81documents trouvés
De-anonymization attack on geolocated datasets
S.GAMBS, M.O.KILLIJIAN, M.NUNEZ DEL PRADO
IRISA, TSF
Rapport LAAS N°12409, Juillet 2012, 12p.
Lien : http://hal.archives-ouvertes.fr/hal-00718763
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Abstract
With the advent of GPS-equipped devices, more and more geolocated datasets are being collected everyday, thus raising the issue of the privacy risks incurred by the individuals whose movements are recorded. In this work, we focus on a specific inference attack called the de-anonymization attack, by which an adversary tries to infer the identity of a particular individual behind a mobility trace. More specifically, we propose an implementation based on a mobility model called Mobility Markov Chain (MMC). A MMC is built out from the mobility traces observed during the training phase and is used to perform the attack during the testing phase. We design distance metrics between MMCs and combine these distances to build de-anonymizers that can re-identify users in an anonymous dataset. Moreover, experimentations conducted on real datasets show that the attack is efficient in terms of accuracy and resilient to sanitization mechanisms.
Campagne de collecte de données et vie privée
N.HADERER, M.NUNEZ DEL PRADO, R.ROUVOY, M.O.KILLIJIAN, M.ROY
LIFL, TSF
Manifestation avec acte : GDR GPL'12, Renne (France), 20-22 Juin 2012, 2p. , N° 12339
Lien : http://hal.inria.fr/hal-00711609
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Résumé
Les communautés scientifiques ont souvent recours à la simulation dans le but de valider leurs théories. Cependant, la pertinence des résultats obtenus est fortement dépendante de la qualité des traces générées par les simulateurs. Ce phénomène est particulièrement vrai lorsque l'on considère les traces de mobilité humaine qui sont difficilement prévisibles. Dans ce contexte, la popularité des nouvelles générations de smartphones, équipés d'une grande variété de capteurs (GPS, bluetooth, accéléromètre, etc.), offre de nouvelles perspectives pour la collecte de données réalistes au sein d'une population. Cependant, la nature sensible, du point de vue de la vie privée, des informations collectées représente un des principaux obstacles aux déploiement généralisé d'une application de collecte de données et à son adoption auprès des utilisateurs. C'est pourquoi nous présentons UBILAB , une nouvelle plate-forme permettant aux scientifiques de mettre en place facilement des campagnes de collecte de données et d'inférer automatiquement différentes attaques sur les données partagées par les utilisateurs mobiles afin de les avertir d'un risque potentiel d'atteinte à leurs informations privées.
AMORES: an Architecture for MObiquitous REsilient Systems
C.ARTIGUES, Y.DESWARTE, J.GUIOCHET, M.J.HUGUET, M.O.KILLIJIAN, D.POWELL, M.ROY, C.BIDAN, N.PRIGENT, E.ANCEAUME, S.GAMBS, G.GUETTE, M.HURFIN, F.SCHETTINI
TSF, MOGISA, SUPELEC, IRISA, MobiGIS, Grenade
Manifestation avec acte : European Dependable Computing Conference (EDCC) 2012 du 08 mai au 11 mai 2012, Sibiu (Roumanie), Mai 2012, 6p. , N° 12642
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128592Testing the input timing robustness of real-time control software for autonomous systems
D.POWELL, J.ARLAT, H.CHU, F.INGRAND, M.O.KILLIJIAN
TSF, RIS
Manifestation avec acte : European Dependable Computing Conference (EDCC 2012), Sibiu (Roumanie), 8-11 Mai 2012, 11p. , N° 12100
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127260Locanyms: towards privacy-preserving location-based services
S.GAMBS, M.O.KILLIJIAN, M.ROY, M.TRAORE
IRISA, TSF
Manifestation avec acte : Sibiu (Roumanie), 8 -11 Mai 2012, 6p. , N° 12255
Lien : http://hal.archives-ouvertes.fr/hal-00699742
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Abstract
Recent advances in geolocated capacities, secure and veri- fied positioning techniques, ubiquitous connectivity, as well as mobile and embedded systems, have led to the develop- ment of a plethora of Location-Based Services (LBS), per- sonalizing the services they deliver according to the location of the user querying the service. However, the widespread use of mobile equipments, with ever increasing availability, precision, performance and connectivity have introduced the creepy feeling of being continuously monitored, in particular by the providers of the LBS. Thus, beyond the benefits they provide, users have started to be worried about the privacy breaches caused by such systems. The main objective of this paper is to discuss the privacy issues raised by LBS and the challenges of implementing privacy-preserving location- aware systems. Moreover, we also give a brief overview of positioning techniques used by LBS and we introduce the novel concept of locanym, which corresponds to a pseudonym linked to a particular location that could be used as a basis for developing privacy-preserving LBS.
Next place prediction using mobility Markov chains
S.GAMBS, M.O.KILLIJIAN, M.NUNEZ DEL PRADO
IRISA, TSF
Manifestation avec acte : Eurosys 2012 Workshop on Measurement Privacy and Mobility (MPM 2012), Bern (Suisse), 10 Avril 2012, 6p. , N° 12539
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128186Towards temporal mobility markov chains
S.GAMBS, M.O.KILLIJIAN, M.NUNEZ DEL PRADO
IRISA, TSF
Manifestation avec acte : International Workshop on Dynamicity (DYNAM 2011), Toulouse (France), 12 Décembre 2011, 2p. , N° 11837
Lien : http://hal.archives-ouvertes.fr/hal-00675544
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Abstract
In this paper, we define a type of mobility model that we coin as temporal Mobility Markov Chain (tMMC), which can represent in a compact yet precise way the mobility behaviour of an individual. In short, a tMMC is a timed and probabilistic automaton in which states represent points of interest (POIs) of an individual and transitions between states corresponds to a movement from one POI to another one. The automaton is probabilistic in the sense that a transition between POIs is non deterministic but rather that there is a probability distribution over the transitions that corresponds to the probability of moving from one POI to another (edges are directed).
Show me how you move and I will tell you who you are
S.GAMBS, M.O.KILLIJIAN, M.NUNEZ DEL PRADO
IRISA, TSF
Revue Scientifique : Transactions on Data Privacy, Vol.4, N°2, pp.103-126, Août 2011 , N° 11461
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125194The ARUM experimentation platform : an open tool to evaluate mobile systems applications
M.O.KILLIJIAN, M.ROY, G.SEVERAC
TSF, 2I
Manifestation avec acte : International Symposium on Autonomous Minirobots for Research and Edutainment (AMiRE 2011), Bielefeld (Allemagne), 23-25 Mai 2011, 15p. , N° 11804
Lien : http://hal.archives-ouvertes.fr/hal-00667832
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Abstract
This paper present the ARUM robotic platform. Inspired by the needs of realism in mobile networks simulation, this platform is composed of small mobiles robots using real, but attenuated, Wi-Fi communication interfaces. To reproduce at a laboratory scale mobile systems, robots are moving in an 100 square meters area, tracked by a precise positioning system. In this document we present the rational of such simulation solution, provide its complete description, and show how it can be used for evaluation by briefly explaining how to implement specific algorithms on the computers embedded by the robots. This work is an application of multi-robotics to research, presenting solutions to important problems of multi-robotics.
Robustness of automative applications using reflective computing: lessons learnt
J.C.FABRE, M.O.KILLIJIAN, F.TAIANI
TSF, Lancaster Univ.
Manifestation avec acte : ACM Symposium on Applied Computing (SAC 2011), Taichung (Taiwan), 21-24 Mars 2011, 6p. , N° 10773
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