Entrelacement des mécanismes d'identification et de respect de la vie privée pour la protection des contenus externalisés

Julien Lolive 1, 2, 3
1 Lab-STICC_TB_CID_SFIIS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
3 CIDRE - Confidentialité, Intégrité, Disponibilité et Répartition
IRISA-D1 - SYSTÈMES LARGE ÉCHELLE, Inria Rennes – Bretagne Atlantique , CentraleSupélec
Abstract : Since the democratization of Internet, the illegal redistribution of copyrighted content (movie, picture, ...) has grown tremendously, in particular to the possibility of sharing easily this type of content on P2P network. On the one hand, this situation is problematic for the owner of the content as they want to control the distribution of such data and deter potential offenders. On the other hand, the constant and generalizing tracking of users by companies and governments has lead to a trust crisis. The main objective of this thesis is to be able to trace malicious users who redistribute illegally a content while protecting their privacy if they behave honestly. To reach this objective, we have designed an anonymous fingerprinting protocol enabling the personalization of a content before his distribution with a unique codeword. This codeword can be used to trace malicious users of they redistribute illegally a content. The codeword comes from an anti-collusion Tardos code that allow to trace malicious users even if the forgery is obtained by a collusion. This protocol reaches strong security and privacy properties such as traitor tracing, anti-framing, revocable anonymity, buyer and item unlinkability. To achieve these properties, the protocol combines building block such as oblivious transfer, group signatures and an anonymous communication channel. This protocol is the first one in the literature to reach strong anonymity properties as well as the performance of Tardos anti-collusion codes.
Document type :
Theses
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https://hal.archives-ouvertes.fr/tel-01404946
Contributor : Bibliothèque Télécom Bretagne <>
Submitted on : Tuesday, November 29, 2016 - 1:35:17 PM
Last modification on : Monday, February 25, 2019 - 3:14:15 PM
Long-term archiving on : Monday, March 27, 2017 - 6:41:27 AM

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Julien Lolive. Entrelacement des mécanismes d'identification et de respect de la vie privée pour la protection des contenus externalisés. Cryptographie et sécurité [cs.CR]. Télécom Bretagne; Université de Rennes 1, 2016. Français. ⟨NNT : 2016TELB0400⟩. ⟨tel-01404946⟩

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