Cryptology ePrint Archive: Report 2008/450

On the Security of Fully Collusion Resistant Traitor Tracing Schemes

Yongdong WU and Robert H. Deng

Abstract: This paper investigates the security of FTT (fully collusion resistant traitor tracing) schemes in terms of DOT (Denial Of Tracing) and framing. With DOT attack, a decoder is able to detect tracing activity, and then prolongs the tracing process such that the tracer is unable to complete tracing job in a realistic time duration and hence has to abort his effort. On the other hand, by merely embedding several bytes of non-volatile memory in the decoder, we demonstrate, for the FTT schemes, how the decoder can frame innocent users at will. Furthermore, we propose a countermeasure on the framing attack.

Category / Keywords: public-key cryptography / Traitor Tracing, Denial of Tracing

Date: received 24 Oct 2008

Contact author: wydong at i2r a-star edu sg

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Version: 20081027:200117 (All versions of this report)

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