A Secure Traitor Tracing Scheme against Key Exposure

Details A Secure Traitor Tracing Scheme against Key Exposure A Secure Traitor Tracing Scheme against Key Exposure

2005-08-02

arxiv.org/abs/cs/0508011v1

Computer Science

Cryptography and Security

5 pages, IEEE International Symposium on Information Theory 2005 (ISIT 2005)

Scientific paper

Copyright protection is a major issue in distributing digital content. On the other hand, improvements to usability are sought by content users. In this paper, we propose a secure {\it traitor tracing scheme against key exposure (TTaKE)} which contains the properties of both a traitor tracing scheme and a forward secure public key cryptosystem. Its structure fits current digital broadcasting systems and it may be useful in preventing traitors from making illegal decoders and in minimizing the damage from accidental key exposure. It can improve usability through these properties.

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