摘要

A Multimedia content protection (MCP) scheme based on joint iris code of the user and cryptography technologies is proposed in this paper. This scheme is novel by introducing iris-based identification into authentication and protection scheme using smart card. The feature extraction employs the rich 2-D information of the iris rather than the reported 1-D iris information, and the obtained performance is translation, rotation and scale invariant. An iris-based key pair generation is introduced, which is strong enough to resist illegal key exchange problems in password-only encryption way. To effectively prevent the playback attack and masquerade attack, the synchronous shake hands protocol, along with the improved authentication scheme is proposed. Furthermore, the security criteria control of the proposed method is addressed. Experiments and analysis are conducted to show the validity of this method.