ph.D. student\nLocation: Grenoble, France Hosting university: Université Grenoble Alpes Hosting laboratory: Laboratoire d’Informatique de Grenoble (LIG), DRAKKAR team Contract: fixed-term three years Supervision: Martin Heusse Application deadline: ASAP Duration: 3 years Start date: ASAP Context\nThe DONUTS project introduces several breakthrough approaches to the design, management, and optimization of Space-Air-Ground integrated networks. It addresses seamless integration, resource management across heterogeneous technologies and scales, adaptive control under changing network conditions, and the use of a digital twin to model and forecast network infrastructure.\nIn this PhD, the objective is to explore the potential of direct data transmission in cellular networks, instead of following the standard multi-step procedure.\nInspired by recent breakthroughs in LPWANs, the challenge is to evaluate the possibility of transmitting data directly in the slotted Aloha channel, by alleviating quasi-orthogonal codes and adjusting the transmission robustness to the channel conditions.\nYour profile\nMaster\u0026rsquo;s degree or equivalent in IT/CS/Telecom or a related field Excellent programming and scripting (Python, Bash, other languages are a plus) Proficiency in Debian/Ubuntu or other Unix-like operating systems Good knowledge of TCP/IP networking Some knowledge of radio networks (4G, 5G, WLAN, LPWAN) Excellent written and spoken English Research experience is a plus Industry experience is a plus What we offer\nA research team with a strong background in computer networking and radio. Cutting-edge research topics. Our past projects include domain name classification, measurements of the deployment of source address validation, DNS interception, and zone poisoning, among others. Publications at top conferences (e.g., Internet Measurement Conference, IEEE European Symposium on Security and Privacy, Network and Distributed System Security Symposium). Close supervision. An international team. LIG laboratory is located in Grenoble, the capital of the Alps. It is a major French scientific and industrial center for computer science and applied mathematics. The city lies amidst three mountain ranges and offers an exceptional quality of life, with efficient public transportation and dedicated bikeways.\nHow to apply\nApplicants should send a detailed CV along with a motivation letter, your most recent degree certificate, transcripts of undergraduate and graduate studies to Martin.Heusse@imag.fr. Email subject must start with \u0026ldquo;[Ph.D. Application: Direct access]\u0026rdquo;. References or letters of recommendation are appreciated. We will assess applications as they come in until the position is filled.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/phd-position-on-random-access-strategies-for-iot-traffic/","section":"Join us","summary":"\u003cp\u003ePosition: Ph.D. student\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocation: Grenoble, France\u003c/li\u003e\n\u003cli\u003eHosting university: Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eHosting laboratory: Laboratoire d’Informatique de Grenoble (LIG), DRAKKAR team\u003c/li\u003e\n\u003cli\u003eContract: fixed-term three years\u003c/li\u003e\n\u003cli\u003eSupervision: Martin Heusse\u003c/li\u003e\n\u003cli\u003eApplication deadline: ASAP\u003c/li\u003e\n\u003cli\u003eDuration: 3 years\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContext\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe \u003ca href=\"https://pepr-futurenetworks.fr/projet/donuts/\" target=\"_blank\" rel=\"noreferrer\"\u003eDONUTS\u003c/a\u003e project introduces several breakthrough approaches to the design, management, and optimization of Space-Air-Ground integrated networks. It addresses seamless integration, resource management across heterogeneous technologies and scales, adaptive control under changing network conditions, and the use of a digital twin to model and forecast network infrastructure.\u003c/p\u003e","title":"PhD position on Random Access strategies for IoT traffic"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/carlos-manriquez/","section":"Members","summary":"","title":"Carlos Manriquez"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/vincent-danjean/","section":"Members","summary":"","title":"Vincent Danjean"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/youssef-abyaa/","section":"Members","summary":"","title":"Youssef Abyaa"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/engineers/charlelie-pignol/","section":"Members","summary":"","title":"Charlélie Pignol"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/engineers/jeremie-finiel/","section":"Members","summary":"","title":"Jérémie Finiel"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/engineers/leo-cordier/","section":"Members","summary":"","title":"Léo Cordier"},{"content":"Réalisation d\u0026rsquo;un noeud d\u0026rsquo;expérimentation IoT configurable\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/carnot-lsi-waltor/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://ecole25slicesfr.sciencesconf.org/643127\" target=\"_blank\" rel=\"noreferrer\"\u003eRéalisation d\u0026rsquo;un noeud d\u0026rsquo;expérimentation IoT configurable\u003c/a\u003e\u003c/p\u003e","title":"Carnot LSI WalToR – 2025"},{"content":"PEPR fact sheet\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/pepr-5g-donuts/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://pepr-futurenetworks.fr/en/projet/2855-2/\" target=\"_blank\" rel=\"noreferrer\"\u003ePEPR fact sheet\u003c/a\u003e\u003c/p\u003e","title":"PEPR 5G DONUTS – 2025–2030"},{"content":"DNS, Gateway to a more secured Internet #The defence will take place on Tuesday 19 December 2024 at 14:00 at the Maison du doctorat Jean Kuntzmann, 110 rue de la Chimie, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #As the Internet has grown, so have its security challenges. This thesis examines how the Domain Name System (DNS), as a trusted infrastructure, can strengthen Internet security. It focuses on two protocols: DMARC, which addresses the lack of protection against sender-address spoofing in email, and RDAP, which provides secure, standardized access to domain name registration data.\nThe work analyzes these challenges in detail, proposes ways to improve adoption and correct deployment of both protocols, and presents DNS as a gateway to a more secure Internet.\n","date":"6 December 2024","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-olivier-hureau-19-decembre/","section":"News","summary":"\u003ch3 id=\"dns-gateway-to-a-more-secured-internet\" class=\"relative group\"\u003eDNS, Gateway to a more secured Internet \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#dns-gateway-to-a-more-secured-internet\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on Tuesday \u003cstrong\u003e19 December 2024 at 14:00\u003c/strong\u003e at the\nMaison du doctorat Jean Kuntzmann, 110 rue de la Chimie, Domaine universitaire,\n38400 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eAs the Internet has grown, so have its security challenges. This thesis examines\nhow the Domain Name System (DNS), as a trusted infrastructure, can strengthen\nInternet security. It focuses on two protocols: DMARC, which addresses the lack\nof protection against sender-address spoofing in email, and RDAP, which provides\nsecure, standardized access to domain name registration data.\u003c/p\u003e","title":"Thesis defense — Olivier Hureau — December 19th"},{"content":"Measuring, Analysing and Mitigating Malicious Activities on the Internet: A Study on DNS, Open Proxies and Domain Name Defensive Registrations #Will take place on the 1st of October 2024 at 9:00 am at the main Auditorium in the IMAG building.\nAbstract #The landscape of cybersecurity is constantly evolving as new and complex threats emerge. To address the challenges posed by these threats, we perform a series of measurements, analyze the results, and recommend strategies to mitigate malicious activities on the Internet more, with a particular focus on the Domain Name System (DNS) and open proxies.\nThis doctoral thesis embarks on a comprehensive exploration of domain name abuse and open proxy abuses. This thesis makes three main contributions, which can be summarized in three stages.\nThe first contribution of this thesis is to mitigate the threat posed by cybersquatters by incorporating Passive DNS (Domain Name System) data into defensive domain name registration practices. It presents a thorough analysis of the benefits of this approach and its potential applications in protecting brands. It examines the current defensive registration practices employed by defensive registrars and highlights their shortcomings. As a contribution, it proposes a new method to improve the defensive registration strategies used by defensive registrars.\nThe Second contribution of this thesis addresses the need for a practical and operational domain name classifier to distinguish between maliciously registered and compromised domains used in phishing that can be readily employed by intermediaries in real-world scenarios to design domain name classifiers that overcome the shortcomings of some existing systems. Our approach takes advantage of publicly available domain name registration data. Our approach has two primary contributions that enhance its practical utility in diverse operational contexts. Firstly, it employs an automated methodology for constructing the ground truth dataset, thereby ensuring that the classifier is trained on reliable data. Secondly, it exhibits resilience in the face of missing data values, a common challenge when dealing with public resources and active measurements. This quality further enhances the reliability and practicality of the classifier.\nIn the third contribution, we investigate the activities of open proxies where we provided answers as to why Internet users are still using open proxy services despite the risks involved and what types of cybercrime activities are performed through the use of open proxies. We deploy several open proxy servers distributed all around the world which we configured to accept connections using five popular protocols: HTTP, HTTPS, SOCKS4, SOCKS4(a), and SOCKS5. We also uncover the types of Internet service vulnerabilities that open proxy users exploit. The collective contribution of this thesis is to enhance our understanding of domain name abuses and the misuse of open proxies. This research yields innovative methods and techniques that have the potential to assist internet service providers in improving the safety and dependability of the worldwide Internet environment. The study is invaluable for furnishing Internet service providers with ways to counter domain name abuse and maintain the Internet’s integrity.\n","date":"29 November 2024","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-ben-c-benjamin-1er-octobre/","section":"News","summary":"\u003ch3 id=\"measuring-analysing-and-mitigating-malicious-activities-on-the-internet-a-study-on-dns-open-proxies-and-domain-name-defensive-registrations\" class=\"relative group\"\u003eMeasuring, Analysing and Mitigating Malicious Activities on the Internet: A Study on DNS, Open Proxies and Domain Name Defensive Registrations \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#measuring-analysing-and-mitigating-malicious-activities-on-the-internet-a-study-on-dns-open-proxies-and-domain-name-defensive-registrations\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eWill take place on the \u003cstrong\u003e1st of October 2024 at 9:00 am\u003c/strong\u003e at the main Auditorium in the IMAG building.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe landscape of cybersecurity is constantly evolving as new and complex threats emerge. To address the challenges posed by these threats, we perform a series of measurements, analyze the results, and recommend strategies to mitigate malicious activities on the Internet more, with a particular focus on the Domain Name System (DNS) and open proxies.\u003c/p\u003e","title":"Thesis defense — Ben C. Benjamin — October 1st"},{"content":"The Domain Name System: a Tool and a Target for Internet-Wide Measurements #Will take place on Tuesday, 26 November 2024 at 14:00 at the main Auditorium in the IMAG building.\nAbstract #The Domain Name System (DNS) is one of the oldest Internet protocols to date, with its history dating back to 1987 when it was standardized in its current form. As the Internet was growing at a rapid pace, there was a need for an extensible, interoperable, and distributed naming scheme to replace the plain text file with the address to human-readable name mappings. Despite DNS not considering security aspects at first, it was subsequently amended to provide origin authentication, data integrity, and transaction privacy. It also remains highly flexible to accommodate future protocol extensions. DNS has largely outgrown in original purpose and size, and it is now an extremely complex system with over 460 Requests for Comments (RFCs), 362.4 million registered domain names, and millions of authoritative nameservers and recursive resolvers. It is also one of the most critical components of the Internet, as more and more operations are preceded by a domain name lookup. Such an increasing reliance on DNS makes it an attractive attack target, an efficient attack tool, and a victim of collateral damage. Given its scale, DNS is becoming highly opaque and, therefore, difficult to comprehend and characterize. As a result, one cannot prevent outages, misuse, and misconfigurations if the inner workings of the system are not well understood. This issue raises significant barriers to researchers and operators alike whose aim is to ensure that the Internet remains resilient in the face of numerous threats. On the other hand, one can think of DNS infrastructure as a set of distributed measurement vantage points with a unique view of the underlying networks, in which case, the scale becomes an advantage. With the lack of wide-coverage measurement platforms, DNS servers can be used as measurement nodes themselves. This thesis addresses the following research questions: 1) Can the scope of vulnerabilities in the global DNS be effectively quantified and assessed? and 2) Can DNS be leveraged as a reliable tool for measuring other aspects of the Internet? Four contributions discussed in the remainder of the thesis address the two questions with the help of passive and active measurement techniques. The first contribution analyzes the mechanism of Extended DNS Errors (EDE) and discusses some of the most common misconfigurations of registered domain names observed in the wild. The second contribution investigates the extent to which DNS root server queries suffer from manipulation and proposes several countermeasures to avoid the negative impact on end users. The third contribution uncovers powerful DNS-based mega amplifiers and hypothesizes that the combination of routing loops and middleboxes is behind the phenomenon. The final contribution uses DNS resolvers to infer the absence and the presence of inbound Source Address Validation (SAV) in remote networks.\n","date":"29 November 2024","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-yevheniya-nosyk-26-novembre/","section":"News","summary":"\u003ch3 id=\"the-domain-name-system-a-tool-and-a-target-for-internet-wide-measurements\" class=\"relative group\"\u003eThe Domain Name System: a Tool and a Target for Internet-Wide Measurements \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#the-domain-name-system-a-tool-and-a-target-for-internet-wide-measurements\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eWill take place on \u003cstrong\u003eTuesday, 26 November 2024 at 14:00\u003c/strong\u003e at the main Auditorium in the IMAG building.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe Domain Name System (DNS) is one of the oldest Internet protocols to date, with its history dating back to 1987 when it was standardized in its current form. As the Internet was growing at a rapid pace, there was a need for an extensible, interoperable, and distributed naming scheme to replace the plain text file with the address to human-readable name mappings. Despite DNS not considering security aspects at first, it was subsequently amended to provide origin authentication, data integrity, and transaction privacy. It also remains highly flexible to accommodate future protocol extensions. DNS has largely outgrown in original purpose and size, and it is now an extremely complex system with over 460 Requests for Comments (RFCs), 362.4 million registered domain names, and millions of authoritative nameservers and recursive resolvers. It is also one of the most critical components of the Internet, as more and more operations are preceded by a domain name lookup. Such an increasing reliance on DNS makes it an attractive attack target, an efficient attack tool, and a victim of collateral damage. Given its scale, DNS is becoming highly opaque and, therefore, difficult to comprehend and characterize. As a result, one cannot prevent outages, misuse, and misconfigurations if the inner workings of the system are not well understood. This issue raises significant barriers to researchers and operators alike whose aim is to ensure that the Internet remains resilient in the face of numerous threats. On the other hand, one can think of DNS infrastructure as a set of distributed measurement vantage points with a unique view of the underlying networks, in which case, the scale becomes an advantage. With the lack of wide-coverage measurement platforms, DNS servers can be used as measurement nodes themselves. This thesis addresses the following research questions: 1) Can the scope of vulnerabilities in the global DNS be effectively quantified and assessed? and 2) Can DNS be leveraged as a reliable tool for measuring other aspects of the Internet? Four contributions discussed in the remainder of the thesis address the two questions with the help of passive and active measurement techniques. The first contribution analyzes the mechanism of Extended DNS Errors (EDE) and discusses some of the most common misconfigurations of registered domain names observed in the wild. The second contribution investigates the extent to which DNS root server queries suffer from manipulation and proposes several countermeasures to avoid the negative impact on end users. The third contribution uncovers powerful DNS-based mega amplifiers and hypothesizes that the combination of routing loops and middleboxes is behind the phenomenon. The final contribution uses DNS resolvers to infer the absence and the presence of inbound Source Address Validation (SAV) in remote networks.\u003c/p\u003e","title":"Thesis defense — Yevheniya Nosyk — November 26th"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/augustin-bonnel/","section":"Members","summary":"","title":"Augustin Bonnel"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/marina-gradvohl/","section":"Members","summary":"","title":"Marina Gradvohl"},{"content":"The NTN Days 2024, organized by CNRS GDRs RSD and IASIS, focus on Non-Terrestrial Networks (NTN) communications. This event gathers researchers, industry professionals, and academics to discuss advances and challenges in NTN technologies.\nSee the event page.\n","date":"1 October 2024","permalink":"https://drakkar.imag.fr/news/ntn-days-2024/","section":"News","summary":"\u003cp\u003eThe \u003ca href=\"https://ntndays2024.imag.fr\" target=\"_blank\" rel=\"noreferrer\"\u003eNTN Days 2024\u003c/a\u003e, organized by CNRS GDRs RSD and IASIS, focus on Non-Terrestrial Networks (NTN) communications. This event gathers researchers, industry professionals, and academics to discuss advances and challenges in NTN technologies.\u003c/p\u003e\n\u003cp\u003eSee the \n      \n    \u003ca href=\"https://drakkar.imag.fr/partnerships/events/ntn-days-2024/\"\u003eevent page\u003c/a\u003e.\u003c/p\u003e","title":"NTN Days 2024"},{"content":"The NTN Days 2024, organized by the CNRS GDRs RSD and IASIS, focused on Non-Terrestrial Network (NTN) communications, gathering researchers, industry and academics to discuss advances and open challenges in NTN technologies.\n","date":null,"permalink":"https://drakkar.imag.fr/partnerships/events/ntn-days-2024/","section":"Partnerships \u0026 events","summary":"\u003cp\u003eThe \u003ca href=\"https://ntndays2024.imag.fr\" target=\"_blank\" rel=\"noreferrer\"\u003eNTN Days 2024\u003c/a\u003e, organized by the CNRS GDRs RSD\nand IASIS, focused on Non-Terrestrial Network (NTN) communications, gathering\nresearchers, industry and academics to discuss advances and open challenges in\nNTN technologies.\u003c/p\u003e","title":"NTN Days 2024"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/vivien-quema/","section":"Members","summary":"","title":"Vivien Quéma"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/anas-kastantin/","section":"Members","summary":"","title":"Anas Kastantin"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/florent-dobler/","section":"Members","summary":"","title":"Florent Dobler"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/arshdeep-janjua/","section":"Members","summary":"","title":"Arshdeep Janjua"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/aymeric-brochier/","section":"Members","summary":"","title":"Aymeric Brochier"},{"content":"Office 420, IMAG building\n","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/didier-donsez/","section":"Members","summary":"\u003cp\u003eOffice 420, \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/where-to-find-us/\"\u003eIMAG building\u003c/a\u003e\u003c/p\u003e","title":"Didier Donsez"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/maxence-flechier/","section":"Members","summary":"","title":"Maxence Flechier"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/phd-students/zul-odgerel/","section":"Members","summary":"","title":"Zul Odgerel"},{"content":"WalToR platform\nPersyval\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/anr-persyval-waltor/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://persyval.univ-grenoble-alpes.fr/formation/plateformes/waltor-fenix\" target=\"_blank\" rel=\"noreferrer\"\u003eWalToR\u003c/a\u003e platform\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://persyval-lab.org\" target=\"_blank\" rel=\"noreferrer\"\u003ePersyval\u003c/a\u003e\u003c/p\u003e","title":"ANR Persyval WalToR – 2024"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/partnerships/partners/schneider-walt/","section":"Partnerships \u0026 events","summary":"","title":"Schneider Electric — WalT"},{"content":"Position: Ph.D. student\nLocation: Grenoble, France Hosting university: Université Grenoble Alpes Hosting laboratory: Laboratoire d’Informatique de Grenoble (LIG), DRAKKAR team Contract: fixed-term three years Supervision: Andrzej Duda and Maciej Korczyński Application deadline: ASAP Duration: 3 years Start date: ASAP Context\nThe modern Internet has grown into the biggest \u0026ldquo;network of networks\u0026rdquo; in the world, interconnecting billions of end users and devices. Yet security was not a concern in its early days, so some of the fundamental protocols — the Internet Protocol (IP), the Border Gateway Protocol (BGP), the Domain Name System (DNS) — are inherently insecure. Security requirements have changed drastically since then, but millions of Internet-connected hosts still run vulnerable configurations, and as new protocols appear, bugs and misconfigurations remain commonplace.\nThere is an urgent need to understand the threat landscape of various network protocols that shape the modern Internet. This thesis will tackle the problem using a four-step approach:\nIdentify: you will read RFCs, specifications, white papers, incident reports, software CHANGELOGs, and bug reports to identify areas where potential security threats may reside. Measure: you will use various measurement tools (e.g., zmap, zdns) as well as the software you develop yourself to locate vulnerable systems across the Internet, ethically. Analyze: you will thoroughly analyze the measurement data to show the trends, distribution and concentration of vulnerabilities across countries, organizations, and software. Notify: you will responsibly disclose your findings to the involved parties, e.g., Computer Security Incident Response Teams, software vendors, domain registrars, or regional Internet registries. Our ultimate goal is to decrease the population of vulnerable resources on the Internet, thus improving its overall security, stability, and resiliency.\nThe Ph.D. program will take place within the framework of the Joint Base for Cyber Intelligence and Detection project. This project is a French cyber threat intelligence platform led by Thales and involves collaboration with stakeholders from both the public and private sectors. It was established in response to a call from Bpifrance and is an integral part of France\u0026rsquo;s national cyber strategy outlined in the France 2030 investment plan.\nYour profile\nMaster\u0026rsquo;s degree or equivalent in IT/CS/Telecom or a related field Excellent programming and scripting (Python, Bash, other languages are a plus) Proficiency in Debian/Ubuntu or other Unix-like operating systems Good knowledge of TCP/IP networking Excellent written and spoken English Research experience is a plus Industry experience is a plus What we offer\nA research team with a strong background in computer networking and cybersecurity. Cutting-edge research topics. Our past projects include domain name classification, measurements of the deployment of source address validation, DNS interception, and zone poisoning, among others. Collaboration with top industry players, such as ICANN, RIPE NCC, or Thales. Publications at top conferences (e.g., Internet Measurement Conference, IEEE European Symposium on Security and Privacy, Network and Distributed System Security Symposium). Close supervision. An international team. LIG laboratory is located in Grenoble, the capital of the Alps. It is a major French scientific and industrial center for computer science and applied mathematics. The city lies amidst three mountain ranges and offers an exceptional quality of life, with efficient public transportation and dedicated bikeways.\nHow to apply\nApplicants should send a detailed CV along with a motivation letter, your most recent degree certificate, transcripts of undergraduate and graduate studies to maciej.korczynski@univ-grenoble-alpes.fr. Email subject must start with \u0026ldquo;[Ph.D. Application: Measurements for Cybersecurity]\u0026rdquo;. References or letters of recommendation are appreciated. We will assess applications as they come in until the position is filled.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/phd-position-on-network-security-grenoble-institute-of-technology/","section":"Join us","summary":"\u003cp\u003ePosition: Ph.D. student\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eLocation: Grenoble, France\u003c/li\u003e\n\u003cli\u003eHosting university: Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eHosting laboratory: Laboratoire d’Informatique de Grenoble (LIG), DRAKKAR team\u003c/li\u003e\n\u003cli\u003eContract: fixed-term three years\u003c/li\u003e\n\u003cli\u003eSupervision: Andrzej Duda and Maciej Korczyński\u003c/li\u003e\n\u003cli\u003eApplication deadline: ASAP\u003c/li\u003e\n\u003cli\u003eDuration: 3 years\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContext\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe modern Internet has grown into the biggest \u0026ldquo;network of networks\u0026rdquo; in the world, interconnecting billions of end users and devices. Yet security was not a concern in its early days, so some of the fundamental protocols — the Internet Protocol (IP), the Border Gateway Protocol (BGP), the Domain Name System (DNS) — are inherently insecure. Security requirements have changed drastically since then, but millions of Internet-connected hosts still run vulnerable configurations, and as new protocols appear, bugs and misconfigurations remain commonplace.\u003c/p\u003e","title":"PhD position on Network Security, Grenoble Institute of Technology"},{"content":"DNS stands for Domain Name System, and domain names are what our research is about. They are an integral part of our daily lives. You\u0026rsquo;ve already come across domain names such as \u0026ldquo;google.com\u0026rdquo;, \u0026ldquo;univ-grenoble-alpes.fr\u0026rdquo;, or \u0026ldquo;amazon.com\u0026rdquo;. But what about \u0026ldquo;support-tech-apple.com\u0026rdquo;, \u0026ldquo;bank-of-america-help.com\u0026rdquo; or even \u0026ldquo;paypall.com\u0026rdquo;? All of these are malicious domain names, built to mislead users into a phishing site.\nBy studying domain names, we can improve Internet security. One of our team\u0026rsquo;s earlier projects, COMAR, distinguishes compromised domain names from malicious ones. For example, if the domain name \u0026ldquo;univ-grenoble-alpes.fr\u0026rdquo; hosts malicious content, should it be taken down? And what about paypall.com? COMAR separates the compromised domain — here univ-grenoble-alpes.fr — whose administrator should be notified, from paypall.com, where the right response is to act against the domain name itself.\nInternship description #This internship is a first taste of research. It aims to explore the RDAP protocol and its specification in depth. The RDAP protocol, designed to replace WHOIS, has become a major standard for accessing domain name registration information. The aim of this internship is to develop an in-depth understanding of how the RDAP protocol works and its usefulness in today\u0026rsquo;s Internet context, in order to propose a more \u0026ldquo;human-friendly\u0026rdquo; tool.\nMissions # Create an open-source Python tool for retrieving RDAP data. Create a tool to check RDAP/RFC 7483 conformance. Check that RDAP services follow the specifications. Who we are looking for #Student in the final year of Master 2 in Computer Science (MOSIG, CYBERSEC, \u0026hellip;), with a strong interest in research and a desire to continue in the academic world. The candidate must show real curiosity: a desire to understand, to discover and to question. The position is also open to highly motivated M1 students.\nHow to apply #Interested candidates are invited to send their application, including a CV, a covering letter and anything else they think is relevant, to Maciej KORCZYNSKI (maciej.korczynski at univ-grenoble-alpes.fr) and Olivier HUREAU (olivier.hureau at univ-grenoble-alpes.fr)\nReferences # RFC 7482: Registration Data Access Protocol (RDAP) Query Format (https://datatracker.ietf.org/doc/html/rfc7482) RFC 7483: JSON Responses for the Registration Data Access Protocol (RDAP) (https://datatracker.ietf.org/doc/html/rfc7483) [1] Aruna Prem Bianzino, Davide Pezzuolo, and Gianluca Mazzini. 2014. Who Is Whois? An Analysis of Results Consistence. [2] Suqi Liu, Ian Foster, Stefan Savage, Geoffrey M. Voelker, and Lawrence K. Saul. 2015. Who Is .Com?: Learning to Parse WHOIS - Records. [3] Chaoyi Lu, Baojun Liu, Yiming Zhang, Zhou Li, Fenglu Zhang, Haixin Duan, Ying Liu, Joann Qiongna Chen, Jinjin Liang, Zaifeng Zhang, Shuang Hao, and Min Yang. 2021. From WHOIS to WHOWAS: A Large-Scale Measurement Study of Domain Registration Privacy under the GDPR. ","date":null,"permalink":"https://drakkar.imag.fr/join/internships/rdap-frontiere-entre-specification-du-protocole-et-son-implementation/","section":"Join us","summary":"\u003cp\u003eDNS stands for Domain Name System, and domain names are what our research is about. They are an integral part of our daily lives. You\u0026rsquo;ve already come across domain names such as \u0026ldquo;google.com\u0026rdquo;, \u0026ldquo;univ-grenoble-alpes.fr\u0026rdquo;, or \u0026ldquo;amazon.com\u0026rdquo;. But what about \u0026ldquo;support-tech-apple.com\u0026rdquo;, \u0026ldquo;bank-of-america-help.com\u0026rdquo; or even \u0026ldquo;paypall.com\u0026rdquo;? All of these are malicious domain names, built to mislead users into a phishing site.\u003c/p\u003e\n\u003cp\u003eBy studying domain names, we can improve Internet security. One of our team\u0026rsquo;s earlier projects, COMAR, distinguishes compromised domain names from malicious ones. For example, if the domain name \u0026ldquo;univ-grenoble-alpes.fr\u0026rdquo; hosts malicious content, should it be taken down? And what about paypall.com? COMAR separates the compromised domain — here univ-grenoble-alpes.fr — whose administrator should be notified, from paypall.com, where the right response is to act against the domain name itself.\u003c/p\u003e","title":"RDAP: Frontier between protocol specification and implementation"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/brandon-foubert/","section":"Members","summary":"","title":"Brandon Foubert"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/ben-chukwuemeka-benjamin/","section":"Members","summary":"","title":"Ben Chukwuemeka Benjamin"},{"content":"KOR Labs cybersecurity analyst\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/jan-bayer/","section":"Members","summary":"\u003cp\u003eKOR Labs cybersecurity analyst\u003c/p\u003e","title":"Jan Bayer"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/olivier-hureau/","section":"Members","summary":"","title":"Olivier Hureau"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/olivier-marsal/","section":"Members","summary":"","title":"Olivier Marsal"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/pierre-laroche/","section":"Members","summary":"","title":"Pierre Laroche"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/sabina-hadzialic/","section":"Members","summary":"","title":"Sabina Hadzialic"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/simon-fernandez/","section":"Members","summary":"","title":"Simon Fernandez"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/yevheniya-nosyk/","section":"Members","summary":"","title":"Yevheniya Nosyk"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/youssef-itani/","section":"Members","summary":"","title":"Youssef Itani"},{"content":"The Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to a wide range of practical aspects of cybersecurity. They would allow you to work on subjects such as:\nApplication of machine learning/artificial intelligence methods to cybersecurity problems Phishing attacks (e.g., discovering malicious domains, typosquatting, phishing attacks against financial institutions, etc.) Denial-of-Service attacks and defenses (e.g., prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g., building tools to search for vulnerabilities, vulnerability notifications) Cybercrime (e.g., bulletproof hosting providers) IoT Honeypots, sandboxes, botnets, malicious infrastructures Bypassing security measures, creating effective countermeasures and secure systems Network security (e.g., BGP, DNS) Measurements of the deployment of secure protocols (e.g., DNSSEC, DMARC) Malware reverse engineering If you are motivated and have a background in any of the topics listed above or other areas of cybersecurity and you’d like to propose your own subject, please send your CV to Maciej Korczynski [maciej.korczynski at univ-grenoble-alpes.fr]. Solid systems and programming skills are a big plus, but not required.\nInternational students are encouraged to apply. We can meet to discuss and potentially define an internship project. You may also be able to go on to a Ph.D. in the Drakkar team after your internship, or find a job at one of the security companies we work closely with.\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/internships-in-cybersecurity-20222023-m1m2-students/","section":"Join us","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to a wide range of practical aspects of cybersecurity. They would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication of machine learning/artificial intelligence methods to cybersecurity problems\u003c/li\u003e\n\u003cli\u003ePhishing  attacks  (e.g., discovering  malicious  domains,  typosquatting,  phishing  attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g., prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g., building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g., bulletproof hosting providers)\u003c/li\u003e\n\u003cli\u003eIoT Honeypots, sandboxes, botnets, malicious infrastructures\u003c/li\u003e\n\u003cli\u003eBypassing security measures, creating effective countermeasures and secure systems\u003c/li\u003e\n\u003cli\u003eNetwork security (e.g., BGP, DNS)\u003c/li\u003e\n\u003cli\u003eMeasurements of the deployment of secure protocols (e.g., DNSSEC, DMARC)\u003c/li\u003e\n\u003cli\u003eMalware reverse engineering\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above or other areas of cybersecurity and you’d like to propose your own subject, please send your CV to \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczynski\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr]. Solid systems and programming skills are a big plus, but not required.\u003c/p\u003e","title":"Internships in Cybersecurity 2022/2023 (M1/M2 students)"},{"content":"The Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to a wide range of practical aspects of cybersecurity. They would allow you to work on subjects such as:\nApplication of machine learning/artificial intelligence methods to cybersecurity problems Phishing attacks (e.g., discovering malicious domains, typosquatting, phishing attacks against financial institutions, etc.) Denial-of-Service attacks and defenses (e.g., prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g., building tools to search for vulnerabilities, vulnerability notifications) Cybercrime (e.g., bulletproof hosting providers) IoT Honeypots, sandboxes, botnets, malicious infrastructures Bypassing security measures, creating effective countermeasures and secure systems Network security (e.g., BGP, DNS) Measurements of the deployment of secure protocols (e.g., DNSSEC, DMARC) Malware reverse engineering If you are motivated and have a background in any of the topics listed above or other areas of cybersecurity and you’d like to propose your own subject, please send your CV to Maciej Korczynski [maciej.korczynski at univ-grenoble-alpes.fr]. Solid systems and programming skills are a big plus, but not required.\nInternational students are encouraged to apply. We can meet to discuss and potentially define an internship project. You may also be able to go on to a Ph.D. in the Drakkar team after your internship, or find a job at one of the security companies we work closely with.\n","date":"21 October 2022","permalink":"https://drakkar.imag.fr/news/internships-in-cybersecurity-20222023-m1m2-students/","section":"News","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to a wide range of practical aspects of cybersecurity. They would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication of machine learning/artificial intelligence methods to cybersecurity problems\u003c/li\u003e\n\u003cli\u003ePhishing  attacks  (e.g., discovering  malicious  domains,  typosquatting,  phishing  attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g., prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g., building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g., bulletproof hosting providers)\u003c/li\u003e\n\u003cli\u003eIoT Honeypots, sandboxes, botnets, malicious infrastructures\u003c/li\u003e\n\u003cli\u003eBypassing security measures, creating effective countermeasures and secure systems\u003c/li\u003e\n\u003cli\u003eNetwork security (e.g., BGP, DNS)\u003c/li\u003e\n\u003cli\u003eMeasurements of the deployment of secure protocols (e.g., DNSSEC, DMARC)\u003c/li\u003e\n\u003cli\u003eMalware reverse engineering\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above or other areas of cybersecurity and you’d like to propose your own subject, please send your CV to \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczynski\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr]. Solid systems and programming skills are a big plus, but not required.\u003c/p\u003e","title":"Internships in Cybersecurity 2022/2023 (M1/M2 students)"},{"content":"Visiting researcher, 2023\n","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/hannaneh-barahouei-pasandi/","section":"Members","summary":"\u003cp\u003eVisiting researcher, 2023\u003c/p\u003e","title":"Hannaneh Barahouei Pasandi"},{"content":"The ThingSat project, developed by CSUG and its partners, aims to create a CubeSat payload for designing and benchmarking long-distance communication protocols using low-power LoRa modulation for Bidirectional Satellite IoT services (SatIoT) and Low Power Global Area Networks (LPGAN).\nMore info on ThingSat\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/thingsat-with-csug/","section":"Projects","summary":"\u003cp\u003eThe ThingSat project, developed by CSUG and its partners, aims to create a CubeSat payload for designing and benchmarking long-distance communication protocols using low-power LoRa modulation for Bidirectional Satellite IoT services (SatIoT) and Low Power Global Area Networks (LPGAN).\u003c/p\u003e\n\u003cp\u003eMore info on \u003ca href=\"https://gricad-gitlab.univ-grenoble-alpes.fr/thingsat/public/-/blob/master/cubesat_mission/README.md\" target=\"_blank\" rel=\"noreferrer\"\u003eThingSat\u003c/a\u003e\u003c/p\u003e","title":"ThingSat with CSUG – 2022"},{"content":"Traffic Measurements and Data Analysis for DNS Security #The habilitation defence will take place on Friday 17 December 2021 at 14:00 in the auditorium of the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #The Domain Name System (DNS) protocol maps easy-to-remember domain names to their computer-friendly numeric labels, assigned to each Internet-connected device that uses the Internet Protocol. DNS is the most critical and largely unheralded protocol, in the absence of which Internet users would need to memorize IP addresses of all the Internet applications, including banking sites, emails, or social media. In the early days of the Internet, as highlighted by Dr. Paul Vixie, scientists invested all their efforts in facilitating communications because they believed that “something like the Internet could become humanity’s collective digital nervous system.” When the DNS principles and specifications were designed nearly four decades ago, security consideration was not an issue because the Internet was a network of trusted users. Danny Hillis, an American inventor and scientist, when registering the third domain name on the Internet thought that he should register a few more just in case, but he felt that “it wouldn’t be nice.” This example illustrates the trust within the community; the trust that was also built into the protocols of the Internet, including DNS. Today’s Internet is not only “humanity’s collective digital nervous system” but also a place where cybercriminals exploit technical vulnerabilities and human weaknesses for financial gain. Spammers, phishers, malware creators, speculators, or organized ecrime groups widely abuse the DNS protocol and domain names. DNS has become as critical for them to operate as it is for regular users. Preventing registration of malicious domains is challenging because it requires assessing the (bad) intentions of domain owners. Prompt removal of domain names directly involved in e-crime requires collecting evidence or verifying evidence provided by trusted notifiers of malicious activity. DNS and hosting providers do not have the financial incentives to effectively confront domain name abuse. The DNS infrastructure itself remains vulnerable to attacks due to not restrictive enough assumptions about cybercriminals and the threat model when designing protocols in the early days of the Internet. Newly discovered vulnerabilities inherent to the DNS design drive the development and deployment of new extensions to the DNS protocol. However, their uptake has been very slow. It has become less of a technology issue than an economic incentive problem, i.e., whether implementing such security technologies can be profitable for the operators deploying them. The distributed nature and architecture of the DNS protocol also allow for increased Internet security and stability. One example in which DNS plays an important role is in email security protocols: the Sender Policy Framework (SPF) and the Domain-based Message Authentication, Reporting, and Conformance (DMARC). While the Simple Mail Transfer Protocol (SMTP), designed for email distribution, is inherently insecure, SPF and DMARC providing a set of rules stored in the ‘TXT’ records of DNS resources can eliminate the problem of domain spoofing. Cybercriminals also abuse the DNS protocol architecture and its features to enhance the resilience of malicious infrastructures, amplify attacks, and avoid detection. Just mention Automatically Generated Domains (AGD) combined with fast-flux networks or Distributed Reflective Denial-of-Service (DRDoS) attacks that leverage open DNS resolvers. Motivated by the problems of DNS security and domain name abuse, this dissertation has been devoted to DNS security: to make communications more selective and more difficult for malicious actors so that the “collective digital nervous system” – the Internet – stays less affected, more secure, and trusted by their benign users. The first three contributions present DNS measurement studies related to weaknesses inherent to Internet protocols and domain names that can lead to the exploitation of DNS infrastructure and domain names. The following three contributions present statistical and machine learning approaches related to domain name abuse based on traffic measurements and inferential analysis from DNS-related data. The first contribution illuminates the problem of non-secure DNS dynamic updates, which allow a miscreant to manipulate DNS entries in the zone files of authoritative name servers. We refer to this type of attack as zone poisoning. In its simplest version, a malicious actor could replace an existing ‘A’ or ‘MX’ resource record (RR) in a zone file of an authoritative server and point the domain name to an IP address under control of an attacker, thus effectively hijacking the domain name. We present the first measurement study of the vulnerability. Among the vulnerable domains are governments, health care providers, and banks, demonstrating that the threat impacts important services. With this study and subsequent notifications to affected parties, we aim to improve the security of the DNS ecosystem. Source Address Validation (SAV) is a standard aimed at discarding packets with spoofed source IP addresses. The absence of SAV for outgoing traffic is a root cause of DRDoS attacks and received widespread attention. While less obvious, the absence of inbound filtering enables an attacker to appear as an internal host of a network and reveals valuable information about the network infrastructure. It may enable other attack vectors such as DNS cache poisoning. As a second contribution, we present the results of the Closed Resolver Project that aims at mitigating the problem of inbound IP spoofing. We perform the first Internet-wide active measurement study to enumerate networks that do not enforce filtering of incoming packets based on their source addresses. To achieve this goal, we identify closed and open DNS resolvers that accept spoofed requests coming from the outside of their network. Our work implies that the absence of inbound SAV makes DNS resolvers vulnerable to several types of attacks, including DNS cache poisoning, DNS zone poisoning, NXNSAttack, or zero-day vulnerabilities in the DNS server software. Sending forged emails by taking advantage of domain spoofing is a common technique used by attackers. The lack of appropriate email anti-spoofing schemes or their misconfiguration lead to successful phishing attacks or spam dissemination. In the third contribution, we evaluate the coverage of SPF and DMARC deployment in two large-scale campaigns measuring their global adoption rate and deployment by high-profile domains. We propose a new algorithm for identifying defensively registered domains and enumerating the domains with misconfigured SPF rules. We define for the first time, new threat models involving subdomain spoofing and present a methodology for preventing domain spoofing, a combination of good practices for managing SPF and DMARC records and analyzing DNS logs. Our measurement results show that a large part of the domains do not correctly configure the SPF and DMARC rules, which enables attackers to deliver forged emails to user inboxes. Finally, we report on remediation and its effects by presenting the results of notifications sent to Computer Security Incident Response Teams responsible for affected domains. To enhance competition and choice in the domain name system, the Internet Corporation for Assigned Names and Numbers introduced the new generic Top-Level Domain (gTLD) program, which added hundreds of new gTLDs (e.g. .nyc, .top) to the root DNS zone. While the program arguably increased the range of domain names available to consumers, it has also created new opportunities for cybercriminals. To investigate this issue, in the fourth contribution, we present the first comparative study of abuse in the domains registered under the new gTLD program and legacy gTLDs (e.g. .com, .org). We combine historical datasets from various sources, including DNS zone files, WHOIS records, passive and active DNS and HTTP measurements, and reputable domain name blacklists to study abuse across gTLDs. We find that the new gTLDs appear to have diverted abuse from the legacy gTLDs: while the total number of domains abused for spam remains stable across gTLDs, we observe a growing number of spam domains in new gTLDs, which suggests a shift from legacy gTLDs to new gTLDs. We also analyze the relationship between DNS abuse, operator security indicators, and the structural properties of new gTLDs. The results indicate that there is an inverse correlation between abuse and stricter registration policies. Our findings suggest that cybercriminals increasingly prefer to register, rather than hack, domain names and some new gTLDs have become a magnet for malicious actors. As the presented state of the art in gTLD abuse is in clear need of improvement, we have developed cases for modifying the existing safeguards and proposed new ones. ICANN is currently using these results to review the existing anti-abuse safeguards, evaluate their joint effects, and introduce more effective safeguards before an upcoming new gTLD rollout. Malicious actors abuse thousands of domain names every day by launching large-scale attacks such as phishing or malware campaigns. While some domains are solely registered for malicious purposes, others are benign but get compromised and misused to serve malicious content. Existing methods for their detection can either predict malicious domains at the time of registration or identify indicators of an ongoing malicious activity conflating maliciously registered and compromised domains into common blacklists. Since the mitigation actions for these two types domains are different, in the fifth contribution, we propose COMAR (Classification of Compromised versus Maliciously Registered Domains), an approach to differentiate between compromised and maliciously registered domains, complementary to previously proposed domain reputation systems. We start with a thorough analysis of the domain life cycle to determine the relationship between each step and define its associated features. Based on the analysis, we define a set of 38 features costly to evade. We evaluate COMAR using phishing and malware blacklists and show that it can achieve high accuracy (97% accuracy with a 2.5% false-positive rate) without using any privileged or non publicly available data, which makes it suitable for the use by any organization. We plan to deploy COMAR at two domain registry operators of the European country-code TLDs and set up an early notification system to facilitate the remediation of blacklisted domains. In 2016, law enforcement dismantled the infrastructure of the Avalanche bulletproof hosting service, the largest takedown of a cybercrime operation so far. The malware families supported by Avalanche use Domain Generation Algorithms (DGAs) to generate random domain names for controlling their botnets. The takedown proactively targeted these presumably malicious domains, however, as coincidental collisions with legitimate domains are possible, investigators had first to classify domains to prevent undesirable harm to website owners and botnet victims. The constraints of this real-world takedown (proactive decisions without access to malware activity, no bulk patterns, and no active connections) mean that approaches based on the state of the art cannot be applied. The problem of classifying thousands of registered DGA domain names therefore required an extensive, painstaking manual effort by law enforcement investigators. To significantly reduce this effort without compromising correctness, we develop a model that automates the classification. Through a synergetic approach, we achieve an accuracy of 97.6% with ground truth from the 2017 and 2018 Avalanche takedowns. For the 2019 takedown, this translates into a reduction of 76.9% in manual investigation effort. Furthermore, we interpret the model to provide investigators with insights into how benign and malicious domains differ in behavior, which features and data sources are the most important, and how the model can be applied according to the practical requirements of a real-world takedown. Finally, we assisted law enforcement agencies by applying our approach to the 2019 Avalanche takedown iteration. It is beyond doubt that selective and secure DNS communication is the basis for a more secure and stable Internet. Armed with the experience of the early days of the Internet and technological advances providing several missing security blocks in DNS, our work contributes to the implementation of security protocols, the identification of new (old) security problems overlooked by the community, as well as the development of statistical and machine learning methods to help intermediaries more effectively mitigate domain name abuse.\nThe full text is available on HAL: tel-04788573.\n","date":"17 December 2021","permalink":"https://drakkar.imag.fr/news/soutenance-dhdr-maciej-korczynski-17-decembre/","section":"News","summary":"\u003ch3 id=\"traffic-measurements-and-data-analysis-for-dns-security\" class=\"relative group\"\u003eTraffic Measurements and Data Analysis for DNS Security \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#traffic-measurements-and-data-analysis-for-dns-security\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe habilitation defence will take place on \u003cstrong\u003eFriday 17 December 2021 at 14:00\u003c/strong\u003e in the auditorium of the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe Domain Name System (DNS) protocol maps easy-to-remember domain names to their computer-friendly numeric labels, assigned to each Internet-connected device that uses the Internet Protocol. DNS is the most critical and largely unheralded protocol, in the absence of which Internet users would need to memorize IP addresses of all the Internet applications, including banking sites, emails, or social media. In the early days of the Internet, as highlighted by Dr. Paul Vixie, scientists invested all their efforts in facilitating communications because they believed that “something like the Internet could become humanity’s collective digital nervous system.” When the DNS principles and specifications were designed nearly four decades ago, security consideration was not an issue because the Internet was a network of trusted users. Danny Hillis, an American inventor and scientist, when registering the third domain name on the Internet thought that he should register a few more just in case, but he felt that “it wouldn’t be nice.” This example illustrates the trust within the community; the trust that was also built into the protocols of the Internet, including DNS. Today’s Internet is not only “humanity’s collective digital nervous system” but also a place where cybercriminals exploit technical vulnerabilities and human weaknesses for financial gain. Spammers, phishers, malware creators, speculators, or organized ecrime groups widely abuse the DNS protocol and domain names. DNS has become as critical for them to operate as it is for regular users. Preventing registration of malicious domains is challenging because it requires assessing the (bad) intentions of domain owners. Prompt removal of domain names directly involved in e-crime requires collecting evidence or verifying evidence provided by trusted notifiers of malicious activity. DNS and hosting providers do not have the financial incentives to effectively confront domain name abuse. The DNS infrastructure itself remains vulnerable to attacks due to not restrictive enough assumptions about cybercriminals and the threat model when designing protocols in the early days of the Internet. Newly discovered vulnerabilities inherent to the DNS design drive the development and deployment of new extensions to the DNS protocol. However, their uptake has been very slow. It has become less of a technology issue than an economic incentive problem, i.e., whether implementing such security technologies can be profitable for the operators deploying them. The distributed nature and architecture of the DNS protocol also allow for increased Internet security and stability. One example in which DNS plays an important role is in email security protocols: the Sender Policy Framework (SPF) and the Domain-based Message Authentication, Reporting, and Conformance (DMARC). While the Simple Mail Transfer Protocol (SMTP), designed for email distribution, is inherently insecure, SPF and DMARC providing a set of rules stored in the ‘TXT’ records of DNS resources can eliminate the problem of domain spoofing. Cybercriminals also abuse the DNS protocol architecture and its features to enhance the resilience of malicious infrastructures, amplify attacks, and avoid detection. Just mention Automatically Generated Domains (AGD) combined with fast-flux networks or Distributed Reflective Denial-of-Service (DRDoS) attacks that leverage open DNS resolvers. Motivated by the problems of DNS security and domain name abuse, this dissertation has been devoted to DNS security: to make communications more selective and more difficult for malicious actors so that the “collective digital nervous system” – the Internet – stays less affected, more secure, and trusted by their benign users. The first three contributions present DNS measurement studies related to weaknesses inherent to Internet protocols and domain names that can lead to the exploitation of DNS infrastructure and domain names. The following three contributions present statistical and machine learning approaches related to domain name abuse based on traffic measurements and inferential analysis from DNS-related data. The first contribution illuminates the problem of non-secure DNS dynamic updates, which allow a miscreant to manipulate DNS entries in the zone files of authoritative name servers. We refer to this type of attack as zone poisoning. In its simplest version, a malicious actor could replace an existing ‘A’ or ‘MX’ resource record (RR) in a zone file of an authoritative server and point the domain name to an IP address under control of an attacker, thus effectively hijacking the domain name. We present the first measurement study of the vulnerability. Among the vulnerable domains are governments, health care providers, and banks, demonstrating that the threat impacts important services. With this study and subsequent notifications to affected parties, we aim to improve the security of the DNS ecosystem. Source Address Validation (SAV) is a standard aimed at discarding packets with spoofed source IP addresses. The absence of SAV for outgoing traffic is a root cause of DRDoS attacks and received widespread attention. While less obvious, the absence of inbound filtering enables an attacker to appear as an internal host of a network and reveals valuable information about the network infrastructure. It may enable other attack vectors such as DNS cache poisoning. As a second contribution, we present the results of the Closed Resolver Project that aims at mitigating the problem of inbound IP spoofing. We perform the first Internet-wide active measurement study to enumerate networks that do not enforce filtering of incoming packets based on their source addresses. To achieve this goal, we identify closed and open DNS resolvers that accept spoofed requests coming from the outside of their network. Our work implies that the absence of inbound SAV makes DNS resolvers vulnerable to several types of attacks, including DNS cache poisoning, DNS zone poisoning, NXNSAttack, or zero-day vulnerabilities in the DNS server software. Sending forged emails by taking advantage of domain spoofing is a common technique used by attackers. The lack of appropriate email anti-spoofing schemes or their misconfiguration lead to successful phishing attacks or spam dissemination. In the third contribution, we evaluate the coverage of SPF and DMARC deployment in two large-scale campaigns measuring their global adoption rate and deployment by high-profile domains. We propose a new algorithm for identifying defensively registered domains and enumerating the domains with misconfigured SPF rules. We define for the first time, new threat models involving subdomain spoofing and present a methodology for preventing domain spoofing, a combination of good practices for managing SPF and DMARC records and analyzing DNS logs. Our measurement results show that a large part of the domains do not correctly configure the SPF and DMARC rules, which enables attackers to deliver forged emails to user inboxes. Finally, we report on remediation and its effects by presenting the results of notifications sent to Computer Security Incident Response Teams responsible for affected domains. To enhance competition and choice in the domain name system, the Internet Corporation for Assigned Names and Numbers introduced the new generic Top-Level Domain (gTLD) program, which added hundreds of new gTLDs (e.g. .nyc, .top) to the root DNS zone. While the program arguably increased the range of domain names available to consumers, it has also created new opportunities for cybercriminals. To investigate this issue, in the fourth contribution, we present the first comparative study of abuse in the domains registered under the new gTLD program and legacy gTLDs (e.g. .com, .org). We combine historical datasets from various sources, including DNS zone files, WHOIS records, passive and active DNS and HTTP measurements, and reputable domain name blacklists to study abuse across gTLDs. We find that the new gTLDs appear to have diverted abuse from the legacy gTLDs: while the total number of domains abused for spam remains stable across gTLDs, we observe a growing number of spam domains in new gTLDs, which suggests a shift from legacy gTLDs to new gTLDs. We also analyze the relationship between DNS abuse, operator security indicators, and the structural properties of new gTLDs. The results indicate that there is an inverse correlation between abuse and stricter registration policies. Our findings suggest that cybercriminals increasingly prefer to register, rather than hack, domain names and some new gTLDs have become a magnet for malicious actors. As the presented state of the art in gTLD abuse is in clear need of improvement, we have developed cases for modifying the existing safeguards and proposed new ones. ICANN is currently using these results to review the existing anti-abuse safeguards, evaluate their joint effects, and introduce more effective safeguards before an upcoming new gTLD rollout. Malicious actors abuse thousands of domain names every day by launching large-scale attacks such as phishing or malware campaigns. While some domains are solely registered for malicious purposes, others are benign but get compromised and misused to serve malicious content. Existing methods for their detection can either predict malicious domains at the time of registration or identify indicators of an ongoing malicious activity conflating maliciously registered and compromised domains into common blacklists. Since the mitigation actions for these two types domains are different, in the fifth contribution, we propose COMAR (Classification of Compromised versus Maliciously Registered Domains), an approach to differentiate between compromised and maliciously registered domains, complementary to previously proposed domain reputation systems. We start with a thorough analysis of the domain life cycle to determine the relationship between each step and define its associated features. Based on the analysis, we define a set of 38 features costly to evade. We evaluate COMAR using phishing and malware blacklists and show that it can achieve high accuracy (97% accuracy with a 2.5% false-positive rate) without using any privileged or non publicly available data, which makes it suitable for the use by any organization. We plan to deploy COMAR at two domain registry operators of the European country-code TLDs and set up an early notification system to facilitate the remediation of blacklisted domains. In 2016, law enforcement dismantled the infrastructure of the Avalanche bulletproof hosting service, the largest takedown of a cybercrime operation so far. The malware families supported by Avalanche use Domain Generation Algorithms (DGAs) to generate random domain names for controlling their botnets. The takedown proactively targeted these presumably malicious domains, however, as coincidental collisions with legitimate domains are possible, investigators had first to classify domains to prevent undesirable harm to website owners and botnet victims. The constraints of this real-world takedown (proactive decisions without access to malware activity, no bulk patterns, and no active connections) mean that approaches based on the state of the art cannot be applied. The problem of classifying thousands of registered DGA domain names therefore required an extensive, painstaking manual effort by law enforcement investigators. To significantly reduce this effort without compromising correctness, we develop a model that automates the classification. Through a synergetic approach, we achieve an accuracy of 97.6% with ground truth from the 2017 and 2018 Avalanche takedowns. For the 2019 takedown, this translates into a reduction of 76.9% in manual investigation effort. Furthermore, we interpret the model to provide investigators with insights into how benign and malicious domains differ in behavior, which features and data sources are the most important, and how the model can be applied according to the practical requirements of a real-world takedown. Finally, we assisted law enforcement agencies by applying our approach to the 2019 Avalanche takedown iteration. It is beyond doubt that selective and secure DNS communication is the basis for a more secure and stable Internet. Armed with the experience of the early days of the Internet and technological advances providing several missing security blocks in DNS, our work contributes to the implementation of security protocols, the identification of new (old) security problems overlooked by the community, as well as the development of statistical and machine learning methods to help intermediaries more effectively mitigate domain name abuse.\u003c/p\u003e","title":"HDR defense — Maciej Korczynski — December 17"},{"content":"Optimization and experimental characterization of Low Power Wide Area Networks #The defence will take place on Wednesday 15 December 2021 at 14:00 in lecture theatre H at Ensimag, 161 rue des Mathématiques, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #Low Power Wider Area Networks (LPWAN) are getting increased interest from academia and industry. They address the Internet of Things (IoT) needs for low power and long-range networks, providing efficient connectivity over wide areas and enabling innovative applications. This thesis focuses on the LoRa/LoRaWAN technology, a promising LPWAN candidate, which offers many advantages but presents some challenges in terms of scalability and reliability. In the first part of this thesis, we study, evaluate, and characterize the LoRaWAN network link quality; then, we consider one of the major limitations of the technology, namely the channel access, by proposing a technique to improve the capacity of the network. In a first contribution, we explore the actual LoRaWAN network state by monitoring all traffic on a LoRaWAN gateway and, subsequently, conducting a thorough analysis of the current practice for setting the different parameters by the ambient traffic. In a second contribution, we evaluate and characterize the transmission quality of LoRa links by measuring the Packet Reception Rate (PRR) as a function of the payload length. We conducted extensive experiments on a test-bed in The Things Network (TTN) and investigated the resulting analysis, which shows only a slight impact on the payload length on PRR.In the third contribution, we characterize the wireless channel experimentally, determine its behavior, and examine what factors depend on it.For both an indoor and outdoor sender, we have identified different patterns, considering the time variability of the channel at different gateways. Finally, we address one of the major limiting factors in LoRaWAN networks, the Aloha-like access method. We study how the Message In Message (MIM) technique for LoRaWAN would have the potential to improve the network capacity. We show that while LoRaWAN with capture effect only allows reaching 23% of the channel utilization, MIM enables us to increase this utilization rate up to 35% in a single LoRaWAN cell scenario.\nThe full text is available on HAL: tel-03677125.\n","date":"15 December 2021","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-takwa-attia-15-decembre/","section":"News","summary":"\u003ch3 id=\"optimization-and-experimental-characterization-of-low-power-wide-area-networks\" class=\"relative group\"\u003eOptimization and experimental characterization of Low Power Wide Area Networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#optimization-and-experimental-characterization-of-low-power-wide-area-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on \u003cstrong\u003eWednesday 15 December 2021 at 14:00\u003c/strong\u003e in lecture theatre H at Ensimag, 161 rue des Mathématiques, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eLow Power Wider Area Networks (LPWAN) are getting increased interest from academia and industry. They address the Internet of Things (IoT) needs for low power and long-range networks, providing efficient connectivity over wide areas and enabling innovative applications. This thesis focuses on the LoRa/LoRaWAN technology, a promising LPWAN candidate, which offers many advantages but presents some challenges in terms of scalability and reliability. In the first part of this thesis, we study, evaluate, and characterize the LoRaWAN network link quality; then, we consider one of the major limitations of the technology, namely the channel access, by proposing a technique to improve the capacity of the network. In a first contribution, we explore the actual LoRaWAN network state by monitoring all traffic on a LoRaWAN gateway and, subsequently, conducting a thorough analysis of the current practice for setting the different parameters by the ambient traffic. In a second contribution, we evaluate and characterize the transmission quality of LoRa links by measuring the Packet Reception Rate (PRR) as a function of the payload length. We conducted extensive experiments on a test-bed in The Things Network (TTN) and investigated the resulting analysis, which shows only a slight impact on the payload length on PRR.In the third contribution, we characterize the wireless channel experimentally, determine its behavior, and examine what factors depend on it.For both an indoor and outdoor sender, we have identified different patterns, considering the time variability of the channel at different gateways. Finally, we address one of the major limiting factors in LoRaWAN networks, the Aloha-like access method. We study how the Message In Message (MIM) technique for LoRaWAN would have the potential to improve the network capacity. We show that while LoRaWAN with capture effect only allows reaching 23% of the channel utilization, MIM enables us to increase this utilization rate up to 35% in a single LoRaWAN cell scenario.\u003c/p\u003e","title":"Thesis defense — Takwa Attia — December 15"},{"content":"Reliability and scalabity of low power and long range networks. #The defence will take place on Tuesday 7 December 2021 at 10:00 in the lecture theatre of the Maison Jean Kuntzmann, 110 rue de la Chimie, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #This thesis focuses on Low Power Wide Area Networks (LPWAN), a new class of wireless networks which aim to provide massive connectivity at a low cost in the context of the Internet of Things (IoT).This thesis focuses more particularly on the LoRaWAN technology, which is an open protocol based on the LoRa proprietary modulation.LoRaWAN knows a significant success and is now established as one of the major players in LPWAN networks. A typical LoRaWAN network is composed of a massive number of end devices (ED), i.e. connected objects, a set of gateways (GW) acting as bridges between the LoRa network and the Internet Protocol (IP) network and finally a network server (NS).EDs transmit their data via LoRa modulation with an random channel access method (unslotted Aloha-like), i.e. without any form of coordination. The GWs transmit to the NS via the IP network all the data captured on their LoRa interface. The NS is responsible for processing the received data.LoRaWAN is an uplink oriented network, meaning that the overwhelming majority of the traffic is expected to be from the EDs to the NS.However, LoRaWAN also allows rare downlink transmissions, from the NS to the EDs.Due to the massive number of EDs, the low transmission powers and the random channel access method, data is sometimes lost by the LoRa link. This thesis proposes solutions to make LoRaWAN communication more reliable, i.e. to deliver more than 99% of the application data. The reliability gain must be achieved in a realistic manner with respect to the capacity of the network, i.e. the number of EDs that can be served by the network in the same area. The consequence of this constraint is twofold: on the one hand the Time On Air (TOA) for the uplink transmissions must be kept as low as possible in order to avoid network congestion as much as possible, and on the other hand the TOA for downlink transmissions must be kept extremely low due to the limited downstream capability of LoRaWAN.With the goal of a reliable LoRaWAN communication, this thesis firstly proposes an in-depth study of the characteristics of the LoRaWAN link, based on experimental measurements in a public urban network. Our characterization of the LoRaWAN link leads us to conclude that the reliability mechanisms currently existing in the LoRaWAN protocol are unfit to provide a highly reliable link. We therefore propose adaptations to make the LoRaWAN protocol reliable while conserving the technology scalability. The thesis proposes two types of adaptations:The first adaptation consists in adding an error recovery protocol overlay, transparent for LoRaWAN, based on error correcting codes applied transversely to the packet flow. This approach makes it possible to reconstitute all of the data transmitted despite packet losses. The thesis proposes two distinct algorithms for this error recovery aspect, one based on the Reed-Solomon correcting code, and the other based on a correcting code derived from Low Density Parity Check (LDPC) codes. This thesis evaluates the performance of the two proposed error recovery algorithms. The second proposed adaptation consists in reviewing the distribution of the transmission parameters of the EDs in the network. It is based both on the characterization of the LoRaWAN channel and on the observation that the proposed error recovery overlay makes it possible to obtain high reliability while making it possible to be tolerant to a certain threshold of packet loss. This thesis therefore proposes to review the LoRaWAN\u0026rsquo;s Adaptive Data Rate (ADR) algorithm. The ADR is an algorithm which supports over-the-air and dynamic configuration of the EDs transmission parameters. We propose in this thesis, to optimize the ADR in order to reduce the TOA of the EDs to the minimum required.\nThe full text is available on HAL: tel-03667961.\n","date":"7 December 2021","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-ulysse-coutaud-7-decembre/","section":"News","summary":"\u003ch3 id=\"reliability-and-scalabity-of-low-power-and-long-range-networks\" class=\"relative group\"\u003eReliability and scalabity of low power and long range networks. \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#reliability-and-scalabity-of-low-power-and-long-range-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on \u003cstrong\u003eTuesday 7 December 2021 at 10:00\u003c/strong\u003e in the lecture theatre of the Maison Jean Kuntzmann, 110 rue de la Chimie, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThis thesis focuses on Low Power Wide Area Networks (LPWAN), a new class of wireless networks which aim to provide massive connectivity at a low cost in the context of the Internet of Things (IoT).This thesis focuses more particularly on the LoRaWAN technology, which is an open protocol based on the LoRa proprietary modulation.LoRaWAN knows a significant success and is now established as one of the major players in LPWAN networks. A typical LoRaWAN network is composed of a massive number of end devices (ED), i.e. connected objects, a set of gateways (GW) acting as bridges between the LoRa network and the Internet Protocol (IP) network and finally a network server (NS).EDs transmit their data via LoRa modulation with an random channel access method (unslotted Aloha-like), i.e. without any form of coordination. The GWs transmit to the NS via the IP network all the data captured on their LoRa interface. The NS is responsible for processing the received data.LoRaWAN is an uplink oriented network, meaning that the overwhelming majority of the traffic is expected to be from the EDs to the NS.However, LoRaWAN also allows rare downlink transmissions, from the NS to the EDs.Due to the massive number of EDs, the low transmission powers and the random channel access method, data is sometimes lost by the LoRa link. This thesis proposes solutions to make LoRaWAN communication more reliable, i.e. to deliver more than 99% of the application data. The reliability gain must be achieved in a realistic manner with respect to the capacity of the network, i.e. the number of EDs that can be served by the network in the same area. The consequence of this constraint is twofold: on the one hand the Time On Air (TOA) for the uplink transmissions must be kept as low as possible in order to avoid network congestion as much as possible, and on the other hand the TOA for downlink transmissions must be kept extremely low due to the limited downstream capability of LoRaWAN.With the goal of a reliable LoRaWAN communication, this thesis firstly proposes an in-depth study of the characteristics of the LoRaWAN link, based on experimental measurements in a public urban network. Our characterization of the LoRaWAN link leads us to conclude that the reliability mechanisms currently existing in the LoRaWAN protocol are unfit to provide a highly reliable link. We therefore propose adaptations to make the LoRaWAN protocol reliable while conserving the technology scalability. The thesis proposes two types of adaptations:The first adaptation consists in adding an error recovery protocol overlay, transparent for LoRaWAN, based on error correcting codes applied transversely to the packet flow. This approach makes it possible to reconstitute all of the data transmitted despite packet losses. The thesis proposes two distinct algorithms for this error recovery aspect, one based on the Reed-Solomon correcting code, and the other based on a correcting code derived from Low Density Parity Check (LDPC) codes. This thesis evaluates the performance of the two proposed error recovery algorithms. The second proposed adaptation consists in reviewing the distribution of the transmission parameters of the EDs in the network. It is based both on the characterization of the LoRaWAN channel and on the observation that the proposed error recovery overlay makes it possible to obtain high reliability while making it possible to be tolerant to a certain threshold of packet loss. This thesis therefore proposes to review the LoRaWAN\u0026rsquo;s Adaptive Data Rate (ADR) algorithm. The ADR is an algorithm which supports over-the-air and dynamic configuration of the EDs transmission parameters. We propose in this thesis, to optimize the ADR in order to reduce the TOA of the EDs to the minimum required.\u003c/p\u003e","title":"Thesis defense — Ulysse Coutaud — December 7"},{"content":"The Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\nPhishing attacks (e.g.: discovering malicious domains, typosquatting, phishing attacks against financial institutions, etc.) Denial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications) Cybercrime (e.g.: bulletproof hosting providers) IoT Honeypots If you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact Maciej Korczynski [maciej.korczynski at univ-grenoble-alpes.fr]. We can meet to discuss and potentially define an internship project. International students are encouraged to apply. You may also be able to go on to a PhD in the Drakkar team after your internship, or find a job at one of the security organizations we work closely with.\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/internships-in-cybersecurity-20212022-m1m2-students/","section":"Join us","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003ePhishing  attacks  (e.g.:  discovering  malicious  domains,  typosquatting,  phishing  attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g.: bulletproof hosting providers)\u003c/li\u003e\n\u003cli\u003eIoT Honeypots\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczynski\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr].  We  can  meet  to  discuss  and  potentially  define  an internship  project.  International  students  are  encouraged  to  apply.  You may also be able to go on to a PhD in the Drakkar team after your internship, or find a job at one of the security organizations we work closely with.\u003c/p\u003e","title":"Internships in Cybersecurity 2021/2022 (M1/M2 students)"},{"content":"Advisors # Henry-Joseph Audéoud, LIG / POLARIS — henry-joseph.audeoud@univ-grenoble-alpes.fr Etienne Dublé, LIG / PIMLIG — etienne.duble@imag.fr Context #Compression is a well-known technique for increasing the available bandwidth on slow networks.\nWhile working on the implementation of a Network File System, we have designed a preliminary algorithm that modulates the compression level given the available network bandwidth:\nwhen bandwidth is low, it makes sense to compress data to increase application-level throughput; when bandwidth is high, it does not make sense to spend CPU time on compression; at intermediate bandwidths, the compression level should be fine-tuned; under high CPU load (from other such connections, or from an unrelated workload), the compression level may be carefully decreased. The current algorithm is based on zstd compression. It tries to select an appropriate compression level by considering the trade-off between CPU and network usage. Compressing more makes sense when the network is the bottleneck, and compressing less when the CPU is.\nResearch objective #The objective of this internship is to develop a dynamic compression algorithm, probably building on the current implementation, and to measure what such a technique actually gains. The results should be compared with the state of the art, and should establish performance objectives and the parameters of the context they hold in. Ideally the intern would also study how the algorithm\u0026rsquo;s internal parameters affect it, possibly find a way to auto-tune them, and study the effect of simultaneous connections.\nWork items #The work will involve:\nexplore the state of the art on static and dynamic compression over TCP connections; from that, define a simple experimental testbed to measure how effective compression over TCP is: define the parameters of the links the tests are to run on (real bandwidth, latency, and so on), define the types of data to test transmission on, define the performance criteria (CPU load, payload bandwidth), write a simple proof-of-concept program that adjusts the compression rate to the available bandwidth; analyze the results and compare them with the state of the art. The work may then extend to related topics, to find where it can be improved. How can the algorithm adapt to CPU load, so as to handle many links compressing at once? Can its internal parameters be fine-tuned — for instance to adapt quickly to a change in available bandwidth?\nReferences # Discussions about adapting zstd compression to bandwidth: https://github.com/facebook/zstd/issues/75 https://github.com/facebook/zstd/pull/1327 ","date":null,"permalink":"https://drakkar.imag.fr/join/internships/dynamic-compression-rate-over-tcp-connections/","section":"Join us","summary":"\u003ch3 id=\"advisors\" class=\"relative group\"\u003eAdvisors \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#advisors\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cul\u003e\n\u003cli\u003eHenry-Joseph Audéoud, LIG / POLARIS — \u003ca href=\"mailto:henry-joseph.audeoud@univ-grenoble-alpes.fr\"\u003ehenry-joseph.audeoud@univ-grenoble-alpes.fr\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003eEtienne Dublé, LIG / PIMLIG — \u003ca href=\"mailto:etienne.duble@imag.fr\"\u003eetienne.duble@imag.fr\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3 id=\"context\" class=\"relative group\"\u003eContext \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#context\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eCompression is a well-known technique for increasing the available bandwidth on slow networks.\u003c/p\u003e\n\u003cp\u003eWhile working on the implementation of a Network File System, we have designed a preliminary algorithm that modulates the compression level given the available network bandwidth:\u003c/p\u003e","title":"Dynamic compression rate over TCP connections"},{"content":"The Drakkar research group at LIG Lab is looking for M1 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\nDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications) Phishing attacks (e.g.: discovering malicious domains, typosquatting, phishing attacks against financial institutions, etc.) Cybercrime (e.g.: bulletproof hosting providers) If you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact Maciej Korczyński [maciej.korczynski at univ-grenoble-alpes.fr]. We can meet to discuss and potentially define an internship project. International students are encouraged to apply.\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/internships-in-cybersecurity-20202021/","section":"Join us","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003ePhishing attacks (e.g.: discovering malicious domains, typosquatting, phishing attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g.: bulletproof hosting providers)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczyński\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr]. We can meet to discuss and potentially define an internship project. International students are encouraged to apply.\u003c/p\u003e","title":"Internships in Cybersecurity 2020/2021"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/projects/national/slices-fr/","section":"Projects","summary":"","title":"SLICES-FR – since 2020"},{"content":"The Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\nDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications) Phishing attacks (e.g.: discovering malicious domains, typo squatting, phishing attacks against financial institutions, etc.) Economics of cybersecurity (e.g. why attackers tend to register malicious domains rather than compromising vulnerable websites) Cybercrime (e.g.: bulletproof hosting providers) If you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact Maciej Korczyński [maciej.korczynski at univ-grenoble-alpes.fr], send your CV and explain your motivation. We can meet to discuss and potentially define an internship project. International students are encouraged to apply. A doctoral position may be available at the end of the internship, so that the intern can carry the work on as a PhD student.\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/internships-in-cybersecurity-20192020/","section":"Join us","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003ePhishing attacks (e.g.: discovering malicious domains, typo squatting, phishing attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eEconomics of cybersecurity (e.g. why attackers tend to register malicious domains rather than compromising vulnerable websites)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g.: bulletproof hosting providers)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczyński\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr], send your CV and explain your motivation. We can meet to discuss and potentially define an internship project. International students are encouraged to apply. A doctoral position may be available at the end of the internship, so that the intern can carry the work on as a PhD student.\u003c/p\u003e","title":"Internships in Cybersecurity 2019/2020"},{"content":"Security for the Internet of Things: A bottom-up approach to the secure and standardized Internet of Things #Soutenance prévue le jeudi 19 décembre 2019 à 14h dans la salle de séminaire 1 du bâtiment IMAG, 700 avenue Centrale, Domaine universitaire, 38400 Saint Martin d’Hères.\nAbstract #The rapid expansion of the IoT has unleashed a tidal wave of cheap Internet-connected hardware. For many of these products, security was merely an afterthought. Due to their advanced sensing and actuating functionalities, poorly-secured IoT devices endanger the privacy and safety of their users. While the IoT contains hardware with varying capabilities, in this work, we primarily focus on the constrained IoT. The restrictions on energy, computational power, and memory limit not only the processing capabilities of the devices but also their capacity to protect their data and users from attacks. To secure the IoT, we need several building blocks. We structure them in a bottom-up fashion where each block provides security services to the next one.\nThe first cornerstone of the secure IoT relies on hardware-enforced mechanisms. Various security features, such as secure boot, remote attestation, and over-the-air updates, rely heavily on its support. Since hardware security is often expensive and cannot be applied to legacy systems, we alternatively discuss software-only attestation. It provides a trust anchor to remote systems that lack hardware support. In the setting of remote attestation, device identification is paramount. Hence, we dedicated a part of this work to the study of physical device identifiers and their reliability.\nThe IoT hardware also frequently provides support for the second building block: cryptography. It is used abundantly by all the other security mechanisms, and recently much research has focussed on lightweight cryptographic algorithms. We studied the performance of the recent lightweight cryptographic algorithms on constrained hardware.\nA third core element for the security of the IoT is the capacity of its networking stack to protect the communications. We demonstrate that several optimization techniques expose vulnerabilities. For example, we show how to set up a covert channel by exploiting the tolerance of the Bluetooth LE protocol towards the naturally occurring clock drift. It is also possible to mount a denial-of-service attack that leverages the expensive network join phase. As a defense, we designed an algorithm that almost completely alleviates the overhead of network joining.\nThe last building block we consider is security architectures for the IoT. They guide the secure integration of the IoT with the traditional Internet. We studied the IETF proposal concerning the constrained authentication and authorization framework, and we propose two adaptations that aim to improve its security. Finally, the deployment of the IETF architecture heavily depends on the security of the underlying communication protocols. In the future, the IoT will mainly use the object security paradigm to secure data in flight. However, until these protocols are widely supported, many IoT products will rely on traditional security protocols, i.e., TLS and DTLS. For this reason, we conducted a performance study of the most critical part of the protocols: the handshake phase. We conclude that while the DTLS handshake uses fewer packets to establish the shared secret, TLS outperforms DTLS in lossy networks.\n","date":"11 December 2019","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-timothy-claeys-19-decembre/","section":"News","summary":"\u003ch3 id=\"security-for-the-internet-of-things-a-bottom-up-approach-to-the-secure-and-standardized-internet-of-things\" class=\"relative group\"\u003eSecurity for the Internet of Things: A bottom-up approach to the secure and standardized Internet of Things \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#security-for-the-internet-of-things-a-bottom-up-approach-to-the-secure-and-standardized-internet-of-things\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le jeudi \u003cstrong\u003e19 décembre 2019 à 14h\u003c/strong\u003e dans la salle de séminaire 1 du bâtiment IMAG, 700 avenue Centrale, Domaine universitaire, 38400 Saint Martin d’Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe rapid expansion of the IoT has unleashed a tidal wave of cheap Internet-connected hardware. For many of these products, security was merely an afterthought. Due to their advanced sensing and actuating functionalities, poorly-secured IoT devices endanger the privacy and safety of their users. While the IoT contains hardware with varying capabilities, in this work, we primarily focus on the constrained IoT. The restrictions on energy, computational power, and memory limit not only the processing capabilities of the devices but also their capacity to protect their data and users from attacks. To secure the IoT, we need several building blocks. We structure them in a bottom-up fashion where each block provides security services to the next one.\u003c/p\u003e","title":"Thesis defense — Timothy Claeys — December 19"},{"content":" Position: PhD at Grenoble INP Contract: fixed-term 3 years, gross salary 21,447 €/year Start date: November 1, 2019 Location: Grenoble, Rhône-Alpes, France Hosting institution: LIG laboratory, Grenoble Institute of Technology Supervisor: Andrzej Duda and Maciej Korczynski Application deadline: September 30, 2019 Context\nThe candidate will join DiNS, a research project recently funded by the ANR, the French National Research Agency. DiNS aims to break down the silos in IoT networks and making them seamlessly interoperable with the Internet by taking advantage of advanced DNS schemes and extensions.\nExpected work\nWe will start with the design of an overall architecture for scalable IoT naming and resolution schemes. To address security challenges, we propose to provide strict security guarantees for DNS names based on DNSSEC (DNS Security Extensions) and DANE (DNS-Based Authentication of Named Entities). The idea is to design a secure scheme for identifiers of IoT devices and support scalable key distribution for authentication. The project will also explore IoT discovery: how to represent the characteristics of IoT devices in DNS names to enable rich queries on devices and the data they generate. Finally, we will design a name resolution scheme allowing roaming between multi-tenant networks in much the way eduroam does. We plan to validate this architecture initially on LoRa and extend it for NB-IoT and future 5G MTC (Machine Type Communications) networks.\nSkills \u0026amp; Expertise\nThe position requires strong competences in TCP/IP networking, DNS, cybersecurity, and IoT. The candidate needs to have excellent written and oral communication skills in English. Research experience in the field of networking or security is a plus.\nThe candidate must have a master’s degree (or equivalent) in computer science or telecommunications with excellent results. We are looking for someone highly motivated to do research, who enjoys working in an international team.\nLocation and Institution\nLIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with efficient public transportation and dedicated bikeways.\nGrenoble Institute of Technology is one of the leading European technical universities, at the heart of innovation for more than a century. With its solid combination of teaching, research, and business promotion, Grenoble Institute of Technology plays a key role in making Grenoble one of the most attractive scientific and industrial locations worldwide.\nLIG laboratory is a Joint Research Center of Grenoble Institute of Technology, CNRS (French national scientific research center), Inria, and the Université Grenoble Alpes.\nThe Drakkar team investigates all aspects of networking and explores new opportunities opened by all-IP networks, in particular, the development of future wireless networks and the integration of Sensors and Smart Objects within the Internet of Things. We also work on traffic measurement and monitoring, and network security. https://drakkar.imag.fr\nLIG has just moved to the brand new IMAG building, thus offering a very good work environment. https://batiment.imag.fr\nHow to Apply \u0026amp; Contact Information\nApplicants should send a detailed curriculum vitae along with a letter of application, your most recent degree certificate, transcripts for undergraduate and graduate studies to Andrzej.Duda@imag.fr. The mail subject must start with \u0026ldquo;[PhD DiNS]\u0026rdquo;. References or letters of recommendation will be appreciated.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/phd-position-on-dns-naming-and-services-for-secure-seamless-iot-grenoble-institute-of-technology/","section":"Join us","summary":"PhD position on DNS Naming and Services for Secure Seamless IoT Grenoble Institute of Technology","title":"PhD position on DNS Naming and Services for Secure Seamless IoT, Grenoble Institute of Technology"},{"content":"Ubiquitous communications for smart city networks #The defence will take place on Wednesday 10 July 2019 at 14:00 in the auditorium of the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #Wi-Fi is everywhere in cities, whether through the growing number of public access points, or the massive private access points deployment, in the form of set-top boxes for the major part. If we assume that all these access points are usable in order to allow any device to access the Internet, then we would potentially have network coverage throughout the city. This assumption led us to wonder if Wi-Fi could be used as a city-wide network. This network could, more specifically, be used in a context of mobility. However, Wi-Fi was not designed to manage mobile users, and devices have too often change their access points when they no longer have connectivity. This mechanism, called handover, can be long because devices must first detect their connectivity losses before they can start looking for the next access point to associate with. It can be particularly long for devices such as smartphones because they are energy constrained and therefore do not apply an aggressive handover policy. In this context we tried to characterize the possible Wi-Fi applications for a moving user, considering the handover duration, the user speed and the access points density in the city. We found that for slow-moving users, the impact of the handover is small compared to the their overall connectivity. This allows them to use bandwidth-intensive applications as long as they are to some extent delay-tolerant. However, when the user’s speed increases, the impact of handover’s duration gradually degrades the user’s connectivity, so that high speed users can no longer expect to use different access points. Fast moving devices spend more time performing handovers with new access points than transmitting application data. Retransmissions play an important role in the duration of handover. In order to study in detail the retransmissions in 802.11, we have set up a testbed allowing us to observe the sequences of retransmitted messages using different implementations of 802.11 when we suddenly make the access point disappear. We compared these sequences with the one described in the standard, and we found that the maximum number of retransmissions as well as the growth in the contention window were not respected. In addition, these implementations spend a lot of time trying to retransmit before initiating their handover procedures. Retransmissions are also used in the rate control algorithms to determine if the link is deteriorating. However, during contention, the number of losses increases with the higher probability of collisions. In order to observe the impact of retransmissions on the rate control algorithms during contention, we have set up a testbed composed of about thirty identical stations. We found that the rate control algorithm used underperforms compared to the use of a single modulation. Finally, we proposed a geographical addressing scheme compliant with the Internet infrastructure. It allows to obtain both a hierarchical division of the world, and a hierarchical prefix for the addresses, similar to the one used in the CIDR format. We show that this addressing scheme can be used in multicast addresses to send messages to specific geographical areas (minimum area of one square meter).\nThe full text is available on HAL: tel-02341839.\n","date":"10 July 2019","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-pierre-brunisholz-10-juillet/","section":"News","summary":"\u003ch3 id=\"ubiquitous-communications-for-smart-city-networks\" class=\"relative group\"\u003eUbiquitous communications for smart city networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#ubiquitous-communications-for-smart-city-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on \u003cstrong\u003eWednesday 10 July 2019 at 14:00\u003c/strong\u003e in the auditorium of the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eWi-Fi is everywhere in cities, whether through the growing number of public access points, or the massive private access points deployment, in the form of set-top boxes for the major part. If we assume that all these access points are usable in order to allow any device to access the Internet, then we would potentially have network coverage throughout the city. This assumption led us to wonder if Wi-Fi could be used as a city-wide network. This network could, more specifically, be used in a context of mobility. However, Wi-Fi was not designed to manage mobile users, and devices have too often change their access points when they no longer have connectivity. This mechanism, called handover, can be long because devices must first detect their connectivity losses before they can start looking for the next access point to associate with. It can be particularly long for devices such as smartphones because they are energy constrained and therefore do not apply an aggressive handover policy. In this context we tried to characterize the possible Wi-Fi applications for a moving user, considering the handover duration, the user speed and the access points density in the city. We found that for slow-moving users, the impact of the handover is small compared to the their overall connectivity. This allows them to use bandwidth-intensive applications as long as they are to some extent delay-tolerant. However, when the user’s speed increases, the impact of handover’s duration gradually degrades the user’s connectivity, so that high speed users can no longer expect to use different access points. Fast moving devices spend more time performing handovers with new access points than transmitting application data. Retransmissions play an important role in the duration of handover. In order to study in detail the retransmissions in 802.11, we have set up a testbed allowing us to observe the sequences of retransmitted messages using different implementations of 802.11 when we suddenly make the access point disappear. We compared these sequences with the one described in the standard, and we found that the maximum number of retransmissions as well as the growth in the contention window were not respected. In addition, these implementations spend a lot of time trying to retransmit before initiating their handover procedures. Retransmissions are also used in the rate control algorithms to determine if the link is deteriorating. However, during contention, the number of losses increases with the higher probability of collisions. In order to observe the impact of retransmissions on the rate control algorithms during contention, we have set up a testbed composed of about thirty identical stations. We found that the rate control algorithm used underperforms compared to the use of a single modulation. Finally, we proposed a geographical addressing scheme compliant with the Internet infrastructure. It allows to obtain both a hierarchical division of the world, and a hierarchical prefix for the addresses, similar to the one used in the CIDR format. We show that this addressing scheme can be used in multicast addresses to send messages to specific geographical areas (minimum area of one square meter).\u003c/p\u003e","title":"Thesis defense — Pierre Brunisholz — July 10"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/takwa-attia/","section":"Members","summary":"","title":"Takwa Attia"},{"content":"Cybersecurity Institute at Univ. Grenoble Alpes, Software and Intelligent Systems (LSI) Carnot Institute and Grenoble Informatics Laboratory (LIG) invite applications for a PhD Student position in the area of measurements for cybersecurity and Domain Name System (DNS) abuse.\nPosition: PhD Student Université Grenoble Alpes Contract: fixed-term 36 months Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: Drakkar group, LIG Laboratory, Université Grenoble Alpes Scientific advisors: Maciej Korczyński and Andrzej Duda @LIG/UGA Project partners: Cybersecurity Institute at Univ. Grenoble Alpes, LSI Carnot Institute and ICANN Application deadline: 31/07/2019 (applications submitted after the deadline will be evaluated until the position is filled) Job description\nThe candidate will join a research project about cybersecurity and domain name abuse. The goal of the project is to develop large-scale Internet measurement and classification/statistical methods in the fight against Internet-scale attacks, such as phishing, malware drive-by-downloads, and spam. The successful candidate will collect and statistically analyze empirical data, and will work on real-world security problems that will help operators such as domain registries and hosting providers to effectively mitigate security incidents. The candidate will study the behavior of malicious actors and of potential victims of cybersecurity incidents and will design secure systems and propose effective policies to prevent domain name abuse. The PhD student will collaborate with researchers from the Internet Corporation for Assigned Names and Numbers (ICANN), domain registry operators, and security organizations.\nThe PhD student will be part of a team working on worldwide measurements of cyber crime, network attacks and IoT security. We have collaborated on projects with industry players such as AFNIC, SIDN Labs, ICANN, law enforcement or STMicroelectronics. We offer an excellent working environment, strong support for personal development and career planning, cutting-edge research topics, and strong industry collaborations.\nSkills and Expertise\nThe position requires strong competences in programming (Python, C/C++, R/MATLAB) and excellent written and oral communication skills in English. Research experience in the field of network security and data analytics is a plus, as is industry experience as a software engineer.\nThe candidate must have a master’s degree (or equivalent) in network or information security, computer science, telecommunication engineering or in a related study with excellent results. The candidate must be strongly motivated to do research, and enjoy working in an international team.\nLocation and Hosting Institution\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France’s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bike ways.\nThe Drakkar group investigates various aspects of network protocols, cybersecurity, Internet-scale measurements and multimedia applications. The LIG lab has just moved to the brand new IMAG building, thus offering a very high standard work environment.\nFunding Institutions\nThe Grenoble Alps Cybersecurity Institute sets out to undertake ground-breaking interdisciplinary research in order to address cybersecurity and privacy challenges. The main technical focus is on low-cost secure elements, critical infrastructures, vulnerability analysis and validation of large systems, including practical resilience across the industry and the society. The approach to cybersecurity is holistic, encompassing technical, legal, law-enforcement, economic, social, and intelligence-related aspects with strong partnerships with the private sector and national and international cooperation with leading institutions in France and abroad.\nThe Software and Intelligent Systems (LSI) Carnot Institute groups together ten world-class university teams and laboratories in Grenoble within the digital sector. Its research teams are heavily immersed in the industrial and socio-economic fabric of the Auvergne Rhône-Alpes region. The Institute works closely with local stakeholders through a research-industry interface and a development hub to provide an efficient response to the expectations of both SMEs and intermediate-sized enterprises.\nThe proposed research project is at the heart of the themes of Grenoble Alps Cybersecurity Institute and LSI Carnot Institute.\nHow to Apply and Contact Information\nApplicants should send a detailed curriculum vitae along with a letter of application, your most recent degree certificate, transcripts for undergraduate and graduate studies to maciej.korczynski@univ-grenoble-alpes.fr. Email subject must start with \u0026ldquo;[DNS abuse]\u0026rdquo;. References or letters of recommendation are appreciated.\n","date":"24 June 2019","permalink":"https://drakkar.imag.fr/news/closed-phd-offer-in-the-area-of-measurements-for-cybersecurity/","section":"News","summary":"\u003cp\u003eCybersecurity Institute at Univ. Grenoble Alpes, Software and Intelligent Systems (LSI) Carnot Institute and Grenoble Informatics Laboratory (LIG) invite applications for a PhD Student position in the area of measurements for cybersecurity and Domain Name System (DNS) abuse.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003ePosition: PhD Student Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eContract: fixed-term 36 months\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: Drakkar group, LIG Laboratory, Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eScientific advisors: Maciej Korczyński and Andrzej Duda @LIG/UGA\u003c/li\u003e\n\u003cli\u003eProject partners: Cybersecurity Institute at Univ. Grenoble Alpes, LSI Carnot Institute and ICANN\u003c/li\u003e\n\u003cli\u003eApplication deadline: 31/07/2019 (applications submitted after the deadline will be evaluated until the position is filled)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eJob description\u003c/strong\u003e\u003c/p\u003e","title":"CLOSED: PhD offer in the area of measurements for cybersecurity"},{"content":"Cybersecurity Institute at Univ. Grenoble Alpes, Software and Intelligent Systems (LSI) Carnot Institute and Grenoble Informatics Laboratory (LIG) invite applications for a PhD Student position in the area of measurements for cybersecurity and Domain Name System (DNS) abuse.\nPosition: PhD Student Université Grenoble Alpes Contract: fixed-term 36 months Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: Drakkar group, LIG Laboratory, Université Grenoble Alpes Scientific advisors: Maciej Korczyński and Andrzej Duda @LIG/UGA Project partners: Cybersecurity Institute at Univ. Grenoble Alpes, LSI Carnot Institute and ICANN Application deadline: 31/07/2019 (applications submitted after the deadline will be evaluated until the position is filled) Job description\nThe candidate will join a research project about cybersecurity and domain name abuse. The goal of the project is to develop large-scale Internet measurement and classification/statistical methods in the fight against Internet-scale attacks, such as phishing, malware drive-by-downloads, and spam. The successful candidate will collect and statistically analyze empirical data, and will work on real-world security problems that will help operators such as domain registries and hosting providers to effectively mitigate security incidents. The candidate will study the behavior of malicious actors and of potential victims of cybersecurity incidents and will design secure systems and propose effective policies to prevent domain name abuse. The PhD student will collaborate with researchers from the Internet Corporation for Assigned Names and Numbers (ICANN), domain registry operators, and security organizations.\nThe PhD student will be part of a team working on worldwide measurements of cyber crime, network attacks and IoT security. We have collaborated on projects with industry players such as AFNIC, SIDN Labs, ICANN, law enforcement or STMicroelectronics. We offer an excellent working environment, strong support for personal development and career planning, cutting-edge research topics, and strong industry collaborations.\nSkills and Expertise\nThe position requires strong competences in programming (Python, C/C++, R/MATLAB) and excellent written and oral communication skills in English. Research experience in the field of network security and data analytics is a plus, as is industry experience as a software engineer.\nThe candidate must have a master’s degree (or equivalent) in network or information security, computer science, telecommunication engineering or in a related study with excellent results. The candidate must be strongly motivated to do research, and enjoy working in an international team.\nLocation and Hosting Institution\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France’s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bike ways.\nThe Drakkar group investigates various aspects of network protocols, cybersecurity, Internet-scale measurements and multimedia applications. The LIG lab has just moved to the brand new IMAG building, thus offering a very high standard work environment.\nFunding Institutions\nThe Grenoble Alps Cybersecurity Institute sets out to undertake ground-breaking interdisciplinary research in order to address cybersecurity and privacy challenges. The main technical focus is on low-cost secure elements, critical infrastructures, vulnerability analysis and validation of large systems, including practical resilience across the industry and the society. The approach to cybersecurity is holistic, encompassing technical, legal, law-enforcement, economic, social, and intelligence-related aspects with strong partnerships with the private sector and national and international cooperation with leading institutions in France and abroad.\nThe Software and Intelligent Systems (LSI) Carnot Institute groups together ten world-class university teams and laboratories in Grenoble within the digital sector. Its research teams are heavily immersed in the industrial and socio-economic fabric of the Auvergne Rhône-Alpes region. The Institute works closely with local stakeholders through a research-industry interface and a development hub to provide an efficient response to the expectations of both SMEs and intermediate-sized enterprises.\nThe proposed research project is at the heart of the themes of Grenoble Alps Cybersecurity Institute and LSI Carnot Institute.\nHow to Apply and Contact Information\nApplicants should send a detailed curriculum vitae along with a letter of application, your most recent degree certificate, transcripts for undergraduate and graduate studies to maciej.korczynski@univ-grenoble-alpes.fr. Email subject must start with \u0026ldquo;[DNS abuse]\u0026rdquo;. References or letters of recommendation are appreciated.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/phd-offer-in-the-area-of-measurements-for-cybersecurity/","section":"Join us","summary":"\u003cp\u003eCybersecurity Institute at Univ. Grenoble Alpes, Software and Intelligent Systems (LSI) Carnot Institute and Grenoble Informatics Laboratory (LIG) invite applications for a PhD Student position in the area of measurements for cybersecurity and Domain Name System (DNS) abuse.\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003ePosition: PhD Student Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eContract: fixed-term 36 months\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: Drakkar group, LIG Laboratory, Université Grenoble Alpes\u003c/li\u003e\n\u003cli\u003eScientific advisors: Maciej Korczyński and Andrzej Duda @LIG/UGA\u003c/li\u003e\n\u003cli\u003eProject partners: Cybersecurity Institute at Univ. Grenoble Alpes, LSI Carnot Institute and ICANN\u003c/li\u003e\n\u003cli\u003eApplication deadline: 31/07/2019 (applications submitted after the deadline will be evaluated until the position is filled)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eJob description\u003c/strong\u003e\u003c/p\u003e","title":"PhD offer in the area of measurements for cybersecurity"},{"content":"Visiting researcher, 2018–2019\n","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/mehmet-tahir-sand%C4%B1kkaya/","section":"Members","summary":"\u003cp\u003eVisiting researcher, 2018–2019\u003c/p\u003e","title":"Mehmet Tahir Sandıkkaya"},{"content":"The Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\nDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks) Internet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications) Phishing attacks (e.g.: discovering malicious domains, typo squatting, phishing attacks against financial institutions, etc.) Economics of cybersecurity (e.g. why attackers tend to register malicious domains rather than compromising vulnerable websites) Cybercrime (e.g.: bulletproof hosting providers) If you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact Maciej Korczyński [maciej.korczynski at univ-grenoble-alpes.fr], send your CV and explain your motivation. We can meet to discuss and potentially define an internship project. International students are encouraged to apply. A doctoral position may be available at the end of the internship, so that the intern can carry the work on as a PhD student.\n","date":"2 November 2018","permalink":"https://drakkar.imag.fr/news/les-stages-20192020/","section":"News","summary":"\u003cp\u003eThe Drakkar research group at LIG Lab is looking for M1/M2 interns. Some of the topics addressed by our team are strongly related to empirical aspects of cybersecurity and would allow you to work on subjects such as:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eDenial-of-Service attacks and defenses (e.g.: prevention, discovering protocols and networks enabling attacks)\u003c/li\u003e\n\u003cli\u003eInternet-wide vulnerability scanning (e.g.: building tools to search for vulnerabilities, vulnerability notifications)\u003c/li\u003e\n\u003cli\u003ePhishing attacks (e.g.: discovering malicious domains, typo squatting, phishing attacks against financial institutions, etc.)\u003c/li\u003e\n\u003cli\u003eEconomics of cybersecurity (e.g. why attackers tend to register malicious domains rather than compromising vulnerable websites)\u003c/li\u003e\n\u003cli\u003eCybercrime (e.g.: bulletproof hosting providers)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIf you are motivated and have a background in any of the topics listed above, or other areas of cybersecurity and you’d like to propose your own subject, please contact \u003ca href=\"http://mkorczynski.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMaciej Korczyński\u003c/a\u003e [maciej.korczynski at univ-grenoble-alpes.fr], send your CV and explain your motivation. We can meet to discuss and potentially define an internship project. International students are encouraged to apply. A doctoral position may be available at the end of the internship, so that the intern can carry the work on as a PhD student.\u003c/p\u003e","title":"Internships 2019/2020"},{"content":"Study of adaptation mechanisms of the wireless sensor nodes to the context for ultra-low power consumption #Soutenance prévue le jeudi 25 octobre 2018 à 14h au bâtiment IMAG, 700 avenue Centrale, Domaine universitaire, 38400 Saint Martin d’Hères - Salle de séminaire 2\nAbstract #The Internet of Things (IoT) is announced as the next big technological revolution where billions of devices will interconnect using Internet technologies and let users interact with the physical world, allowing Smart Home, Smart Cities, smart everything. Wireless Sensor Network are crucial for turning the vision of IoT into a reality, but for this to come true, many of these devices need to be autonomous in energy. Hence, one major challenge is to provide multi-year lifetime while powered on batteries or using harvested energy. Bluetooth Low Energy has shown higher energy efficiency and robustness than other well known WSN protocols, making it a strong candidate for implementation in IoT scenarios. Additionally, BLE is present in almost every smartphone, turning it into perfect ubiquitous remote control for smart homes, buildings or cities. Nevertheless, BLE performance improvement for typical IoT use cases, where battery lifetime should reach many years, is still necessary.\nIn this work we evaluated Bluetooth Low Energy performance in terms of latency and energy consumption based on analytical models in order to optimize its performance and obtain its maximum level of energy efficiency without modification of the specification in a first place. For this purpose, we proposed a scenarios classification as well as modes of operation for each scenario. Energy efficiency is achieved for each mode of operation by optimizing the parameters that are assigned to the Bluetooth Low Energy nodes during the neighbor discovery phase. This optimization of the parameters was made based on an energy model extracted from the state of the art. The model, in turn, has been optimized to obtain latency and energy consumption regardless of the behavior of the nodes at different levels: application and communication. Since a node can be the central device at one level, while it can be the peripheral device at the other level at the same time, which affects the final performance of the nodes.\nIn addition, a novel battery lifetime estimation model was presented to show the actual impact that energy consumption optimization have on nodes lifetime in a fast (in terms of simulation time) and realistic way (by taking into account empirical data). Performance results were obtained in our Matlab based simulator based on OOP paradigm, through the use of several IoT test cases. In addition, the latency model used for our investigation was experimentally validated as well as the proposed parameter optimization, showing a high accuracy.\nAfter obtaining the best performance possible of Bluetooth Low Energy without modification of the specification, we evaluated the protocol performance when implementing the concept of Wake-Up radio, which is an ultra low power receiver in charge on sensing the communication channel, waiting for a signal addressed to the node and then wake the main radio up. Thus, the main radio which consumes higher energy, can remain in sleep mode for long periods of time and switch to an active mode only for packet reception, therefore saving considerable amount of energy. We demonstrated that Bluetooth Low Energy lifetime can be significantly increased by implementing a Wake-Up radio and we propose a modification of the protocol in order to render this protocol compatible with an operating mode which includes a Wake-Up radio. For this, we studied the Wake-Up radio state of the art and evaluated Bluetooth Low Energy devices lifetime when a selected Wake-Up radio is implemented at the master side.\n","date":"17 October 2018","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-andreina-liendo-25-octobre/","section":"News","summary":"\u003ch3 id=\"study-of-adaptation-mechanisms-of-the-wireless-sensor-nodes-to-the-context-for-ultra-low-power-consumption\" class=\"relative group\"\u003eStudy of adaptation mechanisms of the wireless sensor nodes to the context for ultra-low power consumption \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#study-of-adaptation-mechanisms-of-the-wireless-sensor-nodes-to-the-context-for-ultra-low-power-consumption\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le jeudi \u003cstrong\u003e25 octobre 2018 à 14h\u003c/strong\u003e au bâtiment IMAG, 700 avenue Centrale, Domaine universitaire, 38400 Saint Martin d’Hères - Salle de séminaire 2\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe Internet of Things (IoT) is announced as the next big technological revolution where billions of devices will interconnect using Internet technologies and let users interact with the physical world, allowing \u003cem\u003eSmart Home\u003c/em\u003e, \u003cem\u003eSmart Cities\u003c/em\u003e, smart everything. Wireless Sensor Network are crucial for turning the vision of IoT into a reality, but for this to come true, many of these devices need to be autonomous in energy. Hence, one major challenge is to provide multi-year lifetime while powered on batteries or using harvested energy. Bluetooth Low Energy has shown higher energy efficiency and robustness than other well known WSN protocols, making it a strong candidate for implementation in IoT scenarios. Additionally, BLE is present in almost every smartphone, turning it into perfect ubiquitous remote control for smart homes, buildings or cities. Nevertheless, BLE performance improvement for typical IoT use cases, where battery lifetime should reach many years, is still necessary.\u003c/p\u003e","title":"Thesis defense — Andreina Liendo — October 25"},{"content":"SIDN Labs, Afnic Labs, and Grenoble Alps University will be starting a new research project called “Classification of compromised versus maliciously registered domains” (COMAR) on 1 October 2018. The Franco-Dutch project will address the problem of automatically distinguishing between domain names registered by cybercriminals for the purpose of malicious activities, and domain names exploited through vulnerable web applications. The project is designed to help intermediaries such as registrars and ccTLD registries further optimize their anti-abuse processes.\nDomain name abuse\nDomain names are easy to use shorthands for IP addresses that help us navigate the many online services that we use in our daily lives. While the vast majority of domain name registration and use is benign, there are cybercriminals who unfortunately misuse them, for instance to launch large-scale phishing attacks, drive-by-downloads, and spam campaigns. Security organizations such as the Anti-Phishing Working Group (APWG) and Stop Badware collect information about these misused domain names and make it available to their customers (e.g., hosting providers and domain name registries) in the form of URL blacklists.\nCompromised vs. maliciously registered\nBoth the operational and research communities distinguish two types of domain name abuse: legitimate domains that criminals have compromised and new domain names that have been specifically registered for malicious purposes. An example of a compromised domain name is studentflats.gr, which is a legitimate site that ran a Wordpress installation and that cybercriminals hacked to host a banking-related phishing site. This is visible in the blacklisted URL (http://studentflats.gr/wp-content/uploads/2016/.co.nz/login/personal-banking/login/auth_security.php), which has an illegally installed banking script (/uploads/…/auth_security.php) underneath the Wordpress directory (/wp-content). An example of a maliciously registered domain name is continue-details.com, which was used for a Paypal phishing site. This is visible in the blacklisted URL (http://paypal.com.login.continue-details.com/), which does not explicitly contain a malicious program such as a PHP script, but instead refers to a site specifically set up for the phish using a 5th level domain name (continue-details.com being the first and second levels and paypal.com.login. adding three more levels). The distinction between these two groups is critical because they require different mitigation actions by different intermediaries. For example, hosting providers together with webmasters typically concentrate on cleaning up the content of compromised websites [3], whereas domain registries (e.g., SIDN and Afnic) and registrars tend to focus on handling malicious domain name registrations.\nBlacklist-based classification\nFrom an operational point of view, intermediaries typically use URL blacklists in their security systems to automatically block malicious content. However, a compromised domain name requires a more fine-grained level of mitigation. For example, if an intermediary simply blocks studentflats.gr, then it will also block the legitimate part of the site (the content the Wordpress installation is serving to visitors). So instead what is needed for a security engineer is to look at the site’s Wordpress installation and specifically (or automatically) remove the malicious PHP script from the hosting platform. This example illustrates that it is crucial to unambiguously label domains of blacklisted URLs as compromised or maliciously registered so they can be reliably used by security systems.\nThe ultimate goal of COMAR is to develop a machine learning-based classifier that labels blacklisted domains as compromised or maliciously registered, then extensively evaluate its accuracy, and implement it for a production-level environment. We also plan to study the attackers’ profit-maximizing behavior and their business models. We shall apply our classifier to unlabeled domain names of URL blacklists, for example, to answer the following question: do attackers prefer to register malicious domains, compromise vulnerable websites, or misuse domains of legitimate services such as cloud-based file-sharing services in their criminal activities?\nPartner capabilities and interests\nAll three COMAR partners have extensive experience in the analysis of large heterogeneous datasets and in engineering the underlying platforms. Grenoble Alps University will concentrate on the statistical analysis of large-scale Internet measurement and incident data and publishing scientific papers, whereas both registry Labs will focus on advancing the COMAR classifier for operational environments (e.g., at SIDN and Afnic) and making it available to their stakeholders such as .nl and .fr registrars. The complementary approach of this partnership is in line with the need for registries to continuously reinforce their capacities and capabilities to increase the security levels of their Top-level Domains (TLDs) and ultimately provide enhanced levels of trust for end-users.\nSourena Maroofi, a Ph.D. student at Grenoble Alps University, will develop and evaluate the COMAR classifier under the supervision of Maciej Korczyński, COMAR’s Principal Investigator. COMAR, funded by SIDN and Afnic, will start in October 2018 and will last for three years. The steering committee of the project consists of Cristian Hesselman (SIDN Labs), Benoît Ampeau (Afnic Labs), and Maciej Korczyński (Drakkar team, Grenoble INP, Grenoble Alps University).\nAbout COMAR partners\nCOMAR is a joint project of SIDN Labs, Afnic Labs, and Grenoble Alps University.\nSIDN Labs is the research team of SIDN, the registry of the .nl Top-Level Domain (TLD) in the Domain Name System (DNS). SIDN Labs’ goal is to increase the operational security and resilience of end-to-end Internet communications through world-class measurement-based research and technology development. Our research challenges include DNS and Internet security and resilience, and Internet evolution.\nAfnic Labs is a key team devoted to the development and future of the Internet at Afnic. Afnic manages the .fr and 5 others French overseas TLDs. Afnic is also the back-end registry for 14 companies and local and regional authorities that have chosen to have their own TLD suffix. Each day Afnic Labs initiates and contributes to projects in line with Afnic’s assignments: an Internet that is secure and stable, open to innovation and in which the French internet community plays a key role. Just as with other partnerships in which Afnic is involved, Afnic Labs believes in the added value of collaborative research work to ultimately provide a very high-valuable, mature, state-of-the-art classifier.\nGrenoble Alps University aims to establish a leading center in cybersecurity research in the Rhône-Alpes region in France with a particular focus on active and passive measurements for cybersecurity. The members of the Drakkar team have been involved in collaborative projects with law enforcement agencies, security and Internet policy organizations devoted to fighting cybercrime. Our focus is on the statistical analysis of large-scale Internet measurement and incident data to identify how cybercriminals misuse domain names and how providers of Internet services deal with security risks and incidents. The COMAR project is at the heart of these issues.\nProject website: www.comar-project.fr and www.comar-project.nl (available shortly).\nFurther reading\n\u0026ldquo;Cybercrime After the Sunrise: A Statistical Analysis of DNS Abuse in New gTLDs\u0026rdquo;, Maciej Korczynski, Maarten Wullink, Samaneh Tajalizadehkhoob, Giovane C.M. Moura, Arman Noroozian, Drew Bagley, Cristian Hesselman, in Proc. of ACM AsiaCCS, Korea, June 2018\n“Global Phishing Survey: Trends and Domain Name Use in 2016”, Greg Aaron and Rod Rasmussen”: Available at: http://docs.apwg.org/reports/APWG_Global_Phishing_Report_2015-2016.pdf, 2017\n“Herding Vulnerable Cats: A Statistical Approach to Disentangle Joint Responsibility for Web Security in Shared Hosting”, Samaneh Tajalizadehkhoob, Tom van Goethem, Maciej Korczyński, Arman Noroozian, Rainer Bohme, Tyler Moore, Wouter Joosen, Michel van Eeten, in Proc. of ACM CCS, October 2017\n","date":"4 October 2018","permalink":"https://drakkar.imag.fr/news/new-franco-dutch-research-project-on-automatic-classification-of-domain-name-abu/","section":"News","summary":"\u003cp\u003e\u003cstrong\u003eSIDN Labs, Afnic Labs, and Grenoble Alps University will be starting a new research project called “Classification of compromised versus maliciously registered domains” (COMAR) on 1 October 2018. The Franco-Dutch project will address the problem of automatically distinguishing between domain names registered by cybercriminals for the purpose of malicious activities, and domain names exploited through vulnerable web applications. The project is designed to help intermediaries such as registrars and ccTLD registries further optimize their anti-abuse processes.\u003c/strong\u003e\u003c/p\u003e","title":"New Franco-Dutch research project on automatic classification of domain name abuse"},{"content":"We have 1 Post-Doc/Engineer position open in the area of IoT LRWAN.\n","date":"26 April 2018","permalink":"https://drakkar.imag.fr/news/post-docresearch-engineer-short-term-position-on-lora/","section":"News","summary":"\u003cp\u003eWe have 1 \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/open-positions/\"\u003ePost-Doc/Engineer position\u003c/a\u003e open in the area of IoT LRWAN.\u003c/p\u003e","title":"Post-Doc/Research Engineer short-term position on LoRa"},{"content":"Grenoble INP/LIG Laboratory invites applications for a Post-doctoral/Research Engineer short-term position (6 months):\nDynamic Adaptation of LoRa Parameters\nThe goal is to analyze the parameters of LoRa influencing its performance and propose various strategies to adapt them to reduce energy consumption in different scenarios. Based on measurements of the adaptation strategies, we need to evaluate how they perform and propose cooperation between LoRa gateways to handle multiple LoRa motes.\nApplicants should have either a PhD or Master\u0026rsquo;s/Engineer degree in Computer Science with experience/knowledge in network protocols and wireless networks.\nPay grade depends on the level of the degree: 1900 euros gross for Master\u0026rsquo;s/Engineer and 2400 euros gross for PhD.\nApplicants should send a detailed CV and the names of two referees to Andrzej.Duda@imag.fr\nClosing date for applications: May 15, 2018\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/post-doctoralresearch-engineer-short-term-position-6-months-on-lora/","section":"Join us","summary":"\u003cp\u003eGrenoble INP/LIG Laboratory invites applications for a Post-doctoral/Research Engineer short-term position (6 months):\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic Adaptation of LoRa Parameters\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe goal is to analyze the parameters of LoRa influencing its performance and propose various strategies to adapt them to reduce energy consumption in different scenarios. Based on measurements of the adaptation strategies, we need to evaluate how they perform and propose cooperation between LoRa gateways to handle multiple LoRa motes.\u003c/p\u003e\n\u003cp\u003eApplicants should have either a PhD or Master\u0026rsquo;s/Engineer degree in Computer Science with experience/knowledge in network protocols and wireless networks.\u003c/p\u003e","title":"Post-doctoral/Research Engineer short-term position (6 months) on LoRa"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/projects/past/feder-use-iot/","section":"Projects","summary":"","title":"FEDER Use IoT"},{"content":"Interoperability of adaptive low power consumption communication protocol for sensor networks #The defence will take place on Tuesday 24 April 2018 at 14:00 in the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères — seminar room 2.\nAbstract #The growth of various technologies dedicated to sensor networks (WSN) has led to the development of platforms capable of operating in two different technologies, adaptive to transmission contexts. Such platforms open the door to the design of multi-technology networks, which we propose to exploit to reduce overall energy consumption. In order to exploit these multi-technology networks, we describe the main Internet of Things (IoT) technologies, comparing them on an equal footing thanks to the analyzer we developed, and classify them according to the MAC mechanisms they use. We then analyze the link between the application context (latency and frequency of data generation) and the MAC mechanism that consumes the least energy for this application context. We note that the technologies operating with a synchronous MAC mechanism are the most suitable for periodic application traffic with short intervals between data generation. For these traffic patterns, clock drift leads to extensive traffic overhead because of the need to actively maintain synchronization for sparse periodic traffic. Moreover, we notice that, in the existing solutions, the management of sparce application traffic management is based on the use of an always-on platform (in reception mode). We thus propose to exploit the multi-technology platforms to build a synchronous network in which each node distributes its activity over time to globally save energy by replacing the role of the always-on platform, while guaranteeing the delivery of the latency-constrained asynchronous traffic. We notice that during the synchronous network joining phase, the situation of the node attempting to join a synchronous network is similar to the situation of an asynchronous node wanting to deliver data through a synchronous network. Thus, we propose to exploit the synchronous network joining phase to route latency-constrained traffic originating from asynchronous nodes through the synchronous network. However, the currently standardised network attachment procedures are naïve and energy-greedy, which discourages the use of an asynchronous communication mode, based on a succession of network associations/dissociations: we thus propose two approaches to reduce the cost of the TSCH network attachment procedure. The first is based on the use of mathematical sequences wich distribute the periods of activity over time, while minimizing the impact on the latency of the procedure, in order to reduce the overall energy cost of the attachment procedure. The second proposed method exploits the acknowledgement frames (ACK) of TSCH data communications to embed the date of the next synchronization frame transmission on the same physical channel as the ACK frame. Thanks to the development of a simulator of the TSCH joining phase, we show that the proposed protocols achieve better performance, either in terms of joining latency, or in terms of overall energy consumption, than the standard joining protocols used in WSN.Finally, we propose to exploit the mechanisms of the second proposal for sending request frames to a node operating with an asynchronous technology, thus enabling asynchronous traffic to be routed through a synchronous network in bounded latency. We demonstrate the value and feasibility of such a proposal.\nThe full text is available on HAL: tel-01903194.\n","date":"17 April 2018","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-elodie-morin-24-avril/","section":"News","summary":"\u003ch3 id=\"interoperability-of-adaptive-low-power-consumption-communication-protocol-for-sensor-networks\" class=\"relative group\"\u003eInteroperability of adaptive low power consumption communication protocol for sensor networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#interoperability-of-adaptive-low-power-consumption-communication-protocol-for-sensor-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on \u003cstrong\u003eTuesday 24 April 2018 at 14:00\u003c/strong\u003e in the IMAG building, 700 avenue Centrale, Domaine universitaire, 38400 Saint-Martin-d\u0026rsquo;Hères — seminar room 2.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe growth of various technologies dedicated to sensor networks (WSN) has led to the development of platforms capable of operating in two different technologies, adaptive to transmission contexts. Such platforms open the door to the design of multi-technology networks, which we propose to exploit to reduce overall energy consumption. In order to exploit these multi-technology networks, we describe the main Internet of Things (IoT) technologies, comparing them on an equal footing thanks to the analyzer we developed, and classify them according to the MAC mechanisms they use. We then analyze the link between the application context (latency and frequency of data generation) and the MAC mechanism that consumes the least energy for this application context. We note that the technologies operating with a synchronous MAC mechanism are the most suitable for periodic application traffic with short intervals between data generation. For these traffic patterns, clock drift leads to extensive traffic overhead because of the need to actively maintain synchronization for sparse periodic traffic. Moreover, we notice that, in the existing solutions, the management of sparce application traffic management is based on the use of an always-on platform (in reception mode). We thus propose to exploit the multi-technology platforms to build a synchronous network in which each node distributes its activity over time to globally save energy by replacing the role of the always-on platform, while guaranteeing the delivery of the latency-constrained asynchronous traffic. We notice that during the synchronous network joining phase, the situation of the node attempting to join a synchronous network is similar to the situation of an asynchronous node wanting to deliver data through a synchronous network. Thus, we propose to exploit the synchronous network joining phase to route latency-constrained traffic originating from asynchronous nodes through the synchronous network. However, the currently standardised network attachment procedures are naïve and energy-greedy, which discourages the use of an asynchronous communication mode, based on a succession of network associations/dissociations: we thus propose two approaches to reduce the cost of the TSCH network attachment procedure. The first is based on the use of mathematical sequences wich distribute the periods of activity over time, while minimizing the impact on the latency of the procedure, in order to reduce the overall energy cost of the attachment procedure. The second proposed method exploits the acknowledgement frames (ACK) of TSCH data communications to embed the date of the next synchronization frame transmission on the same physical channel as the ACK frame. Thanks to the development of a simulator of the TSCH joining phase, we show that the proposed protocols achieve better performance, either in terms of joining latency, or in terms of overall energy consumption, than the standard joining protocols used in WSN.Finally, we propose to exploit the mechanisms of the second proposal for sending request frames to a node operating with an asynchronous technology, thus enabling asynchronous traffic to be routed through a synchronous network in bounded latency. We demonstrate the value and feasibility of such a proposal.\u003c/p\u003e","title":"Thesis defense — Élodie Morin — April 24"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/fadoua-hassen/","section":"Members","summary":"","title":"Fadoua Hassen"},{"content":"TU Delft\n","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/qasim-lone/","section":"Members","summary":"\u003cp\u003eTU Delft\u003c/p\u003e","title":"Qasim Lone"},{"content":"Persyval IoIT project-team\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-persyval-ioit/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://persyval-lab.org\" target=\"_blank\" rel=\"noreferrer\"\u003ePersyval\u003c/a\u003e \u003ca href=\"https://persyval-lab.org/en/sites/ioit\" target=\"_blank\" rel=\"noreferrer\"\u003eIoIT\u003c/a\u003e project-team\u003c/p\u003e","title":"ANR Persyval IoIT"},{"content":"We have 1 Post-Doc position open in the area of distributed algorithms for wireless sensor network.\n","date":"12 January 2018","permalink":"https://drakkar.imag.fr/news/post-doc-offer-in-the-area-of-distributed-algorithms-for-wireless-sensor-network/","section":"News","summary":"\u003cp\u003eWe have 1 \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/open-positions/\"\u003ePost-Doc position\u003c/a\u003e open in the area of distributed algorithms for wireless sensor network.\u003c/p\u003e","title":"Post-Doc offer in the area of distributed algorithms for wireless sensor network"},{"content":" Position: Post-Doc Contract: 10 months maximum Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: LIG and VERIMAG laboratories, Université Grenoble Alpes, Grenoble Institute of Technology Scientific advisors: Olivier Alphand, Franck Rousseau @LIG/UGA, Karine Altisen, Stéphane Devismes @VERIMAG/UGA Application deadline: 01/03/2018 How to Apply \u0026amp; Contact Information\nPlease send the following documents to Franck.Rousseau@imag.fr and Karine.Altisen@univ-grenoble-alpes.fr\nEmail subject MUST start with \u0026ldquo;[Post-Doc IoT]\u0026rdquo; Letter of application: why this multidisciplinary research position interests you, and what you would like to work on Curriculum vitae References or letters of recommendation Applicant\u0026rsquo;s scientific report or paper written in English Any other document showing that you are an outstanding candidate Subject\nAvailable online\nAbstract\nStandardization is moving quickly at every layer of the protocol stack. In particular, the IEEE 802.15.4 standards are dedicated to the physical and link layers, where Medium Access Control (MAC) is of primary interest. Above them, 6LoWPAN/IPv6 and RPL, standardized at the IETF, deal with the network layer and routing. IEEE 802.15.4e defines TSCH (IEEE Std 802.15.4e-2012), a new MAC which focuses on ultra low-power and high reliability, targeting industrial applications. TSCH is named after its two key principles: Time Slotted operations and Channel Hopping. The former reduces the radio activity to the minimum, providing ultra low-power operation, while both together guarantee time and frequency diversity, hence providing high reliability. More precisely, TSCH organizes communications using cell reservations, where each cell is defined as a pair made of a time slot and a channel.\nNow, TSCH defines only how to execute a communication schedule. For this reason, the IETF is currently working on the standardization of 6TiSCH, an intermediate layer that will provide the missing parts. In this scope, support for resource allocation is being defined and will be compatible with both centralized and distributed approaches, but will not specify any algorithm. However, up to now, the resource management support relies on external centralized entities. For example, a centralized path computation engine is used to pre-compute static schedules and paths. Such approaches clearly do not scale. We aim to go beyond this limitation by proposing efficient distributed algorithms and implementations for resource allocation.\nThe objective of this work is to provide the means to operate a WSN with TSCH in a fully distributed manner, namely without using any centralized entities. To reach this goal, the subject focuses on MAC in order to compute and allocate, in a distributed manner, global schedules of cells that will guarantee required properties.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/post-doc-on-distributed-approach-for-cross-layer-resource-allocation-in-wireless-sensor-networks/","section":"Join us","summary":"\u003cul\u003e\n\u003cli\u003ePosition: Post-Doc\u003c/li\u003e\n\u003cli\u003eContract: 10 months maximum\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: LIG and VERIMAG laboratories, Université Grenoble Alpes, Grenoble Institute of Technology\u003c/li\u003e\n\u003cli\u003eScientific advisors: Olivier Alphand, Franck Rousseau @LIG/UGA, Karine Altisen, Stéphane Devismes @VERIMAG/UGA\u003c/li\u003e\n\u003cli\u003eApplication deadline: 01/03/2018\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Apply \u0026amp; Contact Information\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003ePlease send the following documents to \u003ca href=\"mailto:Franck.Rousseau@imag.fr\"\u003eFranck.Rousseau@imag.fr\u003c/a\u003e and \u003ca href=\"mailto:Karine.Altisen@univ-grenoble-alpes.fr\"\u003eKarine.Altisen@univ-grenoble-alpes.fr\u003c/a\u003e\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eEmail subject MUST start with \u0026ldquo;[Post-Doc IoT]\u0026rdquo;\u003c/li\u003e\n\u003cli\u003eLetter of application: why this multidisciplinary research position interests you, and what you would like to work on\u003c/li\u003e\n\u003cli\u003eCurriculum vitae\u003c/li\u003e\n\u003cli\u003eReferences or letters of recommendation\u003c/li\u003e\n\u003cli\u003eApplicant\u0026rsquo;s scientific report or paper written in English\u003c/li\u003e\n\u003cli\u003eAny other document showing that you are an outstanding candidate\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSubject\u003c/strong\u003e\u003c/p\u003e","title":"Post-Doc on Distributed Approach for Cross-Layer Resource Allocation in Wireless Sensor Networks"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/andreina-liendo/","section":"Members","summary":"","title":"Andreina Liendo"},{"content":"PhD thesis with Digigram\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/mickael-henry/","section":"Members","summary":"\u003cp\u003ePhD thesis with Digigram\u003c/p\u003e","title":"Mickaël Henry"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/mira-sarkis/","section":"Members","summary":"","title":"Mira Sarkis"},{"content":"PhD thesis CEA\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/moises-nunez-ochoa/","section":"Members","summary":"\u003cp\u003ePhD thesis CEA\u003c/p\u003e","title":"Moises Nunez Ochoa"},{"content":"The CHARIOT project aimed at evaluating complete security solutions based on secret-key cryptography, covering both symmetric key distribution and authenticated encryption. A central element was the evaluation under real conditions of the authenticated encryption schemes submitted to the CAESAR competition, in order to assess how well they suit the security problems of the Internet of Things, with a focus on networking aspects.\nPartners # LIG – Grenoble INP, UGA: Franck Rousseau LIG – CNRS: Van Toan Dao, project engineer LORIA – Université de Lorraine: Marine Minier LIMOS – UCA: Pascal Lafourcade ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/peps-ocaaa-chariot/","section":"Projects","summary":"\u003cp\u003eThe CHARIOT project aimed at \u003cstrong\u003eevaluating complete security solutions\u003c/strong\u003e based on\nsecret-key cryptography, covering both \u003cstrong\u003esymmetric key distribution\u003c/strong\u003e and\n\u003cstrong\u003eauthenticated encryption\u003c/strong\u003e. A central element was the \u003cstrong\u003eevaluation under real\nconditions of the authenticated encryption schemes\u003c/strong\u003e submitted to the \u003cstrong\u003eCAESAR\ncompetition\u003c/strong\u003e, in order to assess how well they suit the security problems of the\nInternet of Things, with a focus on networking aspects.\u003c/p\u003e\n\u003ch3 id=\"partners\" class=\"relative group\"\u003ePartners \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#partners\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cul\u003e\n\u003cli\u003eLIG – Grenoble INP, UGA: Franck Rousseau\u003c/li\u003e\n\u003cli\u003eLIG – CNRS: Van Toan Dao, project engineer\u003c/li\u003e\n\u003cli\u003eLORIA – Université de Lorraine: Marine Minier\u003c/li\u003e\n\u003cli\u003eLIMOS – UCA: Pascal Lafourcade\u003c/li\u003e\n\u003c/ul\u003e","title":"PEPS OCAAA CHARIOT"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/than-hai-to/","section":"Members","summary":"","title":"Than Hai To"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/ulysse-coutaud/","section":"Members","summary":"","title":"Ulysse Coutaud"},{"content":"IoT lightweight ciphers\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/van-toan-dao/","section":"Members","summary":"\u003cp\u003eIoT lightweight ciphers\u003c/p\u003e","title":"Van Toan Dao"},{"content":"We have 1 PhD position open in the area of measurements for cybersecurity.\n","date":"22 November 2017","permalink":"https://drakkar.imag.fr/news/phd-offer-in-the-area-of-measurements-for-cybersecurity/","section":"News","summary":"\u003cp\u003eWe have 1 \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/open-positions/\"\u003ePhD position\u003c/a\u003e open in the area of measurements for cybersecurity.\u003c/p\u003e","title":"PhD offer in the area of measurements for cybersecurity"},{"content":"We have 1 research engineer short-term position open, contact us for more information.\n","date":"25 May 2017","permalink":"https://drakkar.imag.fr/news/we-are-hiring-1-engineer-position-still-open/","section":"News","summary":"\u003cp\u003eWe have 1 \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/open-positions/\"\u003eresearch engineer short-term position\u003c/a\u003e open, contact us for more information.\u003c/p\u003e","title":"We are hiring: 1 engineer position still open"},{"content":"We have 3 research engineer positions open\n","date":"7 April 2017","permalink":"https://drakkar.imag.fr/news/we-are-hiring-3-engineer-positions-open/","section":"News","summary":"\u003cp\u003eWe have 3 \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/open-positions/\"\u003eresearch engineer positions\u003c/a\u003e open\u003c/p\u003e","title":"We are hiring: 3 engineer positions open"},{"content":" Position: Research engineer CNRS Contract: fixed-term 9 months, gross salary 28k€/year minimum Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology Scientific advisors: Franck Rousseau @LIG/UGA, Marine Minier @LORIA/U.Lorraine, Pascal Lafourcade @LIMOS/UCA Application deadline: 01/06/2017 Context\nThis project will take place in the scope of the PEPS OCAAA CHARIOT project, in the Drakkar research group at the LIG - Université Grenoble Alpes. LIMOS - Université Clermont Auvergne and LORIA - Université de Lorraine are partners in the project. The Internet of Things will succeed only if the many security issues that we witness on a daily basis are solved. The IoT poses many challenges in terms of security. Many of the \u0026ldquo;Things\u0026rdquo; are devices with very stringent constraints in terms of energy, memory and processing power, and are often deployed in harsh environments that are hard to control.\nExpected work\nIn the scope of the CHARIOT project, Chiffrement Authentifié pour la Robustesse de l\u0026rsquo;IoT, we will study security solutions based on symmetric authenticated encryption submitted to the CAESAR competition. We want to test these proposals in real-world conditions on very constrained devices. We will run experiments on a local platform and on IoT-lab.\nTasks:\nstudy various available OSes like Contiki, Riot and OpenWSN to propose a generic solution; choose and experiment with one of these environments; implement some / all the CAESAR propositions; set up an experimental protocol and validate the implementations; measure performance and analyze the results. Outcome:\nportable implementation of the CAESAR algorithms; performance evaluation results in various typical IoT setups. Skills \u0026amp; Expertise\nApplicants for this position must have an engineering, MSc or PhD degree in computer science.\nExpected skills:\nPython and C programming languages; good software development practices (version control, tests); Unix-like environment. Good to have: embedded systems programming; security and cryptography. Location and Institution\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bikeways.\nThe Drakkar group investigates various aspects of network protocols, security and multimedia applications with an emphasis on wireless networks and sensor networks. The LIG lab has just moved to the brand new IMAG building, thus offering a very high standard work environment.\nHow to Apply \u0026amp; Contact Information\nIf you need additional information on this job offer, please contact Franck.Rousseau@imag.fr\nPlease apply by sending the following documents to Franck.Rousseau@imag.fr:\nEmail subject MUST start with \u0026ldquo;[IR Chariot]\u0026rdquo;; Letter of application; Curriculum vitae; Transcripts for undergraduate and graduate studies; References or letters of recommendation are appreciated. Links\nhttps://competitions.cr.yp.to/caesar.html https://www.iot-lab.info http://walt.forge.imag.fr ","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/chiffrement-authentifie-pour-la-robustesse-de-liot/","section":"Join us","summary":"\u003cul\u003e\n\u003cli\u003ePosition: Research engineer CNRS\u003c/li\u003e\n\u003cli\u003eContract: fixed-term 9 months, gross salary 28k€/year minimum\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology\u003c/li\u003e\n\u003cli\u003eScientific advisors: Franck Rousseau @LIG/UGA, Marine Minier @LORIA/U.Lorraine, Pascal Lafourcade @LIMOS/UCA\u003c/li\u003e\n\u003cli\u003eApplication deadline: 01/06/2017\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContext\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThis project will take place in the scope of the PEPS OCAAA CHARIOT project, in the Drakkar research group at the LIG - Université Grenoble Alpes. LIMOS - Université Clermont Auvergne and LORIA - Université de Lorraine are partners in the project. The Internet of Things will succeed only if the many security issues that we witness on a daily basis are solved. The IoT poses many challenges\nin terms of security. Many of the \u0026ldquo;Things\u0026rdquo; are devices with very stringent constraints in terms of energy, memory and processing power, and are often deployed in harsh environments that are hard to control.\u003c/p\u003e","title":"Authenticated Encryption for a Robust IoT"},{"content":" Position: Research engineer Grenoble INP Contract: fixed-term 6 months, gross salary 28k€/year minimum Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology Scientific advisor: Franck Rousseau @LIG/UGA Application deadline: 01/06/2017 Context\nThe DataTweet project proposes to explore the idea of a ubiquitous public data service for transmitting short messages. Any user or source of the service will be able to send a short message at a very low rate to some destination address over various access networks: open 802.11 hotspots, base stations of LTE, ITS G5 car-to-infrastructure stations. The user or a device sends its message to the nearest wireless network at hand (for instance a 802.11 hotspot) which forwards it over multiple hops to the destination through the infrastructure network.\nExpected work\nIn the scope of this project, you will work with the Drakkar group, the city of Grenoble and other partners in the project, to set up an experiment in the city of Grenoble. The goal is to deploy some of the experiments done in the lab in the field, at a single location to begin with. After successful trials, the demonstration will be extended to other points in the city.\nTasks:\ninstall and run existing experiments in a clean environment built from the ground up; interact with the people in charge of the network support at the city of Grenoble; set up a simple framework to manage the experiment site remotely; deploy some of the project\u0026rsquo;s experiments and check that they run correctly; deploy at several locations in the city of Grenoble. Skills \u0026amp; Expertise\nApplicants for this position must have an engineering, MSc or PhD degree in computer science.\nExpected skills:\nPython and C programming languages; good software development practices (version control, tests); Unix-like environment. Location and Institution\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bikeways.\nThe Drakkar group investigates various aspects of network protocols, security and multimedia applications with an emphasis on wireless networks and sensor networks. The LIG lab has just moved to the brand new IMAG building, thus offering a very high standard work environment.\nHow to Apply \u0026amp; Contact Information\nIf you need additional information on this job offer, please contact Franck.Rousseau@imag.fr\nPlease apply by sending the following documents to Franck.Rousseau@imag.fr:\nEmail subject MUST start with \u0026ldquo;[IR Datatweet]\u0026rdquo;; Letter of application; Curriculum vitae; Transcripts for undergraduate and graduate studies; References or letters of recommendation are appreciated. Links\nhttps://datatweet.imag.fr ","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/datatweet-project-demonstrator-in-the-city-of-grenoble/","section":"Join us","summary":"\u003cul\u003e\n\u003cli\u003ePosition: Research engineer Grenoble INP\u003c/li\u003e\n\u003cli\u003eContract: fixed-term 6 months, gross salary 28k€/year minimum\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology\u003c/li\u003e\n\u003cli\u003eScientific advisor: Franck Rousseau @LIG/UGA\u003c/li\u003e\n\u003cli\u003eApplication deadline: 01/06/2017\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContext\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe DataTweet project proposes to explore the idea of a ubiquitous public data service for transmitting short messages. Any user or source of the service will be able to send a short message at a very low rate to some destination address over various access networks: open 802.11 hotspots, base stations of LTE, ITS G5 car-to-infrastructure stations. The user or a device sends its message to the nearest wireless network at hand (for instance a 802.11 hotspot) which forwards it over multiple hops to the destination through the infrastructure network.\u003c/p\u003e","title":"Datatweet project demonstrator in the city of Grenoble"},{"content":" Position: Research engineer Grenoble INP Contract: fixed-term 12 months, gross salary 28k€/year minimum Start date: ASAP Location: Grenoble, Rhône-Alpes, France Hosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology Scientific advisor: Franck Rousseau @LIG/UGA Application deadline: 01/06/2017 Context\nto iotize: to connect an electronic system to the Internet of Things when it was never designed to be networked at all.\nIoTize™ is a collaborative research and development project set out to optimize and secure a promising technology, and to make it easier to use. The consortium brings together leading companies and laboratories in digital security, embedded components and radio frequency technologies. These partners address all facets of IoT implementation from cloud-level services and security, to RF technology implementation, board-level security and manufacturing.\nExpected work\nIn the scope of the IoTize project, we work on the development of an end-to-end security solution. You will work on the implementation of software security solutions based on the hardware roots of trust available in current and future embedded ARM microcontrollers.\nTasks:\nimplement an authentication and encryption solution for IoTize; implement a secure host-IoTize link; implement a secure IoTize-smartphone link; implement a remote security management scheme based on cloud services. Skills \u0026amp; Expertise\nApplicants for this position must have an engineering, MSc or PhD degree in computer science.\nExpected skills:\nPython and C programming languages; good software development practices (version control, tests); Unix-like environment. Good to have:\nembedded systems programming; security and cryptography. Location and Institution\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bikeways.\nThe Drakkar group investigates various aspects of network protocols, security and multimedia applications with an emphasis on wireless networks and sensor networks. The LIG lab has just moved to the brand new IMAG building, thus offering a very high standard work environment.\nHow to Apply \u0026amp; Contact Information\nIf you need additional information on this job offer, please contact Franck.Rousseau@imag.fr\nPlease apply by sending the following documents to Franck.Rousseau@imag.fr:\nEmail subject MUST start with \u0026ldquo;[IR IoTize]\u0026rdquo;; Letter of application; Curriculum vitae; Transcripts for undergraduate and graduate studies; References or letters of recommendation are appreciated. Links\nhttp://www.iotize.com ","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/secure-communication-module-for-the-iot/","section":"Join us","summary":"\u003cul\u003e\n\u003cli\u003ePosition: Research engineer Grenoble INP\u003c/li\u003e\n\u003cli\u003eContract: fixed-term 12 months, gross salary 28k€/year minimum\u003c/li\u003e\n\u003cli\u003eStart date: ASAP\u003c/li\u003e\n\u003cli\u003eLocation: Grenoble, Rhône-Alpes, France\u003c/li\u003e\n\u003cli\u003eHosting institution: LIG laboratory, Université Grenoble Alpes, Grenoble Institute of Technology\u003c/li\u003e\n\u003cli\u003eScientific advisor: Franck Rousseau @LIG/UGA\u003c/li\u003e\n\u003cli\u003eApplication deadline: 01/06/2017\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e\u003cstrong\u003eContext\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003cem\u003eto iotize\u003c/em\u003e: to connect an electronic system to the Internet of Things when it was never designed to be networked at all.\u003c/p\u003e\n\u003cp\u003eIoTize™ is a collaborative research and development project set out to optimize and secure a promising technology, and to make it easier to use. The consortium brings together leading companies and laboratories in digital security, embedded components and radio frequency technologies. These partners address all facets of IoT implementation from cloud-level services and security, to RF technology implementation, board-level security and manufacturing.\u003c/p\u003e","title":"Secure communication module for the IoT"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/micha%C5%82-krol/","section":"Members","summary":"","title":"Michał Król"},{"content":"PhD thesis with Gorgy Timing\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/faten-mkacher/","section":"Members","summary":"\u003cp\u003ePhD thesis with Gorgy Timing\u003c/p\u003e","title":"Faten Mkacher"},{"content":"Université Grenoble Alpes and LIG Laboratory invite applications for the following position:\nPost-Doc/Researcher (12 months, possible extension)\nThe applicant will work in the ARAMIS project on Security of SCADA Industrial Networks (OPC UA). The objective of the ARAMIS project is to design a security gateway for filtering and monitoring traffic in SCADA networks. In particular, we want to design innovative schemes for detecting unauthorized and potentially malicious traffic in networks of this type. The work also includes tests on a SCADA platform.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols including SCADA\nTraffic monitoring and anomaly detection\nSecurity\nMaximum Pay Grade: 2800 euros gross depending on qualifications.\nApplicants should send a detailed CV, a list of publications and the names of two referees to Andrzej.Duda@imag.fr\nClosing date for applications: October 30th, 2016\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/security-of-scada-industrial-networks/","section":"Join us","summary":"\u003cp\u003eUniversité Grenoble Alpes and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cp\u003ePost-Doc/Researcher (12 months, possible extension)\u003c/p\u003e\n\u003cp\u003eThe applicant will work in the ARAMIS project on Security of SCADA Industrial Networks (OPC UA). The objective of the ARAMIS project is to design a security gateway for filtering and monitoring traffic in SCADA networks. In particular, we want to design innovative schemes for detecting unauthorized and potentially malicious traffic in networks of this type. The work also includes tests on a SCADA platform.\u003c/p\u003e","title":"Security of SCADA Industrial Networks"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/baptiste-jonglez/","section":"Members","summary":"","title":"Baptiste Jonglez"},{"content":"Our paper and demo presented at CNERT, WalT: A Reproducible Testbed for Reproducible Network Experiments\nCheck WalT on the forge: you will find everything you need to build your own testbed.\n","date":"25 April 2016","permalink":"https://drakkar.imag.fr/news/walt-best-demo-award-at-cnert-san-francisco/","section":"News","summary":"\u003cp\u003eOur paper and demo presented at \u003ca href=\"http://cnert2016.csec.rit.edu\" target=\"_blank\" rel=\"noreferrer\"\u003eCNERT\u003c/a\u003e, \u003ca href=\"https://hal.archives-ouvertes.fr/hal-01287566\" target=\"_blank\" rel=\"noreferrer\"\u003eWalT: A Reproducible Testbed for Reproducible Network Experiments\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eCheck WalT on the forge: you will find everything you need to build your own testbed.\u003c/p\u003e","title":"WalT Best Demo Award at CNERT San Francisco"},{"content":"Routing in Wireless Sensor Networks #The Internet of Things (IoT) paradigm envisions expanding the current Internet with a huge number of intelligent communicating devices. Wireless Sensor Networks (WSN) deploy the devices running on limited energy supplies and measuring environmental phenomena (like temperature, radioactivity, or CO2). Popular WSN applications include monitoring, telemetry, and natural disaster prevention. Major WSN challenges are energy efficiency, overcoming impairments of wireless medium, and self-organisation. WSN integrating IoT will rely on a set of open standards striving to offer scalability and reliability in a variety of operating scenarios and conditions. Nevertheless, the current state of the standards present interoperability issues and can benefit from further improvements. The contributions of the thesis are the following:\nWe perform an extensive study of Bloom Filters and their use in encoding node characteristics in a compact form in IP addresses. Different techniques of compression and variants of filters allowed us to develop an efficient system closing the gap between feature-routing and classic approaches compatible with IPv6 networks. We propose Featurecast, a routing protocol/naming service for WSN. It allows to query sensor networks using a set of characteristics while fitting in an IPv6 packet header. We integrate our protocol with RPL and introduce a new metric that increases routing efficiency. We validate its performance in both extensive simulations and experimentations on real sensors on a large-scale Senslab testbed. Large-scale simulations demonstrate the advantages of our protocol in terms of memory usage, control overhead, packet delivery rate, and energy consumption. We introduce WEAVE, a routing protocol for networks with geolocation. Our solution does not use any control messages and learns its paths only by observing incoming traffic. Several mechanisms are introduced to keep a fixed-size header, bypass both small as well as large obstacles, and support efficient communication between nodes. We performed simulations on a large scale involving more than 19 000 nodes and real-sensor experimentations on the FIT IoT-lab testbed. Our results show that we achieve much better performance than other protocols, especially in large and dynamic networks, without introducing any control overhead. ","date":"8 March 2016","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-micha%C5%82-krol-15-mars/","section":"News","summary":"\u003ch3 id=\"routing-in-wireless-sensor-networks\" class=\"relative group\"\u003eRouting in Wireless Sensor Networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#routing-in-wireless-sensor-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe Internet of Things (IoT) paradigm envisions expanding the current Internet with a huge number of intelligent communicating devices. Wireless Sensor Networks (WSN) deploy the devices running on limited energy supplies and measuring environmental phenomena (like temperature, radioactivity, or CO2). Popular WSN applications include monitoring, telemetry, and natural disaster prevention. Major WSN challenges are energy efficiency, overcoming impairments of wireless medium, and self-organisation. WSN integrating IoT will rely on a set of open standards striving to offer scalability and reliability in a variety of operating scenarios and conditions. Nevertheless, the current state of the standards present interoperability issues and can benefit from further improvements. The contributions of the thesis are the following:\u003c/p\u003e","title":"Thesis defense — Michał Król — March 15"},{"content":"Position: PhD Student Start date: ASAP Contract: permanent contract with Digigram Location: Grenoble, Rhône-Alpes, France Hosting Institutions:\nUniversité Grenoble Alpes, Grenoble Institute of Technology, LIG lab Digigram Research themes: networking, coding, live multimedia, reliable transport Scientific advisor: Franck Rousseau Application deadline: 01/07/2016 Research #This research focuses on reliable transport of live multimedia flows, mainly audio and video. You will work on characterizing different types of networks, and propose original solutions to provide high quality of service on top of these networks when using several paths simultaneously. The two main goals to achieve are low latency, since we focus on live communications, and high quality of service, to provide the best experience to the user.\nMany new services are provided over the top, which means that no specific lower layers services are provided by the network operators to build upon. Your goal will be to study, propose and implement a new transport protocol to reach the goal of high quality live multimedia communications using conventional Internet access. You will conduct research to study three different topics: (i) multi-path transport, (ii) reliable transport, using various strategies like retransmission, interleaving, coding, and (iii) dynamic adaptation. We expect thorough study with analytical and experimental approaches, with effective simulation and implementation results.\nHigh quality prototype implementation is of prime importance and is an expected outcome of your work. You will interact with engineers developing professional hardware and software products for multimedia data transmission. They will provide all the necessary support to conduct real-world experiments to validate your results with practical use cases.\nSkills \u0026amp; Expertise #Applicants for this position must have an MSc or equivalent at the time they start in the position. We are looking for excellent candidates with the following:\nMaster\u0026rsquo;s degree in Computer Science, Computer Engineering, Electrical Engineering, Telecommunications or equivalent Strong motivation to conduct high quality research in a challenging environment Excellent programming skills and good software development practices Knowledge in network and kernel programming is a real plus Excellent English speaking and writing skills are mandatory Basic French skills are required, but this position is an opportunity to learn and improve Salary \u0026amp; Benefits # Annual gross salary: 27k€ (CIFRE contract with Digigram) Permanent contract 41 days of annual vacation Employer covers half of public transport commute expenses Employer covers part of your lunch expenses Location and Institution #This position is a joint position with Digigram and Grenoble INP - LIG laboratory. Digigram and LIG are only a few kilometers from one another with a direct bus line between the two.\nCreated in 1985, Digigram is a leading company in providing solutions for audio and video broadcasting. Based in Montbonnot, in the Inovallee technological park near Grenoble, Digigram provides a dynamic and innovative environment in developing products at the edge of latest available technologies in very high quality audio and video over IP.\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bikeways.\nGrenoble INP, the Grenoble Institute of Technology, is one of Europe\u0026rsquo;s leading technology universities, at the heart of innovation for more than a century. Grenoble Institute of Technology is involved in major development projects such as Minatec, or the Minalogic (micro and nanotechnology and embedded software) and TEneRRDIS (renewable energy) industrial clusters. With its solid combination of teaching, research and business promotion, Grenoble Institute of Technology plays a key role in making Grenoble one of the most attractive scientific and industrial locations worldwide.\nResearch is one of Grenoble Institute of Technology\u0026rsquo;s strengths. The LIG laboratory is one of Grenoble INP 38 laboratories, some of which are shared with the CNRS (French national scientific research center) and the other three Grenoble universities. The scientific project of the LIG laboratory is ambient and sustainable IT. The activities of the LIG cover five key scientific domains: (i) Software Engineering and Information Systems, (ii) Formal Methods, Models and Languages, (iii) Interactive and Cognitive Systems, (iv) Distributed Systems, Parallel Computing and Networks, (v) Large Scale Data and Knowledge Processing.\nThe Drakkar group investigates various aspects of network protocols, security and multimedia applications with the emphasis on wireless networks, sensor networks. The LIG lab will move to the brand new PILSI IMAG building Q2 2016, thus offering very high standard work environment.\nHow to Apply \u0026amp; Contact Information #If you need additional information on this job offer, please contact Franck.Rousseau@imag.fr\nPlease apply by sending the following documents to Franck.Rousseau@imag.fr:\nEmail subject MUST start with \u0026ldquo;[PhD Digigram]\u0026rdquo; Letter of application Curriculum vitae Transcripts for undergraduate and graduate studies References or letters of recommendation Applicant\u0026rsquo;s scientific report or paper written in English Any other document showing that you are an outstanding candidate Links #http://www.digigram.com http://www.grenoble-inp.fr http://www.liglab.fr https://drakkar.imag.fr http://www.grenoble.fr\n","date":"7 March 2016","permalink":"https://drakkar.imag.fr/news/phd-offer-reliable-transport-of-live-multimedia-traffic/","section":"News","summary":"\u003cp\u003ePosition: PhD Student\nStart date: ASAP\nContract: permanent contract with Digigram\nLocation: Grenoble, Rhône-Alpes, France\nHosting Institutions:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eUniversité Grenoble Alpes, Grenoble Institute of Technology, LIG lab\u003c/li\u003e\n\u003cli\u003eDigigram\nResearch themes: networking, coding, live multimedia, reliable transport\nScientific advisor: \n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/franck-rousseau/\"\u003eFranck Rousseau\u003c/a\u003e\nApplication deadline: 01/07/2016\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3 id=\"research\" class=\"relative group\"\u003eResearch \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#research\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThis research focuses on reliable transport of live multimedia flows, mainly audio and video. You will work on characterizing different types of networks, and propose original solutions to provide high quality of service on top of these networks when using several paths simultaneously. The two main goals to achieve are low latency, since we focus on live communications, and high quality of service, to provide the best experience to the user.\u003c/p\u003e","title":"PhD offer Reliable transport of live multimedia traffic"},{"content":"The goal of the thesis is to enable IPv6 harvested and autonomous wireless sensor networks with very low duty-cycle. It is part of an industrial project, GreenNet, hosted by STMicroelectronics with the goal of being a pioneer in the Internet of Things. The new platform differentiates from its existing competitors by a small size, which implies small battery capacity. However, a photovoltaic cell is capable of recharging the battery even under low light conditions. On top of this, we aim at nodes that sleep for very long periods. Hence, the existing solutions were not completely suited for our needs. The thesis proposes to analyze the possible challenges that one can meet while developing a harvested low-duty cycle platform. The most important contribution of this work is that we implement and evaluate the performance of our solutions on real hardware platforms in conditions very close to real-life. In this dissertation, we first of all develop and implement a basic solution based on the IEEE 802.15.4 beacon-enabled standard. We choose the synchronized mode because it allows nodes to reach duty-cycles as low as 0.01%. A more difficult step was to bring multi-hop: we design a new routing scheme inside our network, and a time based access for routers and devices to eliminate interferences as much as possible. The routing scheme is meant to be simple and efficient. We go even further to optimize the total time the nodes are on: we proposed to shut down coordinators before their standardized end of slot when there is no communication. Devices that do not need to send data can skip beacons and only need to wake up to synchronize their clock or to send data. In the same time we solve the problem of multicast for long sleeping nodes by converting these packets into unicast traffic. We also improved the duty-cycle of routers that do no have associated devices by forcing them to beacon at a slower rate, as long as they do not have any associated devices. To improve the network performance we also propose a backward compatible multi-channel solution. Such a scheme is useful when a link between two nodes achieves very bad performance on a certain channel but better results on a different frequency. All the solutions presented above and discussed in the dissertation were implemented and tested on the GreenNet platform. We also realized measurements of the nodes efficiency while in harvested conditions and showed that it is possible to handle harvested routers, when there is enough available light.\n","date":"16 December 2015","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-liviu-octavian-varga-16-decembre/","section":"News","summary":"\u003cp\u003eThe goal of the thesis is to enable IPv6 harvested and autonomous wireless sensor networks with very low duty-cycle. It is part of an industrial project, GreenNet, hosted by STMicroelectronics with the goal of being a pioneer in the Internet of Things. The new platform differentiates from its existing competitors by a small size, which implies small battery capacity. However, a photovoltaic cell is capable of recharging the battery even under low light conditions. On top of this, we aim at nodes that sleep for very long periods. Hence, the existing solutions were not completely suited for our needs.\nThe thesis proposes to analyze the possible challenges that one can meet while developing a harvested low-duty cycle platform. The most important contribution of this work is that we implement and evaluate the performance of our solutions on real hardware platforms in conditions very close to real-life.\nIn this dissertation, we first of all develop and implement a basic solution based on the IEEE 802.15.4 beacon-enabled standard. We choose the synchronized mode because it allows nodes to reach duty-cycles as low as 0.01%. A more difficult step was to bring multi-hop: we design a new routing scheme inside our network, and a time based access for routers and devices to eliminate interferences as much as possible. The routing scheme is meant to be simple and efficient.\nWe go even further to optimize the total time the nodes are on: we proposed to shut down coordinators before their standardized end of slot when there is no communication. Devices that do not need to send data can skip beacons and only need to wake up to synchronize their clock or to send data. In the same time we solve the problem of multicast for long sleeping nodes by converting these packets into unicast traffic. We also improved the duty-cycle of routers that do no have associated devices by forcing them to beacon at a slower rate, as long as they do not have any associated devices.\nTo improve the network performance we also propose a backward compatible multi-channel solution. Such a scheme is useful when a link between two nodes achieves very bad performance on a certain channel but better results on a different frequency.\nAll the solutions presented above and discussed in the dissertation were implemented and tested on the GreenNet platform. We also realized measurements of the nodes efficiency while in harvested conditions and showed that it is possible to handle harvested routers, when there is enough available light.\u003c/p\u003e","title":"Thesis defense — Liviu Octavian Varga — December 16"},{"content":"PhD thesis ST-CEA\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/elodie-morin/","section":"Members","summary":"\u003cp\u003ePhD thesis ST-CEA\u003c/p\u003e","title":"Elodie Morin"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/henry-joseph-audeoud/","section":"Members","summary":"","title":"Henry-Joseph Audeoud"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/minh-quan-ho/","section":"Members","summary":"","title":"Minh Quan Ho"},{"content":"PhD thesis: IoTize\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/timothy-claeys/","section":"Members","summary":"\u003cp\u003ePhD thesis: \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/fui-iotize-2015-2018/\"\u003eIoTize\u003c/a\u003e\u003c/p\u003e","title":"Timothy Claeys"},{"content":"Architectures and Protocols for Secure and Energy-Efficient Integration of Wireless Sensor Networks with the Internet of Things #Soutenance prévue le mardi 17 novembre 2015 à 14h à l’UFR IM2AG, 60 rue de la Chimie, Domaine universitaire, 38402 Saint Martin d’Hères - Salle F022\nAbstract #Our research explores the intersection of academic, industrial and standardization spheres to enable secure and energy-efficient Internet of Things. We study standards-based security solutions bottom-up and first observe that hardware accelerated cryptography is a necessity for Internet of Things devices, as it leads to reductions in computational time, as much as two orders of magnitude. Overhead of the cryptographic primitives is, however, only one of the factors that influences the overall performance in the networking context. To understand the energy – security tradeoffs, we evaluate the effect of link-layer security features on the performance of Wireless Sensors Networks. We show that for practical applications and implementations, link-layer security features introduce a negligible degradation on the order of a couple of percent, that is often acceptable even for the most energy-constrained systems, such as those based on harvesting. Because link-layer security puts trust on each node on the communication path consisted of multiple, potentially compromised devices, we protect the information flows by end-to-end security mechanisms. We therefore consider Datagram Transport Layer Security (DTLS) protocol, the IETF standard for end-to-end security in the Internet of Things and contribute to the debate in both the standardization and research communities on the applicability of DTLS to constrained environments. We provide a thorough performance evaluation of DTLS in different duty-cycled networks through real-world experimentation, emulation and analysis. Our results demonstrate surprisingly poor performance of DTLS in networks where energy efficiency is paramount. Because a DTLS client and a server exchange many signaling packets, the DTLS handshake takes between a handful of seconds and several tens of seconds, with similar results for different duty cycling protocols. But apart from its performance issues, DTLS was designed for point-to-point communication dominant in the traditional Internet. The novel Constrained Application Protocol (CoAP) was tailored for constrained devices by facilitating asynchronous application traffic, group communication and absolute need for caching. The security architecture based on DTLS is, however, not able to keep up and advanced features of CoAP simply become futile when used in conjunction with DTLS. We propose an architecture that leverages the security concepts both from content-centric and traditional connection-oriented approaches. We rely on secure channels established by means of DTLS for key exchange, but we get rid of the notion of “state” among communicating entities by leveraging the concept of object security. We provide a mechanism to protect from replay attacks by coupling the capability-based access control with network communication and CoAP header. OSCAR, our object-based security architecture, intrinsically supports caching and multicast, and does not affect the radio duty-cycling operation of constrained devices. Ideas from OSCAR have already found their way towards the Internet standards and are heavily discussed as potential solutions for standardization. Keywords: Internet of Things, Wireless Sensor Network, security, performance, object security.\n","date":"2 November 2015","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-malisa-vucinic-17-novembre/","section":"News","summary":"\u003ch3 id=\"architectures-and-protocols-for-secure-and-energy-efficient-integration-of-wireless-sensor-networks-with-the-internet-of-things\" class=\"relative group\"\u003eArchitectures and Protocols for Secure and Energy-Efficient Integration of Wireless Sensor Networks with the Internet of Things \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#architectures-and-protocols-for-secure-and-energy-efficient-integration-of-wireless-sensor-networks-with-the-internet-of-things\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le mardi \u003cstrong\u003e17 novembre 2015 à 14h\u003c/strong\u003e à l’UFR IM2AG, 60 rue de la Chimie, Domaine universitaire, 38402 Saint Martin d’Hères - Salle F022\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eOur research explores the intersection of academic, industrial and standardization spheres to enable secure and energy-efficient Internet of Things. We study standards-based security solutions bottom-up and first observe that hardware accelerated cryptography is a necessity for Internet of Things devices, as it leads to reductions in computational time, as much as two orders of magnitude. Overhead of the cryptographic primitives is, however, only one of the factors that influences the overall performance in the networking context. To understand the energy – security tradeoffs, we evaluate the effect of link-layer security features on the performance of Wireless Sensors Networks. We show that for practical applications and implementations, link-layer security features introduce a negligible degradation on the order of a couple of percent, that is often acceptable even for the most energy-constrained systems, such as those based on harvesting.\nBecause link-layer security puts trust on each node on the communication path consisted of multiple, potentially compromised devices, we protect the information flows by end-to-end security mechanisms. We therefore consider Datagram Transport Layer Security (DTLS) protocol, the IETF standard for end-to-end security in the Internet of Things and contribute to the debate in both the standardization and research communities on the applicability of DTLS to constrained environments. We provide a thorough performance evaluation of DTLS in different duty-cycled networks through real-world experimentation, emulation and analysis. Our results demonstrate surprisingly poor performance of DTLS in networks where energy efficiency is paramount. Because a DTLS client and a server exchange many signaling packets, the DTLS handshake takes between a handful of seconds and several tens of seconds, with similar results for different duty cycling protocols.\nBut apart from its performance issues, DTLS was designed for point-to-point communication dominant in the traditional Internet. The novel Constrained Application Protocol (CoAP) was tailored for constrained devices by facilitating asynchronous application traffic, group communication and absolute need for caching. The security architecture based on DTLS is, however, not able to keep up and advanced features of CoAP simply become futile when used in conjunction with DTLS. We propose an architecture that leverages the security concepts both from content-centric and traditional connection-oriented approaches. We rely on secure channels established by means of DTLS for key exchange, but we get rid of the notion of “state” among communicating entities by leveraging the concept of object security. We provide a mechanism to protect from replay attacks by coupling the capability-based access control with network communication and CoAP header. OSCAR, our object-based security architecture, intrinsically supports caching and multicast, and does not affect the radio duty-cycling operation of constrained devices. Ideas from OSCAR have already found their way towards the Internet standards and are heavily discussed as potential solutions for standardization.\n\u003cstrong\u003eKeywords:\u003c/strong\u003e Internet of Things, Wireless Sensor Network, security, performance, object security.\u003c/p\u003e","title":"Thesis defense — Malisa Vucinic — November 17"},{"content":"Position: PhD Student Start date: ASAP or September 2015 Contract: 3-year contract Location: Grenoble, Rhône-Alpes, France Hosting Institution: Université Grenoble Alpes, Grenoble Institute of Technology, LIG lab Research themes: Internet of things, security, wireless networks, near-fields communications Scientific advisor: Franck Rousseau Application deadline: 31/08/2015\nResearch #The goal of this research is to participate in the study and design of security protocols for the Internet of Things. It will take place in the scope of the IoTize project. Forecasts predict that several billions \u0026ldquo;things\u0026rdquo; will be connected to the Internet in the coming years. This emerging IoT will change the way we interact with many types of devices.\nIoTize aims to provide an easy way to turn any device based on the ARM microcontroller family into an IoT \u0026ldquo;thing\u0026rdquo;. Using a small hardware module communicating on the JTAG/SWD port, it will make it easy to \u0026ldquo;iotize\u0026rdquo; any device, even one never designed with a wireless connection in mind, including legacy devices. User interaction with these \u0026ldquo;things\u0026rdquo; then takes place through NFC, BLE or Wi-Fi, using a smartphone and a generic application. Proof-of-concept implementations will be developed on test modules made available by our industrial partners to evaluate the propose solutions and benchmark the impact of cryptographic computations on the overall system.\nYour work will be to study, design and implement an end-to-end security solution in this context. Confidentiality, integrity, and availability are of prime importance in the IoT context, where the surface of attack is very large: this type of devices will be deployed in large uncontrolled areas, and wireless communications provide easy remote interaction even without physical access. Also, different types of services will require strict access control: several classes of users will provide security by limiting privileged functionalities to specific users with credentials, eg. reflashing the firmware or modifying the configuration, whereas anyone might be able to use the basic functionalities of a coffee machine.\nSkills \u0026amp; Expertise #Applicants for this position must have an MSc or equivalent at the time they start in the position. We are looking for excellent candidates with the following:\nMaster\u0026rsquo;s degree in Computer Science, Computer Engineering, Electrical Engineering, Telecommunications or equivalent Strong motivation to conduct high quality research in a challenging environment Excellent programming skills and good software development practices (C, Java, Python) Knowledge in embedded systems programming and Web development is a real plus Excellent English speaking and writing skills are mandatory Speaking French is not required, this position is an opportunity to learn and improve Salary \u0026amp; Benefits # Annual gross salary: 21k€ 45 days annual vacation Employer covers half of public transport commute expenses Employer covers part of your lunch expenses Location and Institution #This work will take place in the scope of the IoTize project that brings together leading companies and laboratories. This will be an opportunity to work with partners such as Keolabs, Gematlo, ST microelectronics, ISEN, and LIG. This project is certified and supported by the SCS (Secured Communicating Solutions) and Minalogic (micro, nanoelectronics and software) industrial clusters.\nThe LIG laboratory is located in Grenoble, the capital of the Alps. Grenoble is one of France\u0026rsquo;s major scientific and industrial centers for computer science and applied mathematics. The city lies amidst three mountain ranges and offers exceptional quality of life, with extensive public transportation and dedicated bikeways.\nGrenoble INP, the Grenoble Institute of Technology, is one of Europe\u0026rsquo;s leading technology universities, at the heart of innovation for more than a century. Grenoble Institute of Technology is involved in major development projects such as Minatec, or the Minalogic (micro and nanotechnology and embedded software) and TEneRRDIS (renewable energy) industrial clusters. With its solid combination of teaching, research and business promotion, Grenoble Institute of Technology plays a key role in making Grenoble one of the most attractive scientific and industrial locations worldwide.\nResearch is one of Grenoble Institute of Technology\u0026rsquo;s strengths. The LIG laboratory is one of Grenoble INP 38 laboratories, some of which are shared with the CNRS (French national scientific research center) and the other three Grenoble universities. The scientific project of the LIG laboratory is ambient and sustainable IT. The activities of the LIG cover five key scientific domains: (i) Software Engineering and Information Systems, (ii) Formal Methods, Models and Languages, (iii) Interactive and Cognitive Systems, (iv) Distributed Systems, Parallel Computing and Networks, (v) Large Scale Data and Knowledge Processing.\nThe Drakkar group investigates various aspects of network protocols, security and multimedia applications with the emphasis on wireless networks, sensor networks. The LIG lab will move to the brand new PILSI IMAG building Q2 2016, thus offering very high standard work environment.\nHow to Apply \u0026amp; Contact Information #If you need additional information on this job offer, please contact Franck.Rousseau@imag.fr\nPlease apply by sending the following document to Franck.Rousseau@imag.fr\nLetter of application Curriculum vitae Transcripts for undergraduate and graduate studies References or letters of recommendation Applicant\u0026rsquo;s scientific report or paper written in English Any other document showing that you are an outstanding candidate Links #http://www.grenoble-inp.fr http://www.liglab.fr https://drakkar.imag.fr http://www.keolabs.com http://www.iotize.com http://www.grenoble.fr\n","date":"15 July 2015","permalink":"https://drakkar.imag.fr/news/closed-phd-position-internet-of-things-and-security/","section":"News","summary":"\u003cp\u003ePosition: PhD Student\nStart date: ASAP or September 2015\nContract: 3-year contract\nLocation: Grenoble, Rhône-Alpes, France\nHosting Institution: Université Grenoble Alpes, Grenoble Institute of Technology, LIG lab\nResearch themes: Internet of things, security, wireless networks, near-fields communications\nScientific advisor: \n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/franck-rousseau/\"\u003eFranck Rousseau\u003c/a\u003e\nApplication deadline: 31/08/2015\u003c/p\u003e\n\u003ch3 id=\"research\" class=\"relative group\"\u003eResearch \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#research\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe goal of this research is to participate in the study and design of security protocols for the Internet of Things. It will take place in the scope of the IoTize project. Forecasts predict that several billions \u0026ldquo;things\u0026rdquo; will be connected to the Internet in the coming years. This emerging IoT will change the way we interact with many types of devices.\u003c/p\u003e","title":"CLOSED — PhD position Internet of Things and Security"},{"content":"FUI SCS \u0026amp; Minalogic\nThe IoTize project, endorsed by the SCS and Minalogic clusters, set out to connect embedded systems to smartphones through NFC modules. The aim was twofold: to give embedded devices shared, usable human interfaces, and to give unconnected objects a gateway to the Internet. The modules fit most embedded systems using a process patented by KEOLABS in 2014.\nThe consortium brought together five partners: KEOLABS, STMicroelectronics (Rousset), Gemalto, ISEN-Toulon and LIG-INP, with an advisory panel of companies contributing to the specification and testing of the solution. IoTize addressed specific needs of the IoT market with a complete path from microcontroller to Internet server. Its defining feature is how easily it integrates into most embedded systems, often requiring neither software nor hardware development: a set of software tools adapts it to the embedded application by configuration alone.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/fui-iotize-2015-2018/","section":"Projects","summary":"\u003cp\u003eFUI \u003ca href=\"http://www.pole-scs.org\" target=\"_blank\" rel=\"noreferrer\"\u003eSCS\u003c/a\u003e \u0026amp; \u003ca href=\"http://www.minalogic.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMinalogic\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eThe \u003ca href=\"http://www.iotize.com\" target=\"_blank\" rel=\"noreferrer\"\u003eIoTize\u003c/a\u003e project, endorsed by the SCS and Minalogic\nclusters, set out to connect embedded systems to smartphones through NFC\nmodules. The aim was twofold: to give embedded devices shared, usable human\ninterfaces, and to give unconnected objects a gateway to the Internet. The\nmodules fit most embedded systems using a process patented by KEOLABS in 2014.\u003c/p\u003e\n\u003cp\u003eThe consortium brought together five partners: KEOLABS, STMicroelectronics\n(Rousset), Gemalto, ISEN-Toulon and LIG-INP, with an advisory panel of companies\ncontributing to the specification and testing of the solution. IoTize addressed\nspecific needs of the IoT market with a complete path from microcontroller to\nInternet server. Its defining feature is how easily it integrates into most\nembedded systems, often requiring neither software nor hardware development: a\nset of software tools adapts it to the embedded application by configuration\nalone.\u003c/p\u003e","title":"FUI IoTize 2015–2018"},{"content":"The IoTize project was launched on Thursday 30 April at Keolabs in Montbonnot.\n","date":"30 April 2015","permalink":"https://drakkar.imag.fr/news/lancement-du-projet-iotize/","section":"News","summary":"\u003cp\u003eThe \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/fui-iotize-2015-2018/\"\u003eIoTize\u003c/a\u003e project was launched on\n\u003cstrong\u003eThursday 30 April\u003c/strong\u003e at Keolabs in Montbonnot.\u003c/p\u003e","title":"IoTize kick-off"},{"content":"Energy Efficient Protocols for Harvested Wireless Sensor Networks #Soutenance prévue le jeudi 17 mars 2015 à 14h à l’Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d’Hères - Amphi E\nAbstract\nThis thesis concerns energy efficient protocols for harvested wireless sensor networks. It is a part of an industrial Internet of Things project. STMicroelectronics started the GreenNet project with the objective to develop and design a new generation of harvesting smart objects to be integrated in the Internet of Things. The GreenNet platform is novel with respect to the existing solutions due to its small size that implies a small energy buffer and small harvesting capabilities. This aspect makes the standard protocols and precedent solutions not directly applicable on this extremely low power platform. In this dissertation, we analyse standard protocols and existing solutions to identify their issues in the GreenNet platform. Then, we provide protocol and algorithm adaptations to make feasible the concept of auto configurable and sustainable networks of GreenNet nodes. We proposed MCBT, an energy efficient protocol for the bootstrap procedure. It enables low power nodes to be enrolled in multi-hop multi-channel wireless sensor networks thanks to the network support for enrolling new nodes. It represents an energy efficient solution that extends the standard protocol. We proposed STADA, a sustainable algorithm to adapt the node activity according to the available energy and traffic conditions. STADA is based on a weighted function that takes into account the energy present in the battery, the energy harvesting rate, and network traffic. In this way, the algorithm takes into account all main parameters to adapt the energy consumption and improve the node performance. To make the harvested network more efficient according to light variations, we proposed a novel metric that makes the path choice a simple process. With the Expected Delay, we synthesize all network parameters in a single monotonic variable that facilitates the path choice in multi-hop harvesting wireless sensor networks. All proposed solutions are designed to work with standard beacon-enabled IEEE 802.15.4 protocols and are easily portable on the future version of IEEE 802.15.4e. We validated the proposed protocols with emulations and simulations. The evaluation results shown better performance in terms of energy consumption and quality of service.\n","date":"17 March 2015","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-gabriele-romaniello-17-mars/","section":"News","summary":"\u003ch3 id=\"energy-efficient-protocols-for-harvested-wireless-sensor-networks\" class=\"relative group\"\u003eEnergy Efficient Protocols for Harvested Wireless Sensor Networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#energy-efficient-protocols-for-harvested-wireless-sensor-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le jeudi \u003cstrong\u003e17 mars 2015 à 14h\u003c/strong\u003e à l’Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d’Hères - Amphi E\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbstract\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThis thesis concerns energy efficient protocols for harvested wireless sensor networks. It is a part of an industrial Internet of Things project. STMicroelectronics started the GreenNet project with the objective to develop and design a new generation of harvesting smart objects to be integrated in the Internet of Things. The GreenNet platform is novel with respect to the existing solutions due to its small size that implies a small energy buffer and small harvesting capabilities. This aspect makes the standard protocols and precedent solutions not directly applicable on this extremely low power platform. In this dissertation, we analyse standard protocols and existing solutions to identify their issues in the GreenNet platform. Then, we provide protocol and algorithm adaptations to make feasible the concept of auto configurable and sustainable networks of GreenNet nodes. We proposed MCBT, an energy efficient protocol for the bootstrap procedure. It enables low power nodes to be enrolled in multi-hop multi-channel wireless sensor networks thanks to the network support for enrolling new nodes. It represents an energy efficient solution that extends the standard protocol. We proposed STADA, a sustainable algorithm to adapt the node activity according to the available energy and traffic conditions. STADA is based on a weighted function that takes into account the energy present in the battery, the energy harvesting rate, and network traffic. In this way, the algorithm takes into account all main parameters to adapt the energy consumption and improve the node performance. To make the harvested network more efficient according to light variations, we proposed a novel metric that makes the path choice a simple process. With the Expected Delay, we synthesize all network parameters in a single monotonic variable that facilitates the path choice in multi-hop harvesting wireless sensor networks. All proposed solutions are designed to work with standard beacon-enabled IEEE 802.15.4 protocols and are easily portable on the future version of IEEE 802.15.4e. We validated the proposed protocols with emulations and simulations. The evaluation results shown better performance in terms of energy consumption and quality of service.\u003c/p\u003e","title":"Thesis defense — Gabriele Romaniello — March 17"},{"content":"With the availability of cheap broadband connectivity, Internet access from the home has become a ubiquity. Modern households host a multitude of networked devices, ranging from personal devices such as laptops and smartphones to printers and media centers. These devices connect among themselves and to the Internet via a local-area network—a home network— that has become an important part of the “Internet experience”, and consequently, has started to attract the interest of the network monitoring community. Our long-term goal is to assist users with concrete indicators of the causes of potential problems and—ideally—ways to fix them. In this talk, I’ll present our research in home network diagnosis.\n","date":"23 February 2015","permalink":"https://drakkar.imag.fr/news/measuring-internet-experience-from-home-networks-renata-cruz-teixeira-feb-23/","section":"News","summary":"\u003cp\u003eWith the availability of cheap broadband connectivity, Internet access from the home has become a ubiquity. Modern households host a multitude of networked devices, ranging from personal devices such as laptops and smartphones to printers and media centers. These devices connect among themselves and to the Internet via a local-area network—a home network— that has become an important part of the “Internet experience”, and consequently, has started to attract the interest of the network monitoring community. Our long-term goal is to assist users with concrete indicators of the causes of potential problems and—ideally—ways to fix them. In this talk, I’ll present our research in home network diagnosis.\u003c/p\u003e","title":"Measuring Internet Experience from Home Networks — Renata Cruz Teixeira — Feb. 23"},{"content":"ISPs\u0026rsquo; number-one problem is home network troubleshooting, with Wi-Fi related questions causing the large majority of complaints. Together with a major European NSP, Technicolor, who is providing home gateways (HGWs) to many broadband and cable service providers worldwide, has launched a new initiative to diagnose home network problems from the operational HGW. The talk will describe this effort (platform, and early observations) and show how we manage to (1) track performance problems in home networks and (2) infer personal information from purely technical data such as traffic counters, IP addresses, ARP tables.\n","date":"23 February 2015","permalink":"https://drakkar.imag.fr/news/troubleshooting-home-networks-from-home-gateways-christophe-diot-feb-23/","section":"News","summary":"\u003cp\u003eISPs\u0026rsquo; number-one problem is home network troubleshooting, with Wi-Fi related questions causing the large majority of complaints. Together with a major European NSP, Technicolor, who is providing home gateways (HGWs) to many broadband and cable service providers worldwide, has launched a new initiative to diagnose home network problems from the operational HGW.\nThe talk will describe this effort (platform, and early observations) and show how we manage to (1) track performance problems in home networks and (2) infer personal information from purely technical data such as traffic counters, IP addresses, ARP tables.\u003c/p\u003e","title":"Troubleshooting home networks from Home Gateways — Christophe Diot — Feb. 23"},{"content":"Distributed Self-Stabilizing Algorithms: Implementing the Silence to Reduce Energy Consumption (PDF)\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/distributed-self-stabilizing-algorithms-implementing-the-silence-to-reduce-energy-consumption/","section":"Join us","summary":"\u003cp\u003e\u003ca href=\"https://persyval-lab.org/fr/research/m2r/distributed-self-stabilizing-algorithms-implementing-silence-reduce-energy-consumption\" target=\"_blank\" rel=\"noreferrer\"\u003eDistributed Self-Stabilizing Algorithms: Implementing the Silence to Reduce Energy Consumption\u003c/a\u003e (\u003ca href=\"http://www-verimag.imag.fr/~altisen/sujet-dacraw-2015.pdf\" target=\"_blank\" rel=\"noreferrer\"\u003ePDF\u003c/a\u003e)\u003c/p\u003e","title":"Distributed Self-Stabilizing Algorithms: Implementing the Silence to Reduce Energy Consumption"},{"content":"PhD thesis: DataTweet\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/pierre-brunisholz/","section":"Members","summary":"\u003cp\u003ePhD thesis: \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/anr-datatweet-2013-2016/\"\u003eDataTweet\u003c/a\u003e\u003c/p\u003e","title":"Pierre Brunisholz"},{"content":"Several master\u0026rsquo;s students join the Drakkar group for a research internship each year. You can apply through M2R Informatique, or through MoSIG if you want to study in English.\nYou can also apply for an internship in the group on its own.\nContact the head of the group.\n","date":null,"permalink":"https://drakkar.imag.fr/join/internships/informations-sur-les-stages-master-recherche/","section":"Join us","summary":"How to join the Drakkar group for an internship","title":"Research internship in the Drakkar group"},{"content":"Persyval exploratory project\nScientific context #The Internet of Things (IoT) as it is defined today aims to interconnect physical objects using Internet technologies. This brings two complementary scenarios in the picture: Machine to Machine interaction, where connected smart objects can interact autonomously with each other, and physical world interaction, where sensors quantify their surroundings and actuators may act upon their immediate environment. These networks are envisioned as a major source of data, stored remotely in the cloud for later analysis, hence contributing to the rise of Big Data.\nProject summary #Our main objective is to provide the means to operate a WSN with TSCH in a fully distributed manner, namely without using any centralized entities. To reach this goal, our work needs to focus on MAC and routing. It will address three distinct but combined objectives:\ncompute and allocate, in a distributed way, global schedules of cells that will guarantee required properties — e.g. short delay; compute suitable paths with a distributed routing algorithm on which to build the aforementioned schedules; perform neighbor maintenance to discover new nodes and maintain connectivity with nodes of interest, on which we can rely to provide efficient routing. Keywords: Wireless Sensor Networks, Distributed Algorithms, Medium Access Control, Routing, Clustering.\nMembers #Faculties\nOlivier Alphand, Grenoble INP—LIG Karine Altisen, Grenoble INP—Verimag Stéphane Devismes, UJF—Verimag Franck Rousseau, Grenoble INP—LIG Bernard Tourancheau, UJF—LIG Interns\nMarine Kadar, TSCH scheduling with a distributed local algorithm, Enismag 1A (L3) Timothy Claeys, Commissioning in a channel-hopping time-synchronized wireless sensor network, M2 Aymeric Séguret, Impact of timer policies on the efficiency of silent self-stabilizing algorithms, M1 Cheikh Diop, Initialisation d\u0026rsquo;un réseau de capteurs à protocole synchronisé et saut de canal, Enismag 2A (M1) Anaïs Durand, Self-Stabilizing Leader Election in Polynomial Steps, M2 (now PhD candidate) Rodolphe Bertolini, Distributed Approach of Cross-Layer Resource Allocator in Wireless Sensor Networks, M1 Publications # Karine Altisen, Stéphane Devismes, Anaïs Durand, Franck Petit. Gradual Stabilization under τ-Dynamics. Europar 2016, Aug 2016, Grenoble, France. Karine Altisen, Stéphane Devismes, Anaïs Durand. Concurrency in Snap-Stabilizing Local Resource Allocation. Journal of Parallel and Distributed Computing, Elsevier, 2016. Karine Altisen, Alain Cournier, Stéphane Devismes, Anaïs Durand, Franck Petit. Self-Stabilizing Leader Election in Polynomial Steps. SSS'2014, 16th International Symposium on Stabilization, Safety, and Security of Distributed Systems, Sep 2014, Paderborn, Germany. Springer, 8756, pp.106-119, 2014, Lecture Notes in Computer Science. Michał Król, Franck Rousseau, Andrzej Duda. Représentation compacte des adresses pour le routage par caractéristiques. Actes des Rencontres Francophones pour les Aspects Algorithmiques des Télécommunications (AlgoTel 2014), Le Bois-Plage-en-Ré, France, juin 2014. Iacob Juc, Olivier Alphand, Roberto Guizzetti, Michel Favre, Andrzej Duda. Energy Consumption and Performance of IEEE 802.15.4e TSCH and DSME. Proc. of the IEEE Wireless Communications and Networking Conference (WCNC), Apr 2016, Doha, Qatar. IEEE, Proc. of the IEEE Wireless Communications and Networking Conference (WCNC), 2016. Karine Altisen, Stéphane Devismes. Stabilisation Instantanée Probabiliste. Actes des Rencontres Francophones pour les Aspects Algorithmiques des Télécommunications (AlgoTel 2014), Le Bois-Plage-en-Ré, France, juin 2014. ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-persyval-dacraw-2014-2015/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://persyval-lab.org\" target=\"_blank\" rel=\"noreferrer\"\u003ePersyval\u003c/a\u003e exploratory project\u003c/p\u003e\n\u003ch3 id=\"scientific-context\" class=\"relative group\"\u003eScientific context \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#scientific-context\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003e\u003cstrong\u003eThe Internet of Things\u003c/strong\u003e (IoT) as it is defined today aims to interconnect physical objects using Internet technologies. This brings two complementary scenarios in the picture: \u003cem\u003eMachine to Machine interaction\u003c/em\u003e, where connected smart objects can interact autonomously with each other, and \u003cem\u003ephysical world interaction\u003c/em\u003e, where sensors quantify their surroundings and actuators may act upon their immediate environment. These networks are envisioned as a major source of data, stored remotely in the cloud for later analysis, hence contributing to the rise of \u003cem\u003eBig Data\u003c/em\u003e.\u003c/p\u003e","title":"ANR Persyval DACRAW 2014–2015"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/iacob-juc/","section":"Members","summary":"","title":"Iacob Juc"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/liviu-varga/","section":"Members","summary":"","title":"Liviu Varga"},{"content":"One aim of the workshop is to share the experience gained with sensor networks across the Grenoble area, and to look for possible synergies between the groups working on them.\n","date":null,"permalink":"https://drakkar.imag.fr/partnerships/events/workshop-grenoble-wsn/","section":"Partnerships \u0026 events","summary":"\u003cp\u003eOne aim of the workshop is to share the experience gained with sensor networks\nacross the Grenoble area, and to look for possible synergies between the groups\nworking on them.\u003c/p\u003e","title":"Workshop Grenoble-WSN"},{"content":"Cross-Layer Techniques for Wireless Local Area Networks #Soutenance prévue le jeudi 19 décembre 2013 à 14h à l\u0026rsquo;Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\nAbstract\nIn this dissertation, we examine important aspects of infrastructure IEEE 802.11 Wireless Local Area Networks (WLANs) and identify issues that can affect their performance. Reviewing the state of the art, we observe that numerous research efforts have proposed diverse solutions with several limitations that impede their deployment in existing WLANs. Moreover, users have ever-increasing expectations of availability, reliability, instantaneous response and security from their wireless connections. Motivated by these challenges, we design and implement novel but practical solutions that address open issues affecting the performance of IEEE 802.11 WLANs. We adopt an Access Point (AP)-based approach, which does not require any modification in the clients. We focus on the following aspects of WLANs: client mobility, channel management, and quality of service, and explore three different scenarios for the most common deployments: an enterprise, a city (urban area), and a personal residence (home). To provide a common basis for practical implementation of new 802.11 solutions, we present a Smart AP model, inspired by self-management techniques. The main contributions of this thesis are:\nWe develop a seamless mobility solution for Voice over IP (VoIP) services in Enterprise WLANs, called Multichannel Virtual Access Point (mVAP), which requires no client modifications and is compatible with current devices. We implement and evaluate mVAP using commodity 802.11 hardware, and achieve transparent mobility without interruption or degradation of ongoing communications. We investigate the feasibility of harnessing the existing WiFi coverage in urban areas for mobile Internet access, through trace-based simulations using real data collected by mobile phones. The results show that the WiFi coverage is large and the connectivity it offers can be effectively exploited. We identify open issues for the actual deployment of such a citywide WiFi network and the applications that could benefit from it. We propose an adaptive traffic-aware channel selection mechanism for Home WLANs, that uses the time-varying traffic load for interference estimation. We implement this solution using commodity 802.11 hardware and experimentally evaluate it: the network performance is drastically improved by constantly picking the channel with the least interference. ","date":"2 December 2013","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-maria-eugenia-berezin-19-decembre/","section":"News","summary":"\u003ch3 id=\"cross-layer-techniques-for-wireless-local-area-networks\" class=\"relative group\"\u003eCross-Layer Techniques for Wireless Local Area Networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#cross-layer-techniques-for-wireless-local-area-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le jeudi \u003cstrong\u003e19 décembre 2013 à 14h\u003c/strong\u003e à l\u0026rsquo;Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbstract\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eIn this dissertation, we examine important aspects of infrastructure IEEE 802.11 Wireless Local Area Networks (WLANs) and identify issues that can affect their performance. Reviewing the state of the art, we observe that numerous research efforts have proposed diverse solutions with several limitations that impede their deployment in existing WLANs. Moreover, users have ever-increasing expectations of availability, reliability, instantaneous response and security from their wireless connections.\nMotivated by these challenges, we design and implement novel but practical solutions that address open issues affecting the performance of IEEE 802.11 WLANs. We adopt an Access Point (AP)-based approach, which does not require any modification in the clients. We focus on the following aspects of WLANs: client mobility, channel management, and quality of service, and explore three different scenarios for the most common deployments: an enterprise, a city (urban area), and a personal residence (home). To provide a common basis for practical implementation of new 802.11 solutions, we present a Smart AP model, inspired by self-management techniques.\nThe main contributions of this thesis are:\u003c/p\u003e","title":"Thesis defense — Maria Eugenia Berezin — December 19"},{"content":"The WalT project keeps going on as an internal project. It is fully open and you can contribute.\nCheck WalT on our gitlab.\nWalT: A Reproducible Testbed for Reproducible Network Experiments\nThis project aims to build a cheap, highly configurable networked testbed for wireless experiments.\nFunded by Université Grenoble Alpes, Grenoble INP / UJF, AGIR 2013–2014\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/agir-walt-2013-2014/","section":"Projects","summary":"\u003cp\u003eThe WalT project keeps going on as an internal project. It is fully open and you can contribute.\u003c/p\u003e\n\u003cp\u003eCheck \u003ca href=\"https://gricad-gitlab.univ-grenoble-alpes.fr/Drakkar-LIG/WalT/wikis/home\" target=\"_blank\" rel=\"noreferrer\"\u003eWalT\u003c/a\u003e on our gitlab.\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://hal.archives-ouvertes.fr/hal-01287566\" target=\"_blank\" rel=\"noreferrer\"\u003eWalT: A Reproducible Testbed for Reproducible Network Experiments\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eThis project aims to build a cheap, highly configurable networked testbed for wireless experiments.\u003c/p\u003e\n\u003cp\u003eFunded by Université Grenoble Alpes, Grenoble INP / UJF, AGIR 2013–2014\u003c/p\u003e","title":"AGIR WalT 2013–2014"},{"content":"Qualité des liens dans les réseaux de capteurs sans fil #Soutenance prévue le mardi 19 novembre 2013 à 14h dans l\u0026rsquo;Amphi Vaujany au CNAM, 701 rue de la Piscine, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\nAbstract\nThe goal of the thesis is to investigate the issues related to the temporal link quality variation in large scale WSN environments, to design energy efficient link quality estimators able to distinguish among links with different quality on a short and a long term. First, we investigate the characteristics of two physical layer metrics: RSSI (Received Signal Strength Indication) and LQI (Link Quality Indication) on SensLAB, an indoor large scale wireless sensor network testbed. We observe that RSSI and LQI have distinct values that can discriminate the quality of links. Second, to obtain an estimator of PRR (Packet Reception Ratio), we have fitted a Fermi-Dirac function to the scatter diagram of the average and standard variation of LQI and RSSI. The function enables us to find PRR for a given level of LQI. We evaluate the estimator by computing PRR over a varying size window of transmissions and comparing with the estimator. Furthermore, we show using the Gilbert-Elliot two-state Markov model that the correlation of packet losses and successful receptions depend on the link category. The model allows to accurately distinguish among strongly varying intermediate links based on transition probabilities derived from the average and the standard variation of LQI. Finally, we propose a link quality routing model driven from the F-D fitting functions and the Markov model able to discriminate accurately link categories as well as high variable links.\nKeywords: Received Signal Strength indicator (RSSI), Link quality indicator (LQI), Link quality, Indoor Senslab-testbed, RPL, uIPv6, Duty Cycle Medium Access Control (MAC), Wireless sensor networks (WSN).\n","date":"1 November 2013","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-ana-bildea-19-novembre/","section":"News","summary":"\u003ch3 id=\"qualité-des-liens-dans-les-réseaux-de-capteurs-sans-fil\" class=\"relative group\"\u003eQualité des liens dans les réseaux de capteurs sans fil \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#qualit%c3%a9-des-liens-dans-les-r%c3%a9seaux-de-capteurs-sans-fil\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le mardi \u003cstrong\u003e19 novembre 2013 à 14h\u003c/strong\u003e dans l\u0026rsquo;Amphi Vaujany au CNAM, 701 rue de la Piscine, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbstract\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe goal of the thesis is to investigate the issues related to the temporal link quality variation in large scale WSN environments, to design energy efficient link quality estimators able to distinguish among links with different quality on a short and a long\nterm.\nFirst, we investigate the characteristics of two physical layer metrics: RSSI (Received Signal Strength Indication) and LQI (Link Quality Indication) on SensLAB, an indoor large scale wireless sensor network testbed. We observe that RSSI and LQI have distinct values that can discriminate the quality of links.\nSecond, to obtain an estimator of PRR (Packet Reception Ratio), we have fitted a Fermi-Dirac function to the scatter diagram of the average and standard variation of LQI and RSSI. The function enables us to find PRR for a given level of LQI. We evaluate the estimator by computing PRR over a varying size window of transmissions and comparing with the estimator.\nFurthermore, we show using the Gilbert-Elliot two-state Markov model that the correlation of packet losses and successful receptions depend on the link category. The model allows to accurately distinguish among strongly varying intermediate links based on transition probabilities derived from the average and the standard variation of LQI.\nFinally, we propose a link quality routing model driven from the F-D fitting functions and the Markov model able to discriminate accurately link categories as well as high variable links.\u003c/p\u003e","title":"Thesis defense — Ana Bildea — November 19"},{"content":"The DataTweet project proposes to explore the idea of a ubiquitous public data service for transmitting short messages in a similar way to Twitter. Any user of the service will be able to send a short message at a very low rate to some destination address over various access networks: open 802.11 hotspots, base stations of LTE, car-to-infrastructure stations of 802.11p. The user sends its message to the nearest wireless network at hand (for instance a 802.11 hotspot) that will forward it in a multihop way to the destination by the elements of the infrastructure network.\nhttps://datatweet.imag.fr/\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-datatweet-2013-2016/","section":"Projects","summary":"\u003cp\u003eThe DataTweet project proposes to explore the idea of a ubiquitous public data service for transmitting short messages in a similar way to Twitter. Any user of the service will be able to send a short message at a very low rate to some destination address over various access networks: open 802.11 hotspots, base stations of LTE, car-to-infrastructure stations of 802.11p. The user sends its message to the nearest wireless network at hand (for instance a 802.11 hotspot) that will forward it in a multihop way to the destination by the elements of the infrastructure network.\u003c/p\u003e","title":"ANR DataTweet 2013–2016"},{"content":"IPv6 protocols for powerline communication sensor network #The defence will take place on Thursday 10 October 2013 at 10:00 in the Amphithéâtre Chabauty, Institut Fourier, 100 rue des Mathématiques, 38402 Saint-Martin-d\u0026rsquo;Hères.\nAbstract #This thesis demonstrate the relevance of Powerline Communication (PLC) usage for sensor networks applications. We focus in particular on the low power and low data rate PLC technology \u0026ldquo;Watt Pulse Communication\u0026rdquo; (WPC) developed by the Watteco company and justify its usage for sensor network applications. We situate the WPC technology in the PLC landscape and define compatible protocols. We then describe the WPC module and the PLC media implementation in the COOJA network simulator. This allows us to propose a network solution over this technology, leveraging on the adaptation of the 802.15.4 standard over the WPC technology. We then demonstrate the benefit of media convergence at the network layer level, with the use of the IPv6 standard that we adapted over our PLC solution thanks to the 6LoWPAN protocol. We justify the usage of standards protocols over our PLC solution and show that a routing solutions must be developed over WPC. We show through experiments that our PLC solution match low power and lossy network (LLNs) criterions for which the RPL standard protocol has been designed. We justify the usage of this routing protocol over our PLC solution, and validate its implementation through 2 experiments conducted in tertiary types buildings. Respectively composed of 7 and 26 PLC nodes, results show that the routing topology created by RPL enable the coverage an entire floor of a tertiary building with a tree based topology and 3 hops maximum path length. We also show that the WPC technology exhibits a high connectivity between nodes and that the link quality is highly dynamic. Though, we observed that the routing topology was able to handle these variations. We point out the limitations of our PLC solution, which presents high delays and low throughput, creating high constraints on applications. Our sensor network solution over PLC relies on the IP standard, enabling packets exchanges with other technologies using the same protocol. In particular, we study the possibility to create heterogeneous networks mixing the WPC technology with 802.15.4 radio. We show that our protocol stack used over PLC enable to create this type of network, in order to benefit from the best of these 2 worlds. We purpose an architecture of a hybrid Radio / PLC node enabling to transfer packets between these 2 media. Then, we show that the combined usage of these 2 media increase the number of available paths and facilitate the routing, while diminishing the number of hops and possible unreachability of nodes. We then demonstrate that the addition of PLC and Radio/PLC nodes in a RF based battery powered sensor network enable to relieve their routing charge in order to expand their lifetime. We then continue the energy study with a power consumption optimization of a wireless sensor network platform from the hardware and software standpoint. We first determine the operating frequency, the wake up frequency and the mode of operation of the micro controller offering the lowest power consumption. We then conduct an energy study of 4 different radio transceivers using the 2.4 GHz and 868 MHz frequency band, in order to determine the most efficient architecture. We determine the protocols parameters and the software optimization to reach the lower power consumption of this architecture. Finally, we realize the energy study of several probes than can be embedded on the node, according to their nature and functioning mode. Our final architecture exhibits a total power consumption that is lower than 17 μW, with an applicative reporting each 10 minutes and the maintenance of the reachability with the network. We also mention in annex parts our implication in standards developments organizations such as the IETF a the IPSO alliance, that allow us to validate the implementation of our solution through interoperability events.\nThe full text is available on HAL: tel-01168472.\n","date":"1 October 2013","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-cedric-chauvenet-10-octobre/","section":"News","summary":"\u003ch3 id=\"ipv6-protocols-for-powerline-communication-sensor-network\" class=\"relative group\"\u003eIPv6 protocols for powerline communication sensor network \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#ipv6-protocols-for-powerline-communication-sensor-network\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThe defence will take place on \u003cstrong\u003eThursday 10 October 2013 at 10:00\u003c/strong\u003e in the Amphithéâtre Chabauty, Institut Fourier, 100 rue des Mathématiques, 38402 Saint-Martin-d\u0026rsquo;Hères.\u003c/p\u003e\n\u003ch3 id=\"abstract\" class=\"relative group\"\u003eAbstract \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#abstract\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eThis thesis demonstrate the relevance of Powerline Communication (PLC) usage for sensor networks applications. We focus in particular on the low power and low data rate PLC technology \u0026ldquo;Watt Pulse Communication\u0026rdquo; (WPC) developed by the Watteco company and justify its usage for sensor network applications. We situate the WPC technology in the PLC landscape and define compatible protocols. We then describe the WPC module and the PLC media implementation in the COOJA network simulator. This allows us to propose a network solution over this technology, leveraging on the adaptation of the 802.15.4 standard over the WPC technology. We then demonstrate the benefit of media convergence at the network layer level, with the use of the IPv6 standard that we adapted over our PLC solution thanks to the 6LoWPAN protocol. We justify the usage of standards protocols over our PLC solution and show that a routing solutions must be developed over WPC. We show through experiments that our PLC solution match low power and lossy network (LLNs) criterions for which the RPL standard protocol has been designed. We justify the usage of this routing protocol over our PLC solution, and validate its implementation through 2 experiments conducted in tertiary types buildings. Respectively composed of 7 and 26 PLC nodes, results show that the routing topology created by RPL enable the coverage an entire floor of a tertiary building with a tree based topology and 3 hops maximum path length. We also show that the WPC technology exhibits a high connectivity between nodes and that the link quality is highly dynamic. Though, we observed that the routing topology was able to handle these variations. We point out the limitations of our PLC solution, which presents high delays and low throughput, creating high constraints on applications. Our sensor network solution over PLC relies on the IP standard, enabling packets exchanges with other technologies using the same protocol. In particular, we study the possibility to create heterogeneous networks mixing the WPC technology with 802.15.4 radio. We show that our protocol stack used over PLC enable to create this type of network, in order to benefit from the best of these 2 worlds. We purpose an architecture of a hybrid Radio / PLC node enabling to transfer packets between these 2 media. Then, we show that the combined usage of these 2 media increase the number of available paths and facilitate the routing, while diminishing the number of hops and possible unreachability of nodes. We then demonstrate that the addition of PLC and Radio/PLC nodes in a RF based battery powered sensor network enable to relieve their routing charge in order to expand their lifetime. We then continue the energy study with a power consumption optimization of a wireless sensor network platform from the hardware and software standpoint. We first determine the operating frequency, the wake up frequency and the mode of operation of the micro controller offering the lowest power consumption. We then conduct an energy study of 4 different radio transceivers using the 2.4 GHz and 868 MHz frequency band, in order to determine the most efficient architecture. We determine the protocols parameters and the software optimization to reach the lower power consumption of this architecture. Finally, we realize the energy study of several probes than can be embedded on the node, according to their nature and functioning mode. Our final architecture exhibits a total power consumption that is lower than 17 μW, with an applicative reporting each 10 minutes and the maintenance of the reachability with the network. We also mention in annex parts our implication in standards developments organizations such as the IETF a the IPSO alliance, that allow us to validate the implementation of our solution through interoperability events.\u003c/p\u003e","title":"Thesis defense — Cédric Chauvenet — October 10"},{"content":"Smarter Radios for Energy Efficiency in Wireless Sensor Networks #Soutenance prévue le jeudi 3 octobre 2013 à 14h dans l\u0026rsquo;Amphi H à l\u0026rsquo;Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\nAbstract\nThe constraints of Wireless Sensor Networks scenarios require the introduction of optimization techniques at different design levels: from the hardware to the software and communication protocol stack. In fact, the design of energy efficient WSNs involves an appropriate Hardware/Software co-design oriented to the concerned application. Given the event driven and multitasking nature of WSNs applications, one could think of adding different processing units that cooperate to manage events and tasks in an optimal way. Then, the complexity of tasks performed by the main processing unit can be reduced and energy efficiency can be achieved. In this PhD thesis we study protocols that leverage the implementation of smart radios. The idea of smart radios is introducing intelligence into the radio chip; in this way, it will be able to take decisions and perform several tasks in an autonomous way and without any intervention of the main CPU. The CPU will be charged of bootstrapping the network and, after a stable state is reached, it can remain inactive most of the time while the radio chip provides a given set of services. The proposed protocol is called Wake on Idle and it provides integrated neighborhood maintenance and low duty-cycle medium access control. These services are provided based on analog transmissions that are time encoded; then, as soon as the network enters the stable state ( i.e. the topology is formed and nodes are associated and synchronized) digital processing of frames is not needed. Since it relies on low level information, Wake on Idle can be easily implemented on hardware and integrated into the radio chip; then, it works as a coprocessor that provides high level services ( i.e. neighborhood maintenance and medium access) to the main processing unit. Through theoretical analysis and a preliminary implementation we demonstrate the feasibility of the protocol and we show several interesting characteristics that help achieving energy efficiency and good performance. Then, we further exploit analog signaling to optimize duty cycle of existing medium access control protocols. We propose a mechanism called Sleep on Idle and it is based on the exchange of analog busy tones. Sleep on Idle can also be integrated into the smart radio to take decisions about whether the CPU has to be woken up. We apply the decision mechanism to the slotted IEEE802.15.4 standard and validate it through simulations and experimentations. The results show an important gain in terms of energy consumption and network reactivity.\n","date":"1 October 2013","permalink":"https://drakkar.imag.fr/news/soutenance-de-these-isabel-vergara-3-octobre/","section":"News","summary":"\u003ch3 id=\"smarter-radios-for-energy-efficiency-in-wireless-sensor-networks\" class=\"relative group\"\u003eSmarter Radios for Energy Efficiency in Wireless Sensor Networks \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#smarter-radios-for-energy-efficiency-in-wireless-sensor-networks\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eSoutenance prévue le jeudi \u003cstrong\u003e3 octobre 2013 à 14h\u003c/strong\u003e dans l\u0026rsquo;Amphi H à l\u0026rsquo;Ensimag, 681 rue de la Passerelle, Domaine universitaire, 38402 Saint Martin d\u0026rsquo;Hères\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbstract\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe constraints of Wireless Sensor Networks scenarios require the introduction of optimization techniques at different design levels: from the hardware to the software and communication protocol stack. In fact, the design of energy efficient WSNs involves an appropriate Hardware/Software co-design oriented to the concerned application. Given the event driven and multitasking nature of WSNs applications, one could think of adding different processing units that cooperate to manage events and tasks in an optimal way. Then, the complexity of tasks performed by the main processing unit can be reduced and energy efficiency can be achieved. In this PhD thesis we study protocols that leverage the implementation of smart radios. The idea of smart radios is introducing intelligence into the radio chip; in this way, it will be able to take decisions and perform several tasks in an autonomous way and without any intervention of the main CPU. The CPU will be charged of bootstrapping the network and, after a stable state is reached, it can remain inactive most of the time while the radio chip provides a given set of services. The proposed protocol is called Wake on Idle and it provides integrated neighborhood maintenance and low duty-cycle medium access control. These services are provided based on analog transmissions that are time encoded; then, as soon as the network enters the stable state ( i.e. the topology is formed and nodes are associated and synchronized) digital processing of frames is not needed. Since it relies on low level information, Wake on Idle can be easily implemented on hardware and integrated into the radio chip; then, it works as a coprocessor that provides high level services ( i.e. neighborhood maintenance and medium access) to the main processing unit. Through theoretical analysis and a preliminary implementation we demonstrate the feasibility of the protocol and we show several interesting characteristics that help achieving energy efficiency and good performance. Then, we further exploit analog signaling to optimize duty cycle of existing medium access control protocols. We propose a mechanism called Sleep on Idle and it is based on the exchange of analog busy tones. Sleep on Idle can also be integrated into the smart radio to take decisions about whether the CPU has to be woken up. We apply the decision mechanism to the slotted IEEE802.15.4 standard and validate it through simulations and experimentations. The results show an important gain in terms of energy consumption and network reactivity.\u003c/p\u003e","title":"Thesis defense — Isabel Vergara — October 3"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/tristan-braud/","section":"Members","summary":"","title":"Tristan Braud"},{"content":"I am a Research Engineer at the LIG laboratory, working with several Research teams. Lately, I have been mainly working with1:\nDrakkar Steamer Slide I obtained a master\u0026rsquo;s degree in computer science at ISIMA, a French grande école, in 2002. I then worked in industry at Vertech\u0026rsquo; until 2008. At that point I was hired by CNRS, with a position at UREC and then at LIG.\nMy work is mostly about ambient intelligence. I authored several open source tools (debootstick, ipv6 care, pyc2py, etc.). I also wrote a few articles for popular French IT magazines GNU/Linux Magazine France and Open Silicium, about various topics.\nI won the International Obfuscated C Code Contest (IOCCC) in 2015.\nYou can find me at the IMAG building, room 426 or email me.\nPostal address: Bureau 426 - CNRS / LIG - Bâtiment IMAG 700 avenue Centrale - 38401 St Martin d\u0026rsquo;Hères\nAs an engineer I am also a member of LIG\u0026rsquo;s multidisciplinary engineering team.\u0026#160;\u0026#x21a9;\u0026#xfe0e;\n","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/etienne-duble/","section":"Members","summary":"\u003cp\u003eI am a Research Engineer at the LIG laboratory, working with several Research teams. Lately, I have been mainly working with\u003csup id=\"fnref:1\"\u003e\u003ca href=\"#fn:1\" class=\"footnote-ref\" role=\"doc-noteref\"\u003e1\u003c/a\u003e\u003c/sup\u003e:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http://drakkar.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eDrakkar\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"http://steamer.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eSteamer\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"http://slide.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eSlide\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eI obtained a master\u0026rsquo;s degree in computer science at \u003ca href=\"http://www.isima.fr\" target=\"_blank\" rel=\"noreferrer\"\u003eISIMA\u003c/a\u003e, a French \u003cem\u003egrande école\u003c/em\u003e, in 2002.\nI then worked in industry at \u003ca href=\"http://vertech.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eVertech\u0026rsquo;\u003c/a\u003e until 2008.\nAt that point I was hired by CNRS, with a position at \u003ca href=\"https://www.projet-plume.org/ressource/urec\" target=\"_blank\" rel=\"noreferrer\"\u003eUREC\u003c/a\u003e and then at LIG.\u003c/p\u003e\n\u003cp\u003eMy work is mostly about \u003cem\u003eambient intelligence\u003c/em\u003e.\nI authored several open source tools (\u003ca href=\"https://github.com/drakkar-lig/debootstick\" target=\"_blank\" rel=\"noreferrer\"\u003edebootstick\u003c/a\u003e, \u003ca href=\"https://github.com/drakkar-lig/ipv6-care\" target=\"_blank\" rel=\"noreferrer\"\u003eipv6 care\u003c/a\u003e, \u003ca href=\"https://github.com/eduble/pyc2py\" target=\"_blank\" rel=\"noreferrer\"\u003epyc2py\u003c/a\u003e, etc.). I also wrote \u003ca href=\"https://connect.ed-diamond.com/auteur/view/9786-duble_etienne\" target=\"_blank\" rel=\"noreferrer\"\u003ea few articles\u003c/a\u003e for popular French IT magazines \u003ca href=\"https://connect.ed-diamond.com/gnu-linux-magazine\" target=\"_blank\" rel=\"noreferrer\"\u003eGNU/Linux Magazine France\u003c/a\u003e and \u003ca href=\"https://connect.ed-diamond.com/open-silicium\" target=\"_blank\" rel=\"noreferrer\"\u003eOpen Silicium\u003c/a\u003e, about various topics.\u003c/p\u003e","title":"Etienne Dublé"},{"content":"Bernard Tourancheau got MSc in Apply Maths from Grenoble University in 1986 and a MSc in Renewable Energy Science and Technology from Loughborough University in 2007. He was awarded best Computer Science PhD by Institut National Polytechnique of Grenoble in 1989 for his work on Parallel Computing for Distributed Memory Architectures. Working for the LIP laboratory, he was appointed assistant professor at Ecole Normale Supérieure de Lyon in 1989 before joining CNRS as a Senior Researcher. After initiating a CNRS-NSF collaboration, he worked two and half years on leave at the University of Tennessee on a senior researcher position with the US Center for Research in Parallel Computation at the ICL laboratory. He then took a Professor position at University of Lyon in 1995 where he created a research laboratory and the INRIA EPI RESO, specialized in High Speed Networking and HPC Clusters. In 2001, he joined SUN Microsystems Laboratories for a 6 years sabbatical as a Principal Investigator in the DARPA HPCS project where he lead the backplane networking group. Back in academia he oriented his research on sensor and actuator networks for building energy efficiency at LIP and CITI labs and associated INRIA EPI. He was appointed Professor at University Joseph Fourier of Grenoble in 2012. Since then, he is developing research at the LIG laboratory Drakkar team about protocols and architectures for sensor networks and their applications to energy efficiency in buildings as well as GPGPU algorithms\u0026rsquo; optimization. He has authored more than an hundred peer-reviewed publications and owns 8 patents.\n","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/bernard-tourancheau/","section":"Members","summary":"\u003cp\u003eBernard Tourancheau got MSc in Apply Maths from Grenoble University in 1986 and a MSc in Renewable Energy Science and Technology from Loughborough University in 2007. He was awarded best Computer Science PhD by Institut National Polytechnique of Grenoble in 1989 for his work on Parallel Computing for Distributed Memory Architectures.\nWorking for the LIP laboratory, he was appointed assistant professor at Ecole Normale Supérieure de Lyon in 1989 before joining CNRS as a Senior Researcher. After initiating a CNRS-NSF collaboration, he worked two and half years on leave at the University of Tennessee on a senior researcher position with the US Center for Research in Parallel Computation at the ICL laboratory.\nHe then took a Professor position at University of Lyon in 1995 where he created a research laboratory and the INRIA EPI RESO, specialized in High Speed Networking and HPC Clusters.\nIn 2001, he joined SUN Microsystems Laboratories for a 6 years sabbatical as a Principal Investigator in the DARPA HPCS project where he lead the backplane networking group.\nBack in academia he oriented his research on sensor and actuator networks for building energy efficiency at LIP and CITI labs and associated INRIA EPI.\nHe was appointed Professor at University Joseph Fourier of Grenoble in 2012. Since then, he is developing research at the LIG laboratory Drakkar team about protocols and architectures for sensor networks and their applications to energy efficiency in buildings as well as GPGPU algorithms\u0026rsquo; optimization.\nHe has authored more than an hundred peer-reviewed publications and owns 8 patents.\u003c/p\u003e","title":"Bernard Tourancheau"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/malisa-vucinic/","section":"Members","summary":"","title":"Malisa Vucinic"},{"content":"The WalT project is an internal project. It is fully open and you can contribute. It aims to build cheap, highly configurable networked testbeds for wireless experiments.\nWalT: A Reproducible Testbed for Reproducible Network Experiments\nSelf-funded through industrial partnerships.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/national/walt-project/","section":"Projects","summary":"\u003cp\u003eThe WalT project is an internal project. It is fully open and you can contribute.\nIt aims to build cheap, highly configurable networked testbeds for wireless experiments.\u003c/p\u003e\n\u003cp\u003e\u003ca href=\"https://hal.archives-ouvertes.fr/hal-01287566\" target=\"_blank\" rel=\"noreferrer\"\u003eWalT: A Reproducible Testbed for Reproducible Network Experiments\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eSelf-funded through industrial partnerships.\u003c/p\u003e","title":"WalT – since 2012"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/antonio-de-domenico/","section":"Members","summary":"","title":"Antonio De Domenico"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/gabriele-romaniello/","section":"Members","summary":"","title":"Gabriele Romaniello"},{"content":"Since September 2012 I have been a researcher at Walt Disney Research, Zurich (DRZ), in the wireless group.\nI received my PhD in computer science in June 2012, with a thesis entitled \u0026ldquo;Adaptive MAC for Heterogeneous Wireless Sensor Networks\u0026rdquo;, supervised by Prof. A. Duda. Throughout my PhD I worked at the Commissariat à l\u0026rsquo;Énergie Atomique (CEA) in Grenoble.\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/giorgio-corbellini/","section":"Members","summary":"\u003cp\u003eSince September 2012 I have been a researcher at Walt Disney Research, Zurich (DRZ), in the wireless group.\u003c/p\u003e\n\u003cp\u003eI received my PhD in computer science in June 2012, with a thesis entitled\n\u0026ldquo;Adaptive MAC for Heterogeneous Wireless Sensor Networks\u0026rdquo;, supervised by\nProf. A. Duda. Throughout my PhD I worked at the Commissariat à l\u0026rsquo;Énergie\nAtomique (CEA) in Grenoble.\u003c/p\u003e","title":"Giorgio Corbellini"},{"content":"PhD thesis: security in wireless sensor networks\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/jun-young-bae/","section":"Members","summary":"\u003cp\u003ePhD thesis: security in wireless sensor networks\u003c/p\u003e","title":"Jun-Young Bae"},{"content":"Iris website\nIRIS proposes to explore how Smart Objects can be interconnected and viewed as interoperable IP based end-hosts on the Internet thus making the Future Internet of Smart Objects happen and enabling the emergence of novel and exciting applications. We are not alone in seeing the vision of IP-based smart objects, as evidenced by the IPSO Alliance, IETF standards (6LoWPAN, ROLL, CoAP), and recent start-ups/companies that follow the same track. However, even though the IETF standardization process makes constant progress, there are still many research issues requiring investigation and the whole approach calls for experimental validation.\nObjectives of the Iris project.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-iris-2012-2014/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://www.anr-iris.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eIris website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eIRIS proposes to explore how Smart Objects can be interconnected and viewed as interoperable IP based end-hosts on the Internet thus making the Future Internet of Smart Objects happen and enabling the emergence of novel and exciting applications. We are not alone in seeing the vision of IP-based smart objects, as evidenced by the IPSO Alliance, IETF standards (6LoWPAN, ROLL, CoAP), and recent start-ups/companies that follow the same track. However, even though the IETF standardization process makes constant progress, there are still many research issues requiring investigation and the whole approach calls for experimental validation.\u003c/p\u003e","title":"ANR IRIS 2012–2014"},{"content":"Calipso website\nCALIPSO builds Internet Protocol (IP) connected smart object networks, but with novel methods to attain very low power consumption, thereby providing both interoperability and long lifetimes. CALIPSO leans on the significant body of work on sensor networks to integrate radio duty cycling and data-centric mechanisms into the IPv6 stack, something that existing work has not previously done. CALIPSO works at three layers: the network, the routing, and the application layer. We also revisit architectural decisions on naming, identification, and the use of middle-boxes.\nObjectives of the Calipso project.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/eu-ict-calipso-2011-2014/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://www.ict-calipso.eu/\" target=\"_blank\" rel=\"noreferrer\"\u003eCalipso website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eCALIPSO builds Internet Protocol (IP) connected smart object networks, but with novel methods to attain very low power consumption, thereby providing both interoperability and long lifetimes. CALIPSO leans on the significant body of work on sensor networks to integrate radio duty cycling and data-centric mechanisms into the IPv6 stack, something that existing work has not previously done. CALIPSO works at three layers: the network, the routing, and the application layer. We also revisit architectural decisions on naming, identification, and the use of middle-boxes.\u003c/p\u003e","title":"EU ICT CALIPSO 2011–2014"},{"content":"Ensimag D321.\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/chi-anh-la/","section":"Members","summary":"\u003cp\u003eEnsimag D321.\u003c/p\u003e","title":"Chi-Anh La"},{"content":"Since May 2011 I have been a post-doc at the Grenoble Institute of Technology, working with professors Martin Heusse and Andrzej Duda in the LIG laboratory, on MAC protocols for wireless sensor networks.\nBureau D106\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/ghalem-boudour/","section":"Members","summary":"\u003cp\u003eSince May 2011 I have been a post-doc at the Grenoble Institute of Technology, working with professors Martin Heusse and Andrzej Duda in the LIG laboratory, on MAC protocols for wireless sensor networks.\u003c/p\u003e\n\u003cp\u003eBureau D106\u003c/p\u003e","title":"Ghalem Boudour"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/protocols-for-energy-harvested-wireless-sensor-networks/","section":"Join us","summary":"","title":"Protocols for Energy Harvested Wireless Sensor Networks"},{"content":"LIG Laboratory, Drakkar group invites applications for a Post-Doc position (12 months):\nCapture-based MAC for Wireless Sensor Networks\nThe objective of this project is to investigate the capture effect in which one station can correctly receive a frame in spite of a collision. That understanding should then be used to design a medium access method that takes advantage of the capture effect.\nApplicants should have experience/knowledge in the following research areas:\nDigital transmission and modulation Network protocols Network simulation The applicant will be hired by Grenoble INP.\nSalary: 2968 euros gross. (Note: The net amount after the standard pension, health care, and tax withholding amounts is typically 0.8 times the gross salary.)\nApplicants should send a detailed CV and three references to Andrzej Duda\nClosing date for applications: January 15th, 2011\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/capture-based-mac-for-wireless-sensor-networks/","section":"Join us","summary":"\u003cp\u003eLIG Laboratory, \n      \n    \u003ca href=\"https://drakkar.imag.fr/\"\u003eDrakkar\u003c/a\u003e group invites applications for a Post-Doc position (12 months):\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eCapture-based MAC for Wireless Sensor Networks\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe objective of this project is to investigate the capture effect in which one station can correctly receive a frame in spite of a collision. That understanding should then be used to design a medium access method that takes advantage of the capture effect.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e","title":"Capture-based MAC for Wireless Sensor Networks"},{"content":"LIG Laboratory, Drakkar group invites applications for a Post-Doc position (12 months):\nRouting in Unmanaged Wired/Wireless Intranets\nThe objective of this project is to investigate routing protocols in unmanaged wired/wireless Intranets\u0026mdash;such networks may have complex and changing topology without sufficient administration support. We want to apply OLSR in such environments and extend it to take into account prefix aggregation and discovery. The target is to fully take advantage of IPv6 features at the edge of the Internet.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols Network simulation C programming The applicant will be hired by Grenoble INP.\nSalary: 2968 euros gross. (Note: The net amount after the standard pension, health care, and tax withholding amounts is typically 0.8 times the gross salary.)\nApplicants should send a detailed CV and three references to Andrzej Duda\nClosing date for applications: January 15th, 2011\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/routing-in-unmanaged-wiredwireless-intranets/","section":"Join us","summary":"\u003cp\u003eLIG Laboratory, \n      \n    \u003ca href=\"https://drakkar.imag.fr/\"\u003eDrakkar\u003c/a\u003e group invites applications for a Post-Doc position (12 months):\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eRouting in Unmanaged Wired/Wireless Intranets\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe objective of this project is to investigate routing protocols in unmanaged wired/wireless Intranets\u0026mdash;such networks may have complex and changing topology without sufficient administration support. We want to apply OLSR in such environments and extend it to take into account prefix aggregation and discovery. The target is to fully take advantage of IPv6 features at the edge of the Internet.\u003c/p\u003e","title":"Routing in Unmanaged Wired/Wireless Intranets"},{"content":"LIG Laboratory, Drakkar group invites applications for a Research Engineer position (12 months):\nScalability and Distributed Control of Network Controllers\nThe objective of this project is to validate the scalability of the Network Controller by Mancala Networks and develop protocols for distributed operation of a large number of such devices.\nThe applicant will be hired by INPG Entreprise SA, a private subsidiary of Grenoble Institute of Technology and will work in collaboration with Mancala Networks under the supervision of the LIG/Drakkar team.\nApplicants should have experience/knowledge in the following research areas:\nNetwork and security protocols Distributed systems Network simulation Technical skills:\nUnix systems development C/C++ programming Salary: starting from 2500 euros/month gross depending on technical skills. (Note: The net amount after the standard pension, health care, and tax withholding amounts is typically 0.8 times the gross salary.)\nApplicants should send a detailed CV to Andrzej Duda\nClosing date for applications: January 15th, 2011\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/scalability-and-distributed-control-of-network-controllers/","section":"Join us","summary":"\u003cp\u003eLIG Laboratory, \n      \n    \u003ca href=\"https://drakkar.imag.fr/\"\u003eDrakkar\u003c/a\u003e group invites applications for a Research Engineer position (12 months):\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eScalability and Distributed Control of Network Controllers\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe objective of this project is to validate the scalability of the Network Controller by \u003ca href=\"http://www.mancalanetworks.com\" target=\"_blank\" rel=\"noreferrer\"\u003eMancala Networks\u003c/a\u003e and develop protocols for distributed operation of a large number of such devices.\u003c/p\u003e\n\u003cp\u003eThe applicant will be hired by INPG Entreprise SA, a private subsidiary of Grenoble Institute of Technology and will work in collaboration with Mancala Networks under the supervision of the LIG/Drakkar team.\u003c/p\u003e","title":"Scalability and Distributed Control of Network Controllers"},{"content":" Christelle Caillouet leaves the group.\n","date":"31 July 2010","permalink":"https://drakkar.imag.fr/news/christelle-molle-quitte-lequipe/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/collaborations/christelle-caillouet/\"\u003eChristelle Caillouet\u003c/a\u003e leaves the group.\u003c/p\u003e","title":"Christelle Molle leaves the group"},{"content":"Web site of the project.\nThe main problem tackled by the project is unequal access to new technologies and vocational education devoted to new technologies in Europe. The specific problem addressed by the project concerns training curriculum in mobile technology – Symbian OS. At the moment such trainings are accessible only in a few European countries located in the north-west of the continent. The main goal set up by the project is assuring better access to the vocational training in this field. This will be done by transfer of training methodology from training centres existing in Europe, developing training programmes unique for every partner, assuring creation of new training centres in South and Central Europe, securing first qualified group of trainers and training materials. In more general dimension, the project will contribute to the development of knowledge-based society and competitiveness of economy.\nPartners involved in the project are institutions well experienced in vocational education. Co-operation in the project will help them to establish the stable platform to realise the project and good basis for future educational projects. Co-operation of private training companies and universities gives a chance to create the unique potential of modern IT and educational standards to realise common project. This assures creation of new attractive vocational training adapted to the commercial use of the technology.\nThe tangible results of the project are as follows:\nestablishment of 5 new training centres for the innovative modern technology; 5 training curriculum with additional training pocket (textbooks, workbooks, presentations, e-learning platforms) adapted to specific national and institutional needs; professional preparation of the group of 21 trainers ready to train other trainers and programmers. Intangible results can be defined as:\ntransfer of new possibilities to the partner regions, unique experience for partner institutions involved in the project implementation, new method of transfer of training curriculum developed and ready to be disseminated, good practice to be used in similar undertakings. The project will have a diverse impact. Trainers will develop their competences not only in the new type of training courses, but in multinational teamwork and education systems building as well. Project partners will establish modern training and certification centres for the technology in demand. From the programmers point of view the project will create the opportunity to gain new competences in innovative mobile technology.\nResults #The results of Grenoble INP - LIG Laboratory include the French version of the slides (translation into the local language):\nIntroduction à Symbian Environnement Applications Symbian Processus symbian GUI en Symbian Persistance des donnees Client-Serveur Introduction a Qt sur S60 Portage de Qt sur S60 and a tutorial (practical training laboratory) on Symbian Programming:\nIntroduction FirstGUI ServerClient IdCardSharing 1 IdCardSharing 2 QTMobility ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/eu-moteco-2009-2010/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://moteco.kt.agh.edu.pl/\" target=\"_blank\" rel=\"noreferrer\"\u003eWeb site\u003c/a\u003e of the project.\u003c/p\u003e\n\u003cp\u003eThe main problem tackled by the project is unequal access to new technologies and vocational education devoted to new technologies in Europe. The specific problem addressed by the project concerns training curriculum in mobile technology – \u003ca href=\"http://www.symbian.com/\" target=\"_blank\" rel=\"noreferrer\"\u003eSymbian OS\u003c/a\u003e. At the moment such trainings are accessible only in a few European countries located in the north-west of the continent. The main goal set up by the project is assuring better access to the vocational training in this field. This will be done by transfer of training methodology from training centres existing in Europe, developing training programmes unique for every partner, assuring creation of new training centres in South and Central Europe, securing first qualified group of trainers and training materials. In more general dimension, the project will contribute to the development of knowledge-based society and competitiveness of economy.\u003c/p\u003e","title":"EU MOTECO 2009–2010"},{"content":" Fabrice Theoleyre has joined the LSIIT lab at the university of Strasbourg.\n","date":"11 January 2010","permalink":"https://drakkar.imag.fr/news/fabrice-theoleyre-quitte-lequipe/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/fabrice-theoleyre/\"\u003eFabrice Theoleyre\u003c/a\u003e has joined the \u003ca href=\"http://clarinet.u-strasbg.fr/~theoleyre/\" target=\"_blank\" rel=\"noreferrer\"\u003eLSIIT\u003c/a\u003e lab at the university of Strasbourg.\u003c/p\u003e","title":"Fabrice Theoleyre leaves the group"},{"content":" Martin Heusse will defend his \u0026ldquo;HDR\u0026rdquo; on Monday 30 November 2009 at 2pm in amphi H at Ensimag.\n","date":"25 November 2009","permalink":"https://drakkar.imag.fr/news/martin-heusse-soutient-son-hdr/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/martin-heusse/\"\u003eMartin Heusse\u003c/a\u003e will defend his \u0026ldquo;HDR\u0026rdquo; on Monday 30 November 2009 at 2pm in amphi H at Ensimag.\u003c/p\u003e","title":"Martin Heusse will defend his \"HDR\""},{"content":" Maria Isabel Vergara Gallego joins the group to develop research on flexible radio networks in the project Trek.\n","date":"18 November 2009","permalink":"https://drakkar.imag.fr/news/isabel-vergara-rejoint-drakkar-en-tant-que-doctorante/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/maria-isabel-vergara-gallego/\"\u003eMaria Isabel Vergara Gallego\u003c/a\u003e joins the group to develop research on flexible radio networks in the project Trek.\u003c/p\u003e","title":"Isabel Vergara joins Drakkar as a PhD student"},{"content":"PhD thesis: Flexible Radio\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/maria-isabel-vergara-gallego/","section":"Members","summary":"\u003cp\u003ePhD thesis: Flexible Radio\u003c/p\u003e","title":"Maria Isabel Vergara Gallego"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/martin-koutny/","section":"Members","summary":"","title":"Martin Koutny"},{"content":"PhD thesis: Wireless Sensor Networks\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/ana-bildea/","section":"Members","summary":"\u003cp\u003ePhD thesis: Wireless Sensor Networks\u003c/p\u003e","title":"Ana Bildea"},{"content":" Ana Bildea joins the group to develop research in wireless sensor networks in the project ANR ARESA2 2009–2012.\n","date":"6 November 2009","permalink":"https://drakkar.imag.fr/news/ana-bildea-rejoint-drakkar-en-tant-que-doctorante/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/ana-bildea/\"\u003eAna Bildea\u003c/a\u003e joins the group to develop research in wireless sensor networks in the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/anr-aresa2-2009-2012/\"\u003eANR ARESA2 2009–2012\u003c/a\u003e.\u003c/p\u003e","title":"Ana Bildea joins Drakkar as a PhD student"},{"content":"ARESA2 website\nConnecting dynamic wireless sensor networks to the IP world and securing them, at a controlled energy cost.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-aresa2-2009-2012/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://aresa2.minalogic.net/\" target=\"_blank\" rel=\"noreferrer\"\u003eARESA2 website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eConnecting dynamic wireless sensor networks to the IP world and securing them,\nat a controlled energy cost.\u003c/p\u003e","title":"ANR ARESA2 2009–2012"},{"content":"PhD thesis: Wireless Multichannel Multiradio Mesh Networks\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/carina-teixeira-de-oliveira/","section":"Members","summary":"\u003cp\u003ePhD thesis: Wireless Multichannel Multiradio Mesh Networks\u003c/p\u003e","title":"Carina Teixeira de Oliveira"},{"content":" Carina Teixeira de Oliveira joins the group to develop research in wireless multichannel and multiradio mesh networks.\n","date":"6 November 2009","permalink":"https://drakkar.imag.fr/news/carina-teixeira-de-oliveira-rejoint-drakkar-en-tant-que-doctorante/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/carina-teixeira-de-oliveira/\"\u003eCarina Teixeira de Oliveira\u003c/a\u003e joins the group to develop research in wireless multichannel and multiradio mesh networks.\u003c/p\u003e","title":"Carina Teixeira de Oliveira joins Drakkar as a PhD student"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/maciej-korczynski/","section":"Members","summary":"","title":"Maciej Korczynski"},{"content":"PhD thesis: Urban Wireless Sensor Networks\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/bogdan-pavkovic/","section":"Members","summary":"\u003cp\u003ePhD thesis: Urban Wireless Sensor Networks\u003c/p\u003e","title":"Bogdan Pavkovic"},{"content":" Bogdan Pavkovic joins the group to develop research in urban wireless sensor networks for the project SENCITY 2009–2011.\n","date":"26 October 2009","permalink":"https://drakkar.imag.fr/news/bogdan-pavkovic-rejoint-drakkar-en-tant-que-doctorant/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/bogdan-pavkovic/\"\u003eBogdan Pavkovic\u003c/a\u003e joins the group to develop research in urban wireless sensor networks for the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/sencity-2009-2011/\"\u003eSENCITY 2009–2011\u003c/a\u003e.\u003c/p\u003e","title":"Bogdan Pavkovic joins Drakkar as a PhD student"},{"content":" Christelle Caillouet joins the group to develop research in wireless networks for the project EU INDECT 2009–2013.\n","date":"1 October 2009","permalink":"https://drakkar.imag.fr/news/christelle-molle-rejoint-drakkar-en-tant-que-post-doc/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/collaborations/christelle-caillouet/\"\u003eChristelle Caillouet\u003c/a\u003e joins the group to develop research in wireless networks for the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/ue-indect-2009-2013/\"\u003eEU INDECT 2009–2013\u003c/a\u003e.\u003c/p\u003e","title":"Christelle Molle joins Drakkar as a post-doc"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/collaborations/christelle-caillouet/","section":"Members","summary":"","title":"Christelle Caillouet"},{"content":" Maria Eugenia Berezin starts a PhD to develop research in wireless networks for the project ANR ELAN 2009–2011.\n","date":"4 September 2009","permalink":"https://drakkar.imag.fr/news/maria-eugenia-berezin-entame-une-these-a-drakkar/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/maria-eugenia-berezin/\"\u003eMaria Eugenia Berezin\u003c/a\u003e starts a PhD to develop research in wireless networks for the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/anr-elan-2009-2011/\"\u003eANR ELAN 2009–2011\u003c/a\u003e.\u003c/p\u003e","title":"Maria Eugenia Berezin starts a PhD with Drakkar"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 PhD student position (36 months) There are so many radio communication standards to cope with today that hardwired approaches are no longer practical. We propose to study a generic and reconfigurable system for next generation wireless networks based on flexible radio. The TREK software radio platform will be extended to validate the proposed concepts in real-world experiments.\nClosing date for applications: July 31st, 2009\nContacts :\nFranck ROUSSEAU Applicants should send a detailed CV and a publication list by post before the deadline.\nApplicant could take a look on: http://www.adum.fr/as/ed/voirproposition.pl?site=edmstii\u0026matricule_prop=1352\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/wireless-networking-using-reconfigurable-hardware/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 PhD student position (36 months)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThere are so many radio communication standards to cope with today that hardwired approaches are no longer practical. We propose to study a generic and reconfigurable system for next generation wireless networks based on flexible radio. The TREK software radio platform will be extended to validate the proposed concepts in real-world experiments.\u003c/p\u003e\n\u003cp\u003eClosing date for applications: \u003cstrong\u003eJuly 31st, 2009\u003c/strong\u003e\u003c/p\u003e","title":"Wireless networking using reconfigurable hardware"},{"content":"PhD thesis: Localization and Routing Strategies in Wireless Sensor Network: impacts on energy\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/asif-iqbal-baba/","section":"Members","summary":"\u003cp\u003ePhD thesis: Localization and Routing Strategies in Wireless Sensor Network: impacts on energy\u003c/p\u003e","title":"Asif-Iqbal Baba"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 PhD student position (36 months) *** description will come soon ***\nClosing date for applications: July 1st, 2009\nContacts :\nAndrzej DUDA Martin HEUSSE Applicants should send a detailed CV and a publication list by post before the deadline.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/qos-in-extended-lan/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 PhD student position (36 months)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e*** description will come soon ***\u003c/p\u003e\n\u003cp\u003eClosing date for applications: \u003cstrong\u003eJuly 1st, 2009\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eContacts :\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/andrzej-duda/\"\u003eAndrzej DUDA\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/martin-heusse/\"\u003eMartin HEUSSE\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eApplicants should send a detailed CV and a publication list by post before the deadline.\u003c/p\u003e","title":"QoS in extended LAN"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 PhD student position (36 months) *** description will come soon ***\nClosing date for applications: July 1st, 2009\nContacts :\nAndrzej DUDA Applicants should send a detailed CV and a publication list by post before the deadline.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/security-in-networking/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 PhD student position (36 months)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003e*** description will come soon ***\u003c/p\u003e\n\u003cp\u003eClosing date for applications: \u003cstrong\u003eJuly 1st, 2009\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eContacts :\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/andrzej-duda/\"\u003eAndrzej DUDA\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eApplicants should send a detailed CV and a publication list by post before the deadline.\u003c/p\u003e","title":"Security in networking"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 PhD student position (36 months) The French ministry has awarded a grant for work on wireless mesh networks in multichannel, multi-interface environments. The thesis will study routing and the MAC layer, and will investigate cross-layer aspects. The proposed solution will be evaluated experimentally.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols Wireless networks, especially IEEE 802.11 C programming skills distributed algorithms Closing date for applications: July 1st, 2009\nContacts :\nAndrzej DUDA Fabrice THEOLEYRE Applicants should send before the deadline:\na detailed CV list of publications a research statement a two-page overview of their master\u0026rsquo;s thesis at least one recommendation letter from the master\u0026rsquo;s supervisor, and possibly other references Applicants may also want to look at: http://www.adum.fr/as/ed/voirproposition.pl?site=edmstii\u0026matricule_prop=1268\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/reseaux-radio-mailles-multi-interface-multi-canal/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 PhD student position (36 months)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe French ministry has awarded a grant for work on wireless mesh networks in multichannel, multi-interface environments. The thesis will study routing and the MAC layer, and will investigate cross-layer aspects. The proposed solution will be evaluated experimentally.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eNetwork protocols\u003c/li\u003e\n\u003cli\u003eWireless networks, especially IEEE 802.11\u003c/li\u003e\n\u003cli\u003eC programming skills\u003c/li\u003e\n\u003cli\u003edistributed algorithms\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eClosing date for applications: \u003cstrong\u003eJuly 1st, 2009\u003c/strong\u003e\u003c/p\u003e","title":"Wireless mesh multichannel multi-interface networks"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 post-doctorate position (18 months) The successful applicant will work on the SENCITY project, on wireless sensor networks for urban environments. SENCITY addresses the urban aspects of wireless sensor networks: MAC optimization, energy efficient routing protocols, topology control.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols Wireless networks, especially sensor networks, ZigBee, 802.11 C programming skills distributed algorithms Closing date for applications: July 1st, 2009\nContacts :\nAndrzej DUDA Benoît PONSARD Fabrice THEOLEYRE Applicants should send a detailed CV and a publication list by post before the deadline.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/reseaux-de-capteurs-radio-urbains/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 post-doctorate position (18 months)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe successful applicant will work on the \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/sencity-2009-2011/\"\u003eSENCITY\u003c/a\u003e project, on wireless sensor networks for urban environments. SENCITY addresses the urban aspects of wireless sensor networks: MAC optimization, energy efficient routing protocols, topology control.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eNetwork protocols\u003c/li\u003e\n\u003cli\u003eWireless networks, especially sensor networks, ZigBee, 802.11\u003c/li\u003e\n\u003cli\u003eC programming skills\u003c/li\u003e\n\u003cli\u003edistributed algorithms\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eClosing date for applications: \u003cstrong\u003eJuly 1st, 2009\u003c/strong\u003e\u003c/p\u003e","title":"Wireless sensor networks for urban environments"},{"content":" Abdelmalik Bachir has received the best PhD thesis award from Grenoble-INP.\nThe award, given by Grenoble INP, recognizes Abdelmalik Bachir\u0026rsquo;s work on wireless sensor networks.\n","date":"9 June 2009","permalink":"https://drakkar.imag.fr/news/abdelmalik-bachir-recoit-le-prix-de-these-en-informatique-de-grenoble-inp/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/abdelmalik-bachir/\"\u003eAbdelmalik Bachir\u003c/a\u003e has received the best PhD thesis award from Grenoble-INP.\u003c/p\u003e\n\u003cp\u003eThe award, given by Grenoble INP, recognizes Abdelmalik Bachir\u0026rsquo;s work on wireless sensor networks.\u003c/p\u003e","title":"Abdelmalik Bachir awarded best PhD thesis in computer science from Grenoble INP"},{"content":" Asif-Iqbal Baba joins the group to develop research in wireless sensor networks for the project SAMEE 2008–2011\n","date":"4 June 2009","permalink":"https://drakkar.imag.fr/news/asif-iqbal-baba-rejoint-drakkar-en-tant-que-doctorant/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/asif-iqbal-baba/\"\u003eAsif-Iqbal Baba\u003c/a\u003e joins the group to develop research in wireless sensor networks for the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/samee-2008-2011/\"\u003eSAMEE 2008–2011\u003c/a\u003e\u003c/p\u003e","title":"Asif-Iqbal Baba joins Drakkar as a PhD student"},{"content":"The WindSeedS project Wireless Neighborhood Dissemination Seeking Data for Share, led by Franck Rousseau, has received the ARTS award, the Apple Research \u0026amp; Technology Support.\nThis award, given by Apple, recognizes the talent of European researchers across all fields.\nAbout the project\nWireless Neighborhood Dissemination Seeking Data for Share\nThe latest mobile devices — of which the iPhone and iPod Touch are the most accomplished examples — pack several kinds of wireless link, spatial positioning, and the ability to capture and handle rich multimedia content into an extremely compact form. In parallel, research has produced a great many new approaches to wireless network communication. We propose to run experiments that test whether such approaches are feasible and useful in two concrete scenarios, and in time to offer a platform for studying new uses and potential applications built on these advances — for users, application designers and network operators alike.\nThe project\u0026rsquo;s main goal is to develop accessible, consumer-facing applications that validate some of the advanced concepts developed in the Drakkar team over recent years. Our past work has consistently anticipated the capabilities of future devices and their widespread adoption. We are now entering that era of \u0026ldquo;ubiquitous, hyper-connected\u0026rdquo; devices, which lets us run the first real-world experiments around the research we are doing.\nThe resulting platform will be folded into the Marvelig project before long, so that other teams in the laboratory can use it and benefit from the expertise gained. The ultimate aim is to distribute applications to volunteers willing to take part in open experiments during specific events.\n","date":"5 May 2009","permalink":"https://drakkar.imag.fr/news/prix-arts-apple/","section":"News","summary":"\u003cp\u003eThe WindSeedS project \u003cem\u003eWireless Neighborhood Dissemination Seeking Data for\nShare\u003c/em\u003e, led by \n      \n    \u003ca href=\"https://drakkar.imag.fr/members/faculty/franck-rousseau/\"\u003eFranck Rousseau\u003c/a\u003e, has received\nthe ARTS award, the Apple Research \u0026amp; Technology Support.\u003c/p\u003e\n\u003cp\u003eThis award, given by Apple, recognizes the talent of European researchers across\nall fields.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout the project\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003cem\u003eWireless Neighborhood Dissemination Seeking Data for Share\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eThe latest mobile devices — of which the iPhone and iPod Touch are the most\naccomplished examples — pack several kinds of wireless link, spatial positioning,\nand the ability to capture and handle rich multimedia content into an extremely\ncompact form. In parallel, research has produced a great many new approaches to\nwireless network communication. We propose to run experiments that test whether\nsuch approaches are feasible and useful in two concrete scenarios, and in time to\noffer a platform for studying new uses and potential applications built on these\nadvances — for users, application designers and network operators alike.\u003c/p\u003e","title":"Apple ARTS award"},{"content":"Web site of the project.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/ue-indect-2009-2013/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://www.indect-project.eu/\" target=\"_blank\" rel=\"noreferrer\"\u003eWeb site\u003c/a\u003e of the project.\u003c/p\u003e","title":"EU INDECT 2009–2013"},{"content":"This project is funded by the Minalogic (pole de compétitivité) for 2 years. We will study in this project several aspects:\ntopology control: how to dynamic tune the power transmission of each node in order to reduce interference? experiments: what represents a good model for radio transmissions? The current participants are:\nBenoît Ponsard (leader) Fabrice Theoleyre ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/sencity-2009-2011/","section":"Projects","summary":"\u003cp\u003eThis project is funded by the Minalogic (\u003ca href=\"http://www.minalogic.com/\" target=\"_blank\" rel=\"noreferrer\"\u003epole de compétitivité\u003c/a\u003e) for 2 years. We will study in this project several aspects:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003etopology control: how to dynamic tune the power transmission of each node in order to reduce interference?\u003c/li\u003e\n\u003cli\u003eexperiments: what represents a good model for radio transmissions?\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe current participants are:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eBenoît Ponsard (leader)\u003c/li\u003e\n\u003cli\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/fabrice-theoleyre/\"\u003eFabrice Theoleyre\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e","title":"SENCITY 2009–2011"},{"content":"Doug Leith from the Hamilton Institute will visit the group on the 23rd and 24th of February.\n","date":"20 February 2009","permalink":"https://drakkar.imag.fr/news/doug-leith-sera-en-visite-dans-lequipe/","section":"News","summary":"\u003cp\u003e\u003ca href=\"https://www.hamilton.ie/doug/\" target=\"_blank\" rel=\"noreferrer\"\u003eDoug Leith\u003c/a\u003e from the \u003ca href=\"https://www.hamilton.ie\" target=\"_blank\" rel=\"noreferrer\"\u003eHamilton Institute\u003c/a\u003e will visit the group on the 23rd and 24th of February.\u003c/p\u003e","title":"Doug Leith visits the Drakkar group"},{"content":"Project website.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/anr-elan-2009-2011/","section":"Projects","summary":"\u003cp\u003eProject \u003ca href=\"http://elan.eurecom.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003ewebsite\u003c/a\u003e.\u003c/p\u003e","title":"ANR ELAN 2009–2011"},{"content":" Carine Toham will defend her PhD thesis on December 2nd, 2008 at 2pm in room F018 at UFR IMAG.\n","date":"2 December 2008","permalink":"https://drakkar.imag.fr/news/carine-toham-soutiendra-sa-these-le-2-decembre-2008/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/carine-toham/\"\u003eCarine Toham\u003c/a\u003e will defend her PhD thesis on December 2nd, 2008 at 2pm in room F018 at UFR IMAG.\u003c/p\u003e","title":"Carine Toham will defend her PhD thesis on December 2nd, 2008"},{"content":" Yan Grunenberger will defend his PhD thesis on December 2nd, 2008 at 2:30pm.\n","date":"2 December 2008","permalink":"https://drakkar.imag.fr/news/yan-grunenberger-soutiendra-sa-these-le-2-decembre-2008/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/yan-grunenberger/\"\u003eYan Grunenberger\u003c/a\u003e will defend his PhD thesis on December 2nd, 2008 at 2:30pm.\u003c/p\u003e","title":"Yan Grunenberger will defend his PhD thesis on December 2nd, 2008"},{"content":"PhD thesis: Analyse des performances d’un réseau de capteurs exploitant les protocoles ZigBee 802.15.4 – application à la surveillance énergétique en entreprise\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/nazim-abdeddaim/","section":"Members","summary":"\u003cp\u003ePhD thesis: Analyse des performances d’un réseau de capteurs exploitant les protocoles ZigBee 802.15.4 – application à la surveillance énergétique en entreprise\u003c/p\u003e","title":"Nazim Abdeddaïm"},{"content":" Nazim Abdeddaïm joins the group to develop research in wireless sensor networks for the project SAMEE 2008–2011\n","date":"1 December 2008","permalink":"https://drakkar.imag.fr/news/nazim-abdeddaim-rejoint-drakkar-en-tant-que-doctorant/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/nazim-abdeddaim/\"\u003eNazim Abdeddaïm\u003c/a\u003e joins the group to develop research in wireless sensor networks for the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/samee-2008-2011/\"\u003eSAMEE 2008–2011\u003c/a\u003e\u003c/p\u003e","title":"Nazim Abdeddaïm joins Drakkar as a PhD student"},{"content":" Mohammad Nassiri will defend his PhD thesis on November 24th, 2008 at 2pm.\n","date":"24 November 2008","permalink":"https://drakkar.imag.fr/news/mohammad-nassiri-soutiendra-sa-these-le-24-novembre-2008/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/mohammad-nassiri/\"\u003eMohammad Nassiri\u003c/a\u003e will defend his PhD thesis on November 24th, 2008 at 2pm.\u003c/p\u003e","title":"Mohammad Nassiri will defend his PhD thesis on November 24th, 2008"},{"content":"Grenoble INP and LIG Laboratory invite applications for this PhD Student position (36 months):\nThe applicant will work towards a doctorate on extended LANs. Subjects to investigate include improved interconnection at layer 2 (Extended LANs), scheduling techniques for supporting QoS, and seamless integration of wireless links in enterprise Intranets. The thesis will be related to the ELAN project.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols, LANs Wireless networks, especially 802.11, 802.15.4 Pay grade: 1760 euros gross.\nApplicants should send a detailed CV to Andrzej Duda.\nClosing date for applications: October 15th, 2008\nContact : Andrzej Duda\n(Same position listed here)\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/performance-optimizations-in-extended-lans/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for this PhD Student position (36 months):\u003c/p\u003e\n\u003cp\u003eThe applicant will work towards a doctorate on extended LANs. Subjects to investigate include improved interconnection at layer 2 (Extended LANs), scheduling techniques for supporting QoS, and seamless integration of wireless links in enterprise Intranets. The thesis will be related to the ELAN project.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e\n\u003cp\u003eNetwork protocols, LANs\nWireless networks, especially 802.11, 802.15.4\nPay grade: 1760 euros gross.\u003c/p\u003e","title":"Performance optimizations in extended LANs"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 Post-Doc/Researcher (18 months, possible extension) The successful applicant will work on the SAMEE project, on wireless sensor networks. SAMEE addresses several aspects of ZigBee wireless sensor networks: MAC optimization, energy-efficient routing protocols, self-organization, content routing and localization.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols Wireless networks, especially sensor networks, ZigBee, 802.11 Maximum Pay Grade: 2800 euros gross depending on qualifications.\nApplicants should send a detailed CV and a publication list to Andrzej Duda.\nClosing date for applications: October 15th, 2008\nContact : Andrzej Duda\n(Same position listed here)\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/reseaux-de-capteurs/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cp\u003e1 Post-Doc/Researcher (18 months, possible extension)\nThe successful applicant will work on the SAMEE project, on wireless sensor networks. SAMEE addresses several aspects of ZigBee wireless sensor networks: MAC optimization, energy-efficient routing protocols, self-organization, content routing and localization.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e\n\u003cp\u003eNetwork protocols\nWireless networks, especially sensor networks, ZigBee, 802.11\nMaximum Pay Grade: 2800 euros gross depending on qualifications.\u003c/p\u003e","title":"Wireless Sensor Networks"},{"content":"This project, funded by the Minalogic competitiveness cluster, focused on innovations in energy efficiency: monitoring the electricity consumption of an industrial or commercial installation without any external power supply. Sensors and displays harvest their energy unobtrusively and communicate over very low-power radio. SAMEE was a multidisciplinary research project bringing together eight partners, mostly from the Grenoble area. Within it, the Drakkar team at LIG was responsible for the networking aspects.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/samee-2008-2011/","section":"Projects","summary":"\u003cp\u003eThis project, funded by the Minalogic competitiveness cluster, focused on\ninnovations in energy efficiency: monitoring the electricity consumption of an\nindustrial or commercial installation without any external power supply. Sensors\nand displays harvest their energy unobtrusively and communicate over very\nlow-power radio. SAMEE was a multidisciplinary research project bringing together\neight partners, mostly from the Grenoble area. Within it, the Drakkar team at LIG\nwas responsible for the networking aspects.\u003c/p\u003e","title":"SAMEE 2008–2011"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/maria-eugenia-berezin/","section":"Members","summary":"","title":"Maria Eugenia Berezin"},{"content":" Maria Eugenia Berezin joins the group to implement protocols proposed in the project EU IST WIP 2005–2009.\n","date":"1 September 2008","permalink":"https://drakkar.imag.fr/news/maria-eugenia-berezin-rejoint-drakkar-en-tant-quingenieur-de-recherche/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/maria-eugenia-berezin/\"\u003eMaria Eugenia Berezin\u003c/a\u003e joins the group to implement protocols proposed in the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/ue-ist-wip-2006-2009/\"\u003eEU IST WIP 2005–2009\u003c/a\u003e.\u003c/p\u003e","title":"Maria Eugenia Berezin joins Drakkar as a research engineer"},{"content":"I did my PhD at the LIRMM, Université Montpellier II.\nI was a post-doc in the Drakkar team from 2008 to 2009, working on routing, broadcasting and localisation problems in sensor networks.\nI am now an associate professor at the Université de Bourgogne.\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/benoit-darties/","section":"Members","summary":"\u003cp\u003eI did my PhD at the \u003ca href=\"http://www.lirmm.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eLIRMM\u003c/a\u003e, Université Montpellier II.\u003c/p\u003e\n\u003cp\u003eI was a post-doc in the Drakkar team from 2008 to 2009, working on routing,\nbroadcasting and localisation problems in sensor networks.\u003c/p\u003e\n\u003cp\u003eI am now an associate professor at the Université de Bourgogne.\u003c/p\u003e","title":"Benoit Darties"},{"content":" Benoit Darties joins the group for a post-doc and to work on the project RNRT ARESA 2006–2009.\n","date":"1 July 2008","permalink":"https://drakkar.imag.fr/news/benoit-darties-rejoint-drakkar-en-tant-que-post-doc/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/benoit-darties/\"\u003eBenoit Darties\u003c/a\u003e joins the group for a post-doc and to work on the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/rnrt-aresa-2006-2009/\"\u003eRNRT ARESA 2006–2009\u003c/a\u003e.\u003c/p\u003e","title":"Benoit Darties joins Drakkar as a post-doc"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/noha-ibrahim/","section":"Members","summary":"","title":"Noha Ibrahim"},{"content":" Noha Ibrahim joins the group for a post-doc and to work on the project EU IST WIP 2005–2009.\n","date":"1 July 2008","permalink":"https://drakkar.imag.fr/news/noha-ibrahim-rejoint-drakkar-en-tant-que-post-doc/","section":"News","summary":"\u003cp\u003e\n      \n    \u003ca href=\"https://drakkar.imag.fr/members/alumni/noha-ibrahim/\"\u003eNoha Ibrahim\u003c/a\u003e joins the group for a post-doc and to work on the project \n      \n    \u003ca href=\"https://drakkar.imag.fr/projects/past/ue-ist-wip-2006-2009/\"\u003eEU IST WIP 2005–2009\u003c/a\u003e.\u003c/p\u003e","title":"Noha Ibrahim joins Drakkar as a post-doc"},{"content":"Interns from AGH Krakow will present their work in D207:\nAnalysis tools for the performance of a mobility testbed; P2P for e-learning. ","date":"19 June 2008","permalink":"https://drakkar.imag.fr/news/presentations-des-stagiaires-agh-cracovie/","section":"News","summary":"\u003cp\u003eInterns from AGH Krakow will present their work in D207:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eAnalysis tools for the performance of a mobility testbed;\u003c/li\u003e\n\u003cli\u003eP2P for e-learning.\u003c/li\u003e\n\u003c/ul\u003e","title":"Interns' presentations (AGH Krakow)"},{"content":"WIP website\nWe propose to study how to build an all-wireless Internet that could grow and gradually replace the existing Internet. In our vision, the access points of unlicensed cellular networks cooperate to create a wireless communication infrastructure. Such a wireless network must be self-organizing to maximize the network capacity and capabilities. Ultimately, the all-wireless interconnection of cooperating access points will only require limited connectivity to the wired infrastructure. We call this all-wireless infrastructure the Radio Internet. The goal of the project is to study how to make the Radio Internet become a reality with an Internet-like growth towards a scalable and robust communication infrastructure.\nThe objective of the project is to design, implement, and experimentally validate an all-wireless interconnection architecture based on advanced wireless transmission techniques (i.e., new MAC, new wireless standards, multiple radio and multiple antennas APs), mesh networking, cross-layer optimization, and mechanisms for seamless mobility. We will develop a suitable measurement methodology and set up experimental prototypes to validate our concepts. Testbeds will be used or deployed for proof-of-concept and validation of the proposed architecture and communication mechanisms.\nWe believe that to achieve the vision of the Radio Internet, we need to adopt a disruptive approach with respect to the current Internet: rethink the overall architecture with wireless networks as the central technology and propose a new interconnection architecture founded on the principle of all-wireless networks with some isolated wired long-haul links. By defining new topology and routing schemes, designing simple interconnection rules, elaborating new performance objectives, designing self-configuring, and self healing mechanisms, a large number of wireless access networks can be dynamically interconnected to provide wide coverage with a large capacity. In addition, such a network infrastructure will enable new mobility perspectives and new business models.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/ue-ist-wip-2006-2009/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://www.ist-wip.org/\" target=\"_blank\" rel=\"noreferrer\"\u003eWIP website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eWe propose to study how to build an all-wireless Internet that could grow and gradually replace the existing Internet. In our vision, the access points of unlicensed cellular networks cooperate to create a wireless communication infrastructure. Such a wireless network must be self-organizing to maximize the network capacity and capabilities. Ultimately, the all-wireless interconnection of cooperating access points will only require limited connectivity to the wired infrastructure. We call this all-wireless infrastructure the Radio Internet. The goal of the project is to study how to make the Radio Internet become a reality with an Internet-like growth towards a scalable and robust communication infrastructure.\u003c/p\u003e","title":"EU IST WIP 2005–2009"},{"content":"Fabrice Valois from INSA of Lyon will present a seminar (30/04/2008 - 10h). The presentation will be given in the room D102 (building D of Ensimag).\n","date":"30 April 2008","permalink":"https://drakkar.imag.fr/news/fabrice-valois-fera-un-seminaire-sur-lauto-organisation/","section":"News","summary":"\u003cp\u003e\u003ca href=\"http://fvalois.insa-lyon.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eFabrice Valois\u003c/a\u003e from INSA of Lyon will present a seminar (30/04/2008 - 10h).\nThe presentation will be given in the room D102 (building D of Ensimag).\u003c/p\u003e","title":"Fabrice Valois will give a talk on self-organization in MANET"},{"content":"Damien Magoni from Louis Pasteur University (Strasbourg) will present a seminar (04/09/2008 - 10am). The presentation will be given in the room D102 (building D of Ensimag).\n","date":"9 April 2008","permalink":"https://drakkar.imag.fr/news/damien-magoni-fera-un-seminaire-sur-linternet/","section":"News","summary":"\u003cp\u003e\u003ca href=\"http://dpt-info.u-strasbg.fr/~magoni/\" target=\"_blank\" rel=\"noreferrer\"\u003eDamien Magoni\u003c/a\u003e from Louis Pasteur University (Strasbourg) will present a seminar (04/09/2008 - 10am). The presentation will be given in the room D102 (building D of Ensimag).\u003c/p\u003e","title":"Damien Magoni will give a talk on the Internet"},{"content":"CFIP 2008 is organized by the Drakkar group.\n","date":"25 March 2008","permalink":"https://drakkar.imag.fr/news/cfip-2008-aux-arcs/","section":"News","summary":"\u003cp\u003eCFIP 2008 is organized by the Drakkar group.\u003c/p\u003e","title":"CFIP 2008 at Les Arcs"},{"content":"Different factors have been contributing to the well known (and ever growing) success of the Internet. It is quite easy to write own “pages“ as many easy-to-use editing graphical tools exist todays. Even more easy is the deployment of these pages on the global “World Wide Web“ as many alternatives are offered to you, ranging from uploading them to an ISP to the home made hosting using open source tools as Apache. The WWW at the same time plays more and more the role of a front end to business specific processes – a.k.a. E-services – as it is quite easy to connect to an ISP and go to a dedicated web page giving access to train reservation, energy consumption, etc\u0026hellip; Such services are also invokable by other business processes using the “web-service“ paradigm. We want this same success story to happen again with mobile services as the ultimate mean to ease inter-person communication, to facilitate the everyday life and to create, share and access services, content with the whole community. Indeed, one way to boost the service market in Europe consists of: providing Open Source based application supporting infrastructure that can be used by all on the PC at home, on the mobile phone on the move or at the big actor side (Telco, ISP, manufacturers); pushing the creation power to any one’s hand providing then any one with either new business opportunity or the capability to share services with the community and to extend his/her communication sphere; decreasing time to market for professional actors (service providers, industries) by providing easy-to-use creation tools and development environment and fast service deployment.\nObjectives #These are the goal of the S4ALL project that can be simply summarised as follows:\nproviding Open Source based application supporting infrastructure that can be used by all on the PC at home, on the mobile phone on the move or at the big actor side (Telco, ISP, manufacturers); pushing the creation power to any one’s hand providing then any one with either new business opportunity or the capability to share services with the community and to extend his/her communication sphere; decreasing time to market for professional actors (service providers, industries) by providing easy-to-use creation tools and development environment and fast service deployment. Partners # Alcatel CIT Research and Innovation (leader) Bull Capricode Fraunhofer Fokus Helsinki Institute for Information Technology INRIA INT mCentric Nokia Schneider Electric Thales Univ. Joseph Fourier IMAG Univ. Politecnica de Madrid Vodaphone Xquark ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/s4all-2004-2007/","section":"Projects","summary":"\u003cp\u003eDifferent factors have been contributing to the well known (and ever growing) success of the Internet. It is quite easy to write own “pages“ as many easy-to-use editing graphical tools exist todays. Even more easy is the deployment of these pages on the global “World Wide Web“ as many alternatives are offered to you, ranging from uploading them to an ISP to the home made hosting using open source tools as Apache. The WWW at the same time plays more and more the role of a front end to business specific processes – a.k.a. E-services – as it is quite easy to connect to an ISP and go to a dedicated web page giving access to train reservation, energy consumption, etc\u0026hellip; Such services are also invokable by other business processes using the “web-service“ paradigm. We want this same success story to happen again with mobile services as the ultimate mean to ease inter-person communication, to facilitate the everyday life and to create, share and access services, content with the whole community. Indeed, one way to boost the service market in Europe consists of: providing Open Source based application supporting infrastructure that can be used by all on the PC at home, on the mobile phone on the move or at the big actor side (Telco, ISP, manufacturers); pushing the creation power to any one’s hand providing then any one with either new business opportunity or the capability to share services with the community and to extend his/her communication sphere; decreasing time to market for professional actors (service providers, industries) by providing easy-to-use creation tools and development environment and fast service deployment.\u003c/p\u003e","title":"S4ALL 2004–2007"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 Research Engineer (18 months, possible extension) The applicant will work in the WIP European project: An All-Wireless Mobile Network Architecture. The objective of the WIP project is to design, implement, and experimentally validate an all-wireless interconnection architecture based on advanced wireless transmission techniques, mesh networking, cross-layer optimization, and mechanisms for seamless mobility.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols; Wireless networks, especially 802.11; Mobility management. Maximum Pay Grade: 1500 euros gross depending on qualifications.\nApplicants should send a detailed CV and a publication list to Andrzej Duda.\nClosing date for applications: December 15th, 2007.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/wireless-mesh-networks/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Research Engineer (18 months, possible extension)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe applicant will work in the WIP European project: An All-Wireless Mobile Network Architecture. The objective of the WIP project is to design, implement, and experimentally validate an all-wireless interconnection architecture based on advanced wireless transmission techniques, mesh networking, cross-layer optimization, and mechanisms for seamless mobility.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e","title":"Wireless Mesh Networks"},{"content":"Grenoble INP and LIG Laboratory invite applications for the following position:\n1 Post-Doc/Researcher (18 months, possible extension) The applicants will work in the ARESA project on Sensor Networks. ARESA addresses several aspects of wireless sensor networks: energy-optimized MAC and routing protocols, self-organization, content routing and localization.\nApplicants should have experience/knowledge in the following research areas:\nNetwork protocols; Wireless networks, especially sensor networks, ZigBee, 802.11. Maximum Pay Grade: 2800 euros gross depending on qualifications.\nApplicants should send a detailed CV and a publication list to Andrzej Duda.\nClosing date for applications: January 15th, 2008.\n","date":null,"permalink":"https://drakkar.imag.fr/join/open-positions/wireless-sensor-networks/","section":"Join us","summary":"\u003cp\u003eGrenoble INP and LIG Laboratory invite applications for the following position:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Post-Doc/Researcher (18 months, possible extension)\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eThe applicants will work in the ARESA project on Sensor Networks. ARESA addresses several aspects of wireless sensor networks: energy-optimized MAC and routing protocols, self-organization, content routing and localization.\u003c/p\u003e\n\u003cp\u003eApplicants should have experience/knowledge in the following research areas:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eNetwork protocols;\u003c/li\u003e\n\u003cli\u003eWireless networks, especially sensor networks, ZigBee, 802.11.\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eMaximum Pay Grade: 2800 euros gross depending on qualifications.\u003c/p\u003e","title":"Wireless Sensor Networks"},{"content":"Consultant Kimeggi\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/benoit-ponsard/","section":"Members","summary":"\u003cp\u003eConsultant \u003ca href=\"https://www.kimeggi.com\" target=\"_blank\" rel=\"noreferrer\"\u003eKimeggi\u003c/a\u003e\u003c/p\u003e","title":"Benoît Ponsard"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/carine-toham/","section":"Members","summary":"","title":"Carine Toham"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/sadaf-tanvir/","section":"Members","summary":"","title":"Sadaf Tanvir"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/guy-mazare/","section":"Members","summary":"","title":"Guy Mazaré"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/fabrice-theoleyre/","section":"Members","summary":"","title":"Fabrice Theoleyre"},{"content":"CARMA website\nAction de Recherche Coopérative (ARC) INRIA: CApacité des Réseaux MAillés (CARMA)\nMesh networks constitute a key technological and economical challenge, and a first step toward ambient network, required to develop ubiquitous computing. Mesh networks use the entire wireless structure of ad hoc networks, aim at covering a whole area, like sensor networks, and entirely maintained by a telco who wants to offer a quality of service to its users.\nThjs ARC aims at studying the capacity of mesh networks. We want to combine different theoretical approaches (deterministic bounds, stochastic algorithms, graph theory, etc.) to develop new and efficient tools in order to model and evaluate the capacity of this kind of networks. Then, we want to optimize this capacity to improve network performance. According to us, a cross-layer approach constitutes the only way to solve this problem. We particularly want to optimize the MAC and routing layers. Finally, we want also to validate the behavior of our algorithms and protocols in real conditions: in this way, we aim at deploying a testbed to evaluate the in-situ performance of our proposals.\nThis ARC associated:\nARES (INSA Lyon/INRIA Rhône Alpes) Drakkar (IMAG) Mascotte (I3S/INRIA Sophia Antipolis) POPS (LIFL/INRIA Futurs) ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/arc-carma-2007-2008/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://golgoth.inria.fr/wiki/Contrats/ARCINRIACARMA\" target=\"_blank\" rel=\"noreferrer\"\u003eCARMA website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eAction de Recherche Coopérative (\u003ca href=\"http://www.inria.fr/recherche/arc\" target=\"_blank\" rel=\"noreferrer\"\u003eARC\u003c/a\u003e) INRIA: CApacité des Réseaux MAillés (\u003ca href=\"http://golgoth.inria.fr/wiki/Contrats/ARCINRIACARMA\" target=\"_blank\" rel=\"noreferrer\"\u003eCARMA\u003c/a\u003e)\u003c/p\u003e\n\u003cp\u003eMesh networks constitute a key technological and economical challenge, and a first step toward ambient network, required to develop ubiquitous computing. Mesh networks use the entire wireless structure of ad hoc networks, aim at covering a whole area, like sensor networks, and entirely maintained by a telco who wants to offer a quality of service to its users.\u003c/p\u003e","title":"ARC CARMA 2007–2008"},{"content":"Our friend and colleague Jacques passed away on November 18th, 2006.\n","date":"23 November 2006","permalink":"https://drakkar.imag.fr/news/in-memoriam-jacques-chassin-de-kergommeaux/","section":"News","summary":"\u003cp\u003eOur friend and colleague Jacques passed away on November 18th, 2006.\u003c/p\u003e","title":"In Memoriam - Jacques Chassin de Kergommeaux"},{"content":"PhD thesis: Architectures réseaux pour des environnements entièrement sans fil.\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/eryk-schiller/","section":"Members","summary":"\u003cp\u003ePhD thesis: Architectures réseaux pour des environnements entièrement sans fil.\u003c/p\u003e","title":"Eryk Schiller"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/olivier-alphand/","section":"Members","summary":"","title":"Olivier Alphand"},{"content":"ARESA website\nThe RNRT ARESA project is funded by the french agency of research (ANR - Agence Nationale de la Recherche). Started in June 2006, it will finish in May 2009. This project is managed by France Telecom R\u0026amp;D.\nARESA is focused on large scale wireless sensor networks distributed in a monitoring area. Because the sensor nodes are autonomous, they should preserve their energy during processing, communication, etc. Finally, the energy is the key problem and this is considered in the different working packages of the project.\nSensor networks should consider the energy consumption in all the topics possible: hardware, operating systems, networking, applications, etc. In this project and based on a specific scenario, we address the network protocols design, the performance evaluation, the protocols validation, etc.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/rnrt-aresa-2006-2009/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://aresa-project.insa-lyon.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eARESA website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eThe RNRT ARESA project is funded by the french agency of research (ANR - Agence Nationale de la Recherche). Started in June 2006, it will finish in May 2009. This project is managed by France Telecom R\u0026amp;D.\u003c/p\u003e\n\u003cp\u003eARESA is focused on large scale wireless sensor networks distributed in a monitoring area. Because the sensor nodes are autonomous, they should preserve their energy during processing, communication, etc. Finally, the energy is the key problem and this is considered in the different working packages of the project.\u003c/p\u003e","title":"RNRT ARESA 2006–2009"},{"content":"AIRNET website\nThe aim of this project was to study how to design and build an interconnection infrastructure resting entirely on wireless local networks operating in a public frequency band. The motivation came from an observation: 802.11 (Wi-Fi) networks were being deployed steadily in densely populated areas, offering access to the global Internet through access points. That deployment was spontaneous, and for the time being there was neither coordination nor collaboration between covered areas — access points belonging to different operators, for instance, did not talk to each other. Imagine instead an interconnection infrastructure in which a new access point dynamically joins the set of existing ones and takes part in multi-hop packet relaying to extend coverage. The building blocks of such an architecture can be Wi-Fi access points in the traditional sense, but also mobile hosts willing to play an active part in communication, as in ad hoc networks. Much as Ethernet contributed to the spontaneous growth of the early Internet, we believed that dynamically interconnecting wireless access points could change the communication paradigm profoundly: the spontaneous wireless infrastructure becomes the core of the interconnection network and offers users an ordinary mobile communication service.\nProject website.\nThe project faced several challenges. The main one lies in the characteristics of the radio medium, which behaves very differently from the wired links the existing Internet was built on. Even though wireless networks perform reasonably well compared with mobile telecommunication networks (GPRS, EDGE, UMTS), that performance degrades quickly in a multi-hop infrastructure running standard Internet protocols (TCP/IP). For these reasons we argued that an all-wireless interconnection has to rest on different principles from today\u0026rsquo;s Internet, whose protocol architecture was not designed to account for wireless characteristics or host mobility:\nThe wireless medium imposes new constraints on the communication architecture: signal attenuation, multipath propagation and time distortion cause large variations in throughput, error rate and delay. Spatial position relative to an access point also raises hidden and exposed host problems. The Internet was not designed to handle these constraints efficiently. The routing protocols, naming and administration principles of today\u0026rsquo;s Internet assume a two-level hierarchical core deployed and administered by highly qualified staff. To design a spontaneous wireless interconnection in which potentially every user can take part, a radically different approach is needed, founded on self-organization and self-management, allowing incremental growth without loss of overall capacity. The addressing scheme and routing structure of the wired Internet are rigid: they were designed for a fixed infrastructure connecting stationary hosts at a single point of attachment. The solutions proposed for mobility (Mobile IP, in both IPv4 and IPv6, and refinements such as Hierarchical Mobile IP) are stopgaps that add functionality without really solving the problem. A general solution for mobile hosts calls for completely different addressing, naming and routing structures. TCP, the most widely used protocol on today\u0026rsquo;s Internet, does not perform satisfactorily in a wireless environment. A new interconnection architecture has to take that into account. Given the variety of wireless technologies, and to allow migration paths from existing radio layers, a unifying routing layer is needed. Dynamic multi-hop ad hoc routing protocols are one candidate technology for such an infrastructure, though extensions are required within that unifying framework, particularly for scalability and quality of service. In our vision, public wireless access points and mobile hosts cooperate to maintain a wireless communication infrastructure with greater transmission capacity and flexible support for host mobility. The project set out to study how to reach that vision incrementally, as the wired Internet did in its early days, with a minimal set of rules and protocols.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/rnrt-airnet-2006-2009/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"http://www.rnrt-airnet.org/\" target=\"_blank\" rel=\"noreferrer\"\u003eAIRNET website\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eThe aim of this project was to study how to design and build an interconnection\ninfrastructure resting entirely on wireless local networks operating in a public\nfrequency band. The motivation came from an observation: 802.11 (Wi-Fi) networks\nwere being deployed steadily in densely populated areas, offering access to the\nglobal Internet through access points. That deployment was spontaneous, and for\nthe time being there was neither coordination nor collaboration between covered\nareas — access points belonging to different operators, for instance, did not\ntalk to each other. Imagine instead an interconnection infrastructure in which a\nnew access point dynamically joins the set of existing ones and takes part in\nmulti-hop packet relaying to extend coverage. The building blocks of such an\narchitecture can be Wi-Fi access points in the traditional sense, but also mobile\nhosts willing to play an active part in communication, as in ad hoc networks.\nMuch as Ethernet contributed to the spontaneous growth of the early Internet, we\nbelieved that dynamically interconnecting wireless access points could change the\ncommunication paradigm profoundly: the spontaneous wireless infrastructure\nbecomes the core of the interconnection network and offers users an ordinary\nmobile communication service.\u003c/p\u003e","title":"RNRT AIRNET 2006–2009"},{"content":"SAFARI website.\nSAFARI set out to design, combine and build the protocol and software infrastructure needed for transparent access, automatic configuration, integration and adaptation of services over an ad hoc IPv6 network that also includes wired access. Its contribution was the design of novel protocol and software solutions, built on established standards (IPv6, multicast, application proxies, programmable networks, and others), able to cope with change both in the network infrastructure and in the availability and continuity of services.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/safari-2003-2006/","section":"Projects","summary":"\u003cp\u003e\u003ca href=\"https://safari-rnrt.rd.francetelecom.com/\" target=\"_blank\" rel=\"noreferrer\"\u003eSAFARI website\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eSAFARI set out to design, combine and build the protocol and software\ninfrastructure needed for transparent access, automatic configuration,\nintegration and adaptation of services over an ad hoc IPv6 network that also\nincludes wired access. Its contribution was the design of novel protocol and\nsoftware solutions, built on established standards (IPv6, multicast, application\nproxies, programmable networks, and others), able to cope with change both in the\nnetwork infrastructure and in the availability and continuity of services.\u003c/p\u003e","title":"Safari 2003–2006"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/catalin-drula/","section":"Members","summary":"","title":"Catalin Drula"},{"content":"DHCPv6 is a protocol for stateful configuration of IPv6 devices that passes network addresses and other configuration information to IPv6 nodes. In this project we are implementing pure Java DHCPv6 server and client.\nWe have designed and implemented DHCPv6 following multiple objectives:\nsuitability of Java: our project set out to test Java as a platform for building pieces of the core networking infrastructure.\nmodularity and seamless extensibility: DHCPv6 is seen as a generic framework for configuration in which protocol options allows extending functionality. They can be developed independently of the core implementation, packaged as jar files, and made instantly fully operational in a running client or a server.\neasy configuration: the behavior of a server can be easily configured via various configuration front-ends: command line, graphical, or Web based (no error prone modification of configuration files). Each option embeds its configuration module.\npluggable storage back-end: configuration information and operational policies are stored and accessed through a generic permanent storage interface; various back-ends can be used as actual storage: a DBMS or flat files.\nmultithreaded and fully dynamic: multiple threads handle requests, replies, and configuration tasks; they can be managed while the server is online.\nThese design requirements have been all met: we provide both a server and a client relying on the same modular and object oriented code base. The server can be easily and dynamically managed and configured, for example new options can be loaded, and configuration changed while running. The storage back-end interfaces with an open source DBMS through jdbc.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/jdhcpv6-2005/","section":"Projects","summary":"\u003cp\u003eDHCPv6 is a protocol for stateful configuration of IPv6 devices that passes network addresses and other configuration information to IPv6 nodes. In this project we are implementing pure Java DHCPv6\nserver and client.\u003c/p\u003e\n\u003cp\u003eWe have designed and implemented DHCPv6 following multiple objectives:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003esuitability of Java\u003c/em\u003e: our project set out to test Java as a platform for building pieces of the core networking infrastructure.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003emodularity and seamless extensibility\u003c/em\u003e: DHCPv6 is seen as a generic framework for configuration in which protocol options allows extending functionality. They can be developed independently of the core implementation, packaged as jar files, and made instantly fully operational in a running client or a server.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003eeasy configuration\u003c/em\u003e: the behavior of a server can be easily configured via various configuration front-ends: command line, graphical, or Web based (no error prone modification of configuration files). Each option embeds its configuration module.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003epluggable storage back-end\u003c/em\u003e: configuration information and operational policies are stored and accessed through a generic permanent storage interface; various back-ends can be used as actual storage: a DBMS or flat files.\u003c/p\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cem\u003emultithreaded and fully dynamic\u003c/em\u003e: multiple threads handle requests, replies, and configuration tasks; they can be managed while the server is online.\u003c/p\u003e\n\u003c/li\u003e\n\u003c/ul\u003e","title":"jDHCPv6 2005"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/elena-lopez/","section":"Members","summary":"","title":"Elena López"},{"content":"PhD student at INRIA / LIP\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/romaric-guillier/","section":"Members","summary":"\u003cp\u003ePhD student at INRIA / LIP\u003c/p\u003e","title":"Romaric Guillier"},{"content":"Idle Sense improves the performance of IEEE 802.11\n[SIGCOMM'05] Martin Heusse, Franck Rousseau, Romaric Guillier, Andrzej Duda. Idle Sense: An Optimal Access Method for High Throughput and Fairness in Rate Diverse Wireless LANs. In Proceedings of SIGCOMM'05, Philadelphia, USA, August 22-26, 2005. [IEEE Wireless] IEEE standards for wireless networks ","date":"12 October 2005","permalink":"https://drakkar.imag.fr/news/sigcomm05-idle-sense-une-methode-dacces-plus-efficace-pour-les-reseaux-wi-fi/","section":"News","summary":"\u003cp\u003eIdle Sense improves the performance of IEEE 802.11\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003e[SIGCOMM'05] Martin Heusse, Franck Rousseau, Romaric Guillier, Andrzej Duda. \u003cem\u003eIdle Sense: An Optimal Access Method for High Throughput and Fairness in Rate Diverse Wireless LANs\u003c/em\u003e. In Proceedings of SIGCOMM'05, Philadelphia, USA, August 22-26, 2005.\u003c/li\u003e\n\u003cli\u003e[IEEE Wireless] \u003ca href=\"http://standards.ieee.org/wireless/\" target=\"_blank\" rel=\"noreferrer\"\u003eIEEE standards for wireless networks\u003c/a\u003e\u003c/li\u003e\n\u003c/ul\u003e","title":"SIGCOMM’05 - Idle Sense: A better access method for Wi-Fi networks"},{"content":"EPFL\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/marc-poulhies/","section":"Members","summary":"\u003cp\u003eEPFL\u003c/p\u003e","title":"Marc Poulhiès"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/mohammad-nassiri/","section":"Members","summary":"","title":"Mohammad Nassiri"},{"content":"An interconnection architecture for spontaneous networks based on label switching #Communication between devices of every kind keeps becoming more common, giving equipment that used to stand alone new capabilities, at home as much as at work. Many technologies — wireless ones in particular — have distinct characteristics suited to their own application domains. The resulting network is therefore heterogeneous, and it changes often as equipment is added and removed, largely because devices move along with their users.\nSuch a network is typically spontaneous: devices join and leave over time with no predictability. Internet access can improve how they work — clocks synchronise themselves against a server, a television can show schedules and reviews, an oven can display a recipe. This spontaneous network of devices sits at the edge of the Internet. The usual interconnection architecture, the Internet\u0026rsquo;s own, is a poor fit for it, because it does not account for what makes spontaneous edge networks different. In two studies, published at the Workshop on Future Directions in Network Architecture 2004 and at the MobiQuitous 2004 conference, we present an interconnection architecture suited to spontaneous edge networks.\nAn interconnection architecture defines how different devices communicate over a shared network. On the Internet, that architecture rests on IP: data is split into packets, each forwarded independently from source to destination. Two consecutive packets may well take different paths and arrive out of order. The Internet\u0026rsquo;s success has proved the architecture effective.\nSpontaneous edge networks are a different case, and they call for another approach. First, their spontaneous nature leads us to treat them as ad hoc networks, working without infrastructure such as access points or central servers. To cover areas of any size while still allowing two distant stations to communicate, ad hoc networks are multi-hop. Every device in a building can then communicate without any dedicated infrastructure being installed.\nSecond, the spontaneity of these networks makes every path between two devices temporary. One has to account for, say, a personal assistant carried by someone walking. When a path is about to disappear, that has to be detected quickly and another path used. Having backup paths also limits the effect on user-visible traffic of topology changes, which can happen abruptly.\nFinally, the path packets take should be determined per type of communication between source and destination: video-conferencing and weather statistics do not share the same constraints, particularly in latency between sending and receiving. Classifying traffic at the level of the interconnection architecture makes it possible to give each class a priority, or a minimum guaranteed throughput.\nThese constraints led us to design Lilith, an interconnection architecture for spontaneous edge networks. Lilith is based on MPLS, a layer 2.5 sitting between the link and network layers, and it is MPLS rather than IP that forwards the data. Using MPLS answers the constraints above elegantly, without changing the operating system or the applications running on it. A prototype was developed for Linux and let us compare Lilith\u0026rsquo;s performance against IP forwarding. The degradation is slight — around 0.3% in throughput — and has to be weighed against what the architecture provides.\n[MobiQuitous 2004] Vincent Untz, Martin Heusse, Franck Rousseau and Andrzej Duda. Lilith: an Interconnection Architecture Based on Label Switching for Spontaneous Edge Networks. In Proceedings of MobiQuitous 2004, Boston, USA, 22–26 August 2004. [FDNA 2004] Vincent Untz, Martin Heusse, Franck Rousseau and Andrzej Duda. On Demand Label Switching for Spontaneous Edge Networks. In Proceedings of SIGCOMM Workshop 2004, Portland, USA, 30 August – 3 September 2004. ","date":"15 January 2005","permalink":"https://drakkar.imag.fr/news/lilith-definit-une-nouvelle-architecture-de-connexion/","section":"News","summary":"\u003ch3 id=\"an-interconnection-architecture-for-spontaneous-networks-based-on-label-switching\" class=\"relative group\"\u003eAn interconnection architecture for spontaneous networks based on label switching \u003cspan class=\"absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100\"\u003e\u003ca class=\"group-hover:text-primary-300 dark:group-hover:text-neutral-700\" style=\"text-decoration-line: none !important;\" href=\"#an-interconnection-architecture-for-spontaneous-networks-based-on-label-switching\" aria-label=\"Anchor\"\u003e#\u003c/a\u003e\u003c/span\u003e\u003c/h3\u003e\u003cp\u003eCommunication between devices of every kind keeps becoming more common, giving\nequipment that used to stand alone new capabilities, at home as much as at work.\nMany technologies — wireless ones in particular — have distinct characteristics\nsuited to their own application domains. The resulting network is therefore\nheterogeneous, and it changes often as equipment is added and removed, largely\nbecause devices move along with their users.\u003c/p\u003e","title":"Lilith defines a new interconnection architecture"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/yan-grunenberger/","section":"Members","summary":"","title":"Yan Grunenberger"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/abdelmalik-bachir/","section":"Members","summary":"","title":"Abdelmalik Bachir"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/phuong-hoang-nguyen/","section":"Members","summary":"","title":"Phuong-Hoang Nguyen"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/fabrice-salpetrier/","section":"Members","summary":"","title":"Fabrice Salpétrier"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/alberto-l-moran-y-solares/","section":"Members","summary":"","title":"Alberto L. Morán y Solares"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/sonia-mendoza-chapa/","section":"Members","summary":"","title":"Sonia Mendoza Chapa"},{"content":"We are on the fourth floor of the IMAG building, 150 place du Torrent, 38400 Saint-Martin-d\u0026rsquo;Hères, on the university campus, in the LIG laboratory.\nFrom Grenoble, you have to go to the St Martin d\u0026rsquo;Hères university campus. It is served by tram lines B and C.\nWe are next to the Gabriel Fauré MUSE and Bibliothèques universitaires tram stops, on lines B and C.\nView full screen\n","date":null,"permalink":"https://drakkar.imag.fr/join/where-to-find-us/","section":"Join us","summary":"\u003cp\u003eWe are on the fourth floor of the IMAG building, 150 place du Torrent, 38400 Saint-Martin-d\u0026rsquo;Hères, on the university campus, in the LIG laboratory.\u003c/p\u003e\n\u003cp\u003eFrom Grenoble, you have to go to the St Martin d\u0026rsquo;Hères university campus. It is served by tram lines B and C.\u003c/p\u003e\n\u003cp\u003eWe are next to the \u003cem\u003eGabriel Fauré MUSE\u003c/em\u003e and \u003cem\u003eBibliothèques universitaires\u003c/em\u003e tram stops, on lines B and C.\u003c/p\u003e\n\u003cdiv class=\"map-embed\"\u003e\n  \u003ciframe src=\"https://umap.openstreetmap.fr/en/map/drakkar_164547?scaleControl=false\u0026miniMap=false\u0026scrollWheelZoom=false\u0026zoomControl=true\u0026allowEdit=false\u0026moreControl=true\u0026searchControl=null\u0026tilelayersControl=null\u0026embedControl=null\u0026datalayersControl=true\u0026onLoadPanel=undefined\u0026captionBar=false\"\n          title=\"Map of the IMAG building on the Saint-Martin-d'Hères campus\"\n          loading=\"lazy\" frameborder=\"0\" allowfullscreen\u003e\u003c/iframe\u003e\n\u003c/div\u003e\n\u003cp\u003e\u003ca href=\"https://umap.openstreetmap.fr/en/map/drakkar_164547\" target=\"_blank\" rel=\"noreferrer\"\u003eView full screen\u003c/a\u003e\u003c/p\u003e","title":"Where to find us"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/andrzej-duda/","section":"Members","summary":"","title":"Andrzej Duda"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/beatriz-adriana-gonzalez-beltran/","section":"Members","summary":"","title":"Beatriz Adriana González Beltrán"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/brahim-maaref/","section":"Members","summary":"","title":"Brahim Maaref"},{"content":"AT\u0026amp;T\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/cherif-keramane/","section":"Members","summary":"\u003cp\u003eAT\u0026amp;T\u003c/p\u003e","title":"Chérif Keramane"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/cristina-pop/","section":"Members","summary":"","title":"Cristina Pop"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/daniel-conil/","section":"Members","summary":"","title":"Daniel Conil"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/dominique-decouchant/","section":"Members","summary":"","title":"Dominique Decouchant"},{"content":"I am Associate Professor (MCF HC) at Grenoble INP-Ensimag, and a member of the LIG laboratory, in the Drakkar group. I am based in Grenoble, France.\nI received a Ph.D. in Computer Science from INPG in January 1999. While working on my Ph.D. I was an Engineer at Bull and Technical Staff Member with the OSF Research Institute.\nMy office is 416 in the IMAG building.\nPostal address: Laboratoire (UMR5217) - Bâtiment IMAG CS 40700 38058 Grenoble Cedex France\nGPG ID 0x417A3D8A on keys.gnupg.net or key and X.509 certificate\nPublication list on HAL Google Scholar profile ","date":null,"permalink":"https://drakkar.imag.fr/members/faculty/franck-rousseau/","section":"Members","summary":"\u003cp\u003eI am Associate Professor (MCF HC) at \u003ca href=\"http://www.grenoble-inp.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eGrenoble INP\u003c/a\u003e-\u003ca href=\"http://www.ensimag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eEnsimag\u003c/a\u003e, and a member of the \u003ca href=\"http://lig.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eLIG\u003c/a\u003e laboratory, in the \u003ca href=\"http://drakkar.imag.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eDrakkar\u003c/a\u003e group. I am based in \u003ca href=\"http://www.ville-grenoble.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eGrenoble\u003c/a\u003e, France.\u003c/p\u003e\n\u003cp\u003eI received a Ph.D. in Computer Science from INPG in January 1999. While working on my Ph.D. I was an Engineer at \u003ca href=\"http://www.bull.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eBull\u003c/a\u003e and Technical Staff Member with the \u003ca href=\"http://www.osf.org/ri/\" target=\"_blank\" rel=\"noreferrer\"\u003eOSF Research Institute\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003eMy office is 416 in the \n      \n    \u003ca href=\"https://drakkar.imag.fr/join/where-to-find-us/\"\u003eIMAG building\u003c/a\u003e.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003ePostal address:\u003c/strong\u003e\nLaboratoire (UMR5217) - Bâtiment IMAG\nCS 40700\n38058 Grenoble Cedex\nFrance\u003c/p\u003e","title":"Franck Rousseau"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/hoa-binh-nguyen/","section":"Members","summary":"","title":"Hoa-Binh Nguyen"},{"content":"Now at CICESE, Ensenada, Baja California.\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/j-antonio-garcia-macias/","section":"Members","summary":"\u003cp\u003eNow at CICESE, Ensenada, Baja California.\u003c/p\u003e","title":"J. Antonio García Macías"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/jacques-chassin-de-kergommeaux/","section":"Members","summary":"","title":"Jacques Chassin-de-Kergommeaux"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/jean-luc-richier/","section":"Members","summary":"","title":"Jean-Luc Richier"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/justinian-oprescu/","section":"Members","summary":"","title":"Justinian Oprescu"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/laurentiu-sorin-paun/","section":"Members","summary":"","title":"Laurentiu-Sorin Paun"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/leyla-toumi/","section":"Members","summary":"","title":"Leyla Toumi"},{"content":"Intracom, Athenes\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/michael-papathomas/","section":"Members","summary":"\u003cp\u003eIntracom, Athenes\u003c/p\u003e","title":"Michael Papathomas"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/pascal-sicard/","section":"Members","summary":"","title":"Pascal Sicard"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/paul-starzetz/","section":"Members","summary":"","title":"Paul Starzetz"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/pawel-hadam/","section":"Members","summary":"","title":"Pawel Hadam"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/raul-garcia-ruiz/","section":"Members","summary":"","title":"Raúl García Ruiz"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/salah-eddine-kannat/","section":"Members","summary":"","title":"Salah-Eddine Kannat"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/stephane-lo-presti/","section":"Members","summary":"","title":"Stéphane Lo-Presti"},{"content":"Sun Labs\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/stephane-perret/","section":"Members","summary":"\u003cp\u003eSun Labs\u003c/p\u003e","title":"Stéphane Perret"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/vincent-untz/","section":"Members","summary":"","title":"Vincent Untz"},{"content":"Maître de conférences à l\u0026rsquo;ENSEIRB\n","date":null,"permalink":"https://drakkar.imag.fr/members/alumni/xavier-delord/","section":"Members","summary":"\u003cp\u003eMaître de conférences à l\u0026rsquo;ENSEIRB\u003c/p\u003e","title":"Xavier Delord"},{"content":"The Drakkar team studies computer networks, from the radio link up to the protocols and services that run across the Internet. We are part of the Laboratoire d\u0026rsquo;Informatique de Grenoble.\n","date":null,"permalink":"https://drakkar.imag.fr/","section":"Drakkar group","summary":"\u003cp\u003eThe Drakkar team studies computer networks, from the radio link up to the\nprotocols and services that run across the Internet. We are part of the\n\u003ca href=\"https://www.liglab.fr/\" target=\"_blank\" rel=\"noreferrer\"\u003eLaboratoire d\u0026rsquo;Informatique de Grenoble\u003c/a\u003e.\u003c/p\u003e","title":"Drakkar group"},{"content":"Wireless local networks based on the IEEE 802.11b standard, better known as Wi-Fi or Airport, are starting to be deployed fairly widely, and many laptop models now ship with a card of this kind. Attempts to provide connectivity in public places through what are called hot spots are also multiplying: stations, cafés, hotels. With the number of potential users growing quickly and the first hot spot deployments well under way, it is worth asking how well this kind of network stands up to the load of many users and the throughput they ask for.\nWe present surprising results in a study published at the INFOCOM 2003 conference in San Francisco, CA. It turns out that under quite ordinary circumstances this kind of wireless network exhibits a damaging performance anomaly: users who could enjoy better connectivity, and so better throughput, are penalised by those in degraded conditions.\nThe results in more detail #In their usual mode of operation, 802.11b networks rest on a fixed wired infrastructure. Wireless access points are attached to a high-speed local network, usually Ethernet, and bridge between wirelessly connected equipment and the wired network, and then the Internet.\nWireless cards support four different bit rates, corresponding to different signal modulation techniques selected according to the quality of the connection to the access point. Put simply, a device close to the access point gets good throughput, nominally 11 Mbit/s; as it moves away this drops to 5.5 Mbit/s, then 2 Mbit/s, and finally 1 Mbit/s as the signal weakens and degrades.\nHere is what can happen. Suppose several users in an access point\u0026rsquo;s coverage area are close enough to get the best rate, 11 Mbit/s. Another user enters the area and, being relatively far away, connects at 1 Mbit/s. As soon as that user transmits data, throughput collapses for everyone else, bringing them down to the same apparent rate of 1 Mbit/s. The same holds for any of the four rates above: the lowest rate is the one every host ends up seeing.\nThis anomaly is inherent to the CSMA/CA medium access protocol defined in the IEEE 802.11 standard, and it penalises users of the network. Despite a good connection, their apparent performance can degrade sharply, without their knowing and quite unpredictably, simply because a third host with a worse connection to the same access point is active. That said, while the anomaly is plainly observable on any network of this kind, its impact should be qualified on two counts. First, most connected equipment today uses the network in bursts rather than continuously: periods of activity, such as loading a web page, are short compared with the time spent reading it. A long-running transfer — a download, an audio or video connection — will, by contrast, penalise other users continuously. Second, the higher-layer protocols, chiefly TCP, have internal mechanisms that regulate the throughputs observed. We are nevertheless working on ways to limit or remove this anomaly, which could prove very damaging as new audio and video communication applications develop over the Internet. Our study was validated experimentally using 802.11b; although they offer higher rates, products based on 802.11a and 802.11g are subject to the same kind of anomaly, since they use the same access technique.\n[INFOCOM 2003] Martin Heusse, Franck Rousseau, Gilles Berger-Sabbatel, and Andrzej Duda. Performance anomaly of 802.11b. In Proceedings of IEEE INFOCOM 2003, San Francisco, USA, 30 March – 3 April 2003. [IEEE Wireless] IEEE standards for wireless networks ","date":"2 June 2003","permalink":"https://drakkar.imag.fr/news/infocom03-anomalies-de-performances-des-reseaux-wi-fi/","section":"News","summary":"\u003cp\u003eWireless local networks based on the IEEE 802.11b standard, better known as Wi-Fi\nor Airport, are starting to be deployed fairly widely, and many laptop models now\nship with a card of this kind. Attempts to provide connectivity in public places\nthrough what are called hot spots are also multiplying: stations, cafés, hotels.\nWith the number of potential users growing quickly and the first hot spot\ndeployments well under way, it is worth asking how well this kind of network\nstands up to the load of many users and the throughput they ask for.\u003c/p\u003e","title":"INFOCOM'03 — Performance anomaly of Wi-Fi networks"},{"content":"The first goal of VTHD++ was to grow the VTHD experimental platform into a service platform, offering on top of the VTHD network an enriched transport service with several classes of service, and letting the platform\u0026rsquo;s \u0026ldquo;clients\u0026rdquo; isolate and secure their interconnection over the shared VTHD infrastructure through a virtual private network service. This transport service could also be invoked dynamically, through middleware sitting between advanced services and the network and hiding the network\u0026rsquo;s complexity and heterogeneity. \u0026ldquo;Clients\u0026rdquo; here means the RNRT or RNTL projects wishing to use the platform.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/vthd-2002-2004/","section":"Projects","summary":"Plate-forme d\u0026rsquo;expérimentation IP/WDM Vraiment Très Haut Débit pour le développement des techniques, des applications et des services de l\u0026rsquo;Internet de nouvelle génération.","title":"VTHD++ 2002–2004"},{"content":"This project, which began on 1 March 2001, followed on from @IRS. Our part concerned fixed/mobile integration: how to reach your applications and data over the Internet whatever the place and the mode of access. In particular we studied how to integrate quality-of-service and mobility mechanisms into heterogeneous wireless networks: 802.11, Bluetooth and GPRS.\nProject page on the ministry\u0026rsquo;s website.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/irs-2001-2003/","section":"Projects","summary":"\u003cp\u003eThis project, which began on 1 March 2001, followed on from @IRS. Our part\nconcerned fixed/mobile integration: how to reach your applications and data over\nthe Internet whatever the place and the mode of access. In particular we studied\nhow to integrate quality-of-service and mobility mechanisms into heterogeneous\nwireless networks: 802.11, Bluetooth and GPRS.\u003c/p\u003e\n\u003cp\u003eProject \u003ca href=\"http://www.telecom.gouv.fr/rnrt/rnrt/projets/res_3_ap00.htm\" target=\"_blank\" rel=\"noreferrer\"\u003epage\u003c/a\u003e on\nthe ministry\u0026rsquo;s website.\u003c/p\u003e","title":"@IRS++  2001–2003"},{"content":"This work, which set out to design and build a cooperative environment, began with a study of the principles that should guide future cooperative editing systems for the Web. The resulting cooperative editing environment, AllianceWeb, let Internet users move from consuming information to producing it: authors spread across the Internet cooperate on shared, distributed and replicated documents. That first cooperative application revealed what support cooperative work on the Web actually requires, and the research then turned to middleware infrastructures for such support. The work focused on the design and development of the PIÑAS platform, a generic middleware built on top of Web technology providing replication, update and consistency of objects — whether modified as a whole or fragment by fragment — under a range of policies suited to the nature of each object, together with support for nomadic and degraded-mode working.\n","date":null,"permalink":"https://drakkar.imag.fr/projects/past/pinas-2001/","section":"Projects","summary":"\u003cp\u003eThis work, which set out to design and build a cooperative environment, began with\na study of the principles that should guide future cooperative editing systems\nfor the Web. The resulting cooperative editing environment, \u003cem\u003eAllianceWeb\u003c/em\u003e, let\nInternet users move from consuming information to producing it: authors spread\nacross the Internet cooperate on shared, distributed and replicated documents.\nThat first cooperative application revealed what support cooperative work on the\nWeb actually requires, and the research then turned to \u003cem\u003emiddleware\u003c/em\u003e\ninfrastructures for such support. The work focused on the design and development\nof the PIÑAS platform, a generic middleware built on top of Web technology\nproviding replication, update and consistency of objects — whether modified as a\nwhole or fragment by fragment — under a range of policies suited to the nature of\neach object, together with support for nomadic and degraded-mode working.\u003c/p\u003e","title":"PINAS 2001"},{"content":"We took part in @IRS: Architecture Intégrée de Réseaux et Services, supported both by the RNRT (Réseau National de Recherches en Télécommunications) and by the CNRS Telecommunications Programme. It was a substantial project, with a total cost of around 20 MF. @IRS set out to develop and experiment with next-generation Internet protocols and the functions that go with them, so as to offer users services matched to their needs whatever the point of access, fixed or mobile, and to take advantage of an increasingly capable and heterogeneous telecommunication infrastructure (ATM, satellite, wireless networks, local networks).\nThe project focused in particular on the quality-of-service and mobility mechanisms associated with IPv6, the next generation of the IP protocol. The platform built during the project made it possible to evaluate the chosen solutions in the context of new real-time, multimedia and interactive applications. Our contribution addressed resource management in wireless networks to sustain a required level of quality of service, and mechanisms for station mobility.\nWe defined a QoS architecture coupled with mobility management across a set of 802.11 cells, and designed a micro-mobility scheme at the IPv6 level with fast handoffs between adjacent cells. Quality of service is managed at two levels: within a cell and between cells. The first is handled by the access router, which copes with rapid changes in local conditions: mobile hosts tell the access router how much bandwidth they need, and the router configures their QoS parameters. The second concerns a set of cells attached to a border router, which sets long-term policies for the access routers.\nThe group #Scientific lead:\nAndrzej Duda, professor at INPG Permanent staff:\nGilles Berger-Sabbatel, CNRS research scientist Franck Rousseau, associate professor at INPG PhD students:\nJosé Antonio García Macías Leyla Toumi The problem #LSR\u0026rsquo;s part in @IRS concerned mainly quality of service and mobility in wireless networks under IPv6: assessing how well wireless networks can support quality of service, and proposing, testing and evaluating mechanisms that improve it for nomadic stations attached to the wireless network.\nWireless networks rest on a set of devices, called base stations, relaying transmissions between a fixed communication infrastructure and the mobiles. The area a base station covers forms a cell. Wireless networks therefore raise a number of specific problems:\nIt is hard to guarantee the availability of resources on a radio channel whose access method does not necessarily allow fine enough control of the data flows. In particular, flows originating from mobile stations can only be controlled on the stations themselves, in a distributed way. Flows towards the mobiles, by contrast, admit more precise control. The bandwidth actually available to a mobile can fluctuate as the station moves, and also with the traffic the cell is carrying for other mobiles. Movement may take a mobile station out of a cell\u0026rsquo;s coverage. The station then has to register with another cell and routing has to change accordingly. This may happen mid-communication, and should disturb transmissions and quality of service as little as possible — in reliability (no data lost because of the cell change), in delay (the change must not introduce more delay than the application can accept), and in bandwidth (the bandwidth the application needs must remain available in the new cell). We chose to restrict the study to wireless local networks. The only longer-range networks usable at the time were wireless telephony networks, whose low bit rate (9.6 kbit/s) seriously limits their use for data, and where the wireless network presents itself as a black box inside which no control is possible.\nTransmission technology #The technologies available for wireless local networks were essentially IEEE 802.11 and Wireless ATM. IEEE 802.11 was then the most mature and widespread, and among its implementations we selected Lucent\u0026rsquo;s WaveLAN.\nWaveLAN transmits in the 2.4 GHz band using DSSS (Direct Sequence Spread Spectrum). The channel is shared using CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance). It offers 2 Mbit/s, dropping to 1 Mbit/s when transmission quality degrades (a falling signal-to-noise ratio). WaveLAN Turbo cards can in fact reach 6 Mbit/s, though that falls outside the IEEE 802.11 standard. WaveLAN\u0026rsquo;s range can reach 300 m outdoors, but is limited to under twenty metres indoors with partitions.\nWaveLAN supports two modes of use: ad hoc networks, where mobiles communicate directly with each other and need not be attached to any fixed infrastructure; and infrastructure networks. In the latter, mobiles communicate through base stations called WavePoints, themselves attached to a conventional Ethernet network for which they act as bridges. Cells attached to the same Ethernet are seen as belonging to the same network at the IP level.\nThe interfaces of mobile stations continuously assess the signal-to-noise ratio of the transmission received from the base station they are attached to. When it falls below a threshold, the interface enters a mode in which it looks for other base stations offering better transmission quality. When a further threshold is reached, the cell change is triggered: the mobile registers with a new base station and transmits through it. This mechanism is called handoff. In the general case mobiles stay within the same IP network, so there is no mobility at the IP level.\nQuality of service #The IETF proposed two approaches to quality of service: integrated services (IntServ) and differentiated services (DiffServ). Both have limits. IntServ rests on a signalling protocol, RSVP, considered not to scale and so ill-suited to large networks. DiffServ tries to sidestep the difficulty by reducing the problem to managing traffic classes with different priorities, combined with policing of sources. It is, however, hard to characterize the quality of service obtained and to guarantee that, for a given network configuration, it matches what applications ask for. Because of these difficulties the field remains open, work on both integrated and differentiated services continues, and new approaches keep being proposed. We therefore set out to evaluate some of them.\nWireless local networks bring several difficulties of their own: a MAC layer with no notion of priority as it stands, hosts that move, and channel bandwidth that fluctuates with the ambient electromagnetic noise. In practice, though, a properly dimensioned network can be made to guarantee a minimum bandwidth.\nWithin @IRS we set out to use the mechanisms proposed at the IP level to implement quality of service. That requires controlling the admission of mobiles to each cell. Cells are therefore managed through a router controlling access and making it possible to implement priorities in traffic forwarding, and the IP stacks of mobile hosts have to include source policing (token bucket). This adds a difficulty to handoff, which may then involve a change of network and so require routing changes. We set out to find mechanisms suited to mobility local to a single administrative entity (subnets within one local network), allowing a more efficient handoff than the mechanisms proposed by Mobile IP — in particular, limiting the delay handoff introduces and the risk of data loss.\nChoice of architecture #In the architecture we selected, the wireless network attaches to the rest of the experimental network through a border router, which performs:\nbasic functions: classification and marking, policing, admission control; specific functions: resource management, handover. Three approaches to adding quality-of-service functions are possible:\nAt the MAC level, by modifying the access point: this would mean reimplementing handover using a resource management function provided by the border router. Short of close collaboration with the hardware vendor, the scope for such a change looks rather limited. IEEE 802.11 offers no support for quality of service, though Lucent has made proposals in that direction. At the MAC level, by designing an ad hoc access point: here one exploits the direct station-to-station communication the network allows, rewriting the bridging (Ethernet to WaveLAN) and cell management functions and folding quality-of-service functions into them. At the IP level: the WaveLAN access point attaches to a PC router over a dedicated Ethernet segment. This solution costs more in hardware complexity, requires managing an IP subnet per WaveLAN cell and handling handover at the IP level. But it also lifts quality-of-service handling to the IP level, where the available mechanisms can be used independently of the MAC layer, and it avoids depending too closely on what the hardware offers and on how well documented that is. Resource management can be handled as follows:\nbandwidth-broker functions performed by the border router, reserving part of the resources (throughput) for a class of service; the cell manager (the access-point router) limiting the number of mobiles of a given class per cell, and allowing (overlapping) cells to be reserved for certain classes of service. It performs a token-bucket function under the control of the border router. Experimental platform #The planned experimental platform consists of:\na PC router providing the ATM interconnection with Renater-2 and the border router functions, with a VP to the core router at INRIA Sophia Antipolis; two WaveLAN base stations communicating with the mobiles, attached to the PC router over Ethernet; several mobile machines (at least two laptops). Several options are possible for the base stations:\nUse the manufacturer\u0026rsquo;s base stations (WavePoint) connected directly to the Ethernet. This allows no control over resource usage, and handover is handled at the MAC level. Use fixed PCs fitted with WaveLAN cards. This requires reimplementing all the WavePoint functions. It offers the widest range of possibilities, at the cost of considerable implementation work, and with no guarantee in advance that the card vendor will supply all the necessary information. Use WavePoints connected to a PC router over a dedicated Ethernet segment. This costs more in hardware, but gives better control over data flows, particularly at the IP level, without having to touch the lower communication layers. ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/irs-1998-2001/","section":"Projects","summary":"\u003cp\u003eWe took part in @IRS: \u003cem\u003eArchitecture Intégrée de Réseaux et Services\u003c/em\u003e, supported\nboth by the RNRT (Réseau National de Recherches en Télécommunications) and by the\nCNRS Telecommunications Programme. It was a substantial project, with a total\ncost of around 20 MF. @IRS set out to develop and experiment with next-generation\nInternet protocols and the functions that go with them, so as to offer users\nservices matched to their needs whatever the point of access, fixed or mobile,\nand to take advantage of an increasingly capable and heterogeneous\ntelecommunication infrastructure (ATM, satellite, wireless networks, local\nnetworks).\u003c/p\u003e","title":"@IRS 1998–2001"},{"content":"The IPv6 project demonstrated the value of letting the Internet protocols evolve. Its outlook was twofold: making IPv6 available to the academic community by taking part in the national Renater network\u0026rsquo;s IPv6 deployment project, and putting the expertise gained to use, as project members joined international manufacturers (Sun) or took part in other local and national research projects. We developed parts of the software needed for our experiments, and in doing so set up a collaboration with the IPv6 effort at INRIA-Rocquencourt. That cooperation led to several joint software deposits with the Agence pour la Protection des Programmes. The software was sold by INRIA to Bull and became the basis of the IPv6 stack for AIX on IBM and Bull systems. We also signed an agreement with Bull allowing them to use the test platform for their own work on the AIX IPv6 stack.\nObjectives #Until he left IMAG, A. Durand (IMAG-DMI) was an active member of the various IPv6 working groups at the IETF (Internet Engineering Task Force, the Internet\u0026rsquo;s standards body). He authored several working documents and became co-chair of the IETF working group on IPv6 deployment. In parallel, a French working group on IPv6 experimentation, bringing together academics and industry, had existed since late 1995. Members of the IPv6 project took an active part in it, and the group met regularly on IPv6 research themes: mobility, quality of service, deployment.\nAn experimental platform was set up, with hardware lent by several manufacturers (Digital Equipment, Bull, IBM). It supported an interoperability test campaign for the BGP4+ routing protocol, bringing together academics and manufacturers, and a contract with Bull to test the IPv6 software of the AIX system. The platforms of the G6 members were linked by an IPv6 network, the \u0026ldquo;G6bone\u0026rdquo;, built from tunnels running mostly over the Renater IPv4 infrastructure. Its topology centered on the IMAG platform, which also provided access to the \u0026ldquo;6bone\u0026rdquo;, the worldwide experimental IPv6 network.\nResults # Reference book on IPv6: G. Cizault (collective pseudonym). IPv6, Théorie et pratique. O\u0026rsquo;Reilly, 1998 (first edition) and 1999 (second edition, co-editor J-L. Richier). Deposit of the software \u0026ldquo;IPv6 for NetBSD and FreeBSD\u0026rdquo; with the Agence pour la Protection des Programmes, 1998 and 2000. Hosted a meeting of the IETF IPv6 working groups, Grenoble, 1999. Hosted a week of IPv6 routing interoperability testing, Grenoble, 1998. Software deposits, \u0026ldquo;IPv6 for NetBSD and FreeBSD\u0026rdquo;, Agence pour la Protection des Programmes, February 1996, February 1998, first quarter 2000. Contract between Bull and INRIA for the commercial use of \u0026ldquo;IPv6 for NetBSD and FreeBSD\u0026rdquo;, 1997–1999. Contract with Bull to test the AIX IPv6 software on the IMAG platform, 1997–1999. Took part in the \u0026ldquo;IPv6 Bake-off\u0026rdquo; IPv6 software testing event (1–6 October 2000) organized by ETSI in Sophia Antipolis. Talks and seminars on IPv6 in France and abroad: Convention IP Future'98, Paris, November 1998; CFIP (Colloque Francophone sur l\u0026rsquo;Ingénierie des Protocoles), Nancy, April 1999; 2nd Tunisian-French Workshop on Internet Technologies, Tunis, April 1999; Journées Réseaux (JRES 2001), December 2001. ","date":null,"permalink":"https://drakkar.imag.fr/projects/past/ipv6-1998-2001/","section":"Projects","summary":"\u003cp\u003eThe IPv6 project demonstrated the value of letting the Internet protocols evolve.\nIts outlook was twofold: making IPv6 available to the academic community by\ntaking part in the national Renater network\u0026rsquo;s IPv6 deployment project, and\nputting the expertise gained to use, as project members joined international\nmanufacturers (Sun) or took part in other local and national research projects.\nWe developed parts of the software needed for our experiments, and in doing so\nset up a collaboration with the IPv6 effort at INRIA-Rocquencourt. That\ncooperation led to several joint software deposits with the Agence pour la\nProtection des Programmes. The software was sold by INRIA to Bull and became the\nbasis of the IPv6 stack for AIX on IBM and Bull systems. We also signed an\nagreement with Bull allowing them to use the test platform for their own work on\nthe AIX IPv6 stack.\u003c/p\u003e","title":"IPv6 1998–2001"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/categories/","section":"Categories","summary":"","title":"Categories"},{"content":"","date":null,"permalink":"https://drakkar.imag.fr/tags/","section":"Tags","summary":"","title":"Tags"}]