A provably secure anonymous buyer-seller watermarking protocol
IEEE Transactions on Information Forensics and Security（2010）
摘要
Buyer-seller watermarking (BSW) protocols allow copyright protection of digital content. The protocol is anonymous when the identity of buyers is not revealed if they do not release pirated copies. Existing BSW protocols are not provided with a formal analysis of their security properties. We employ the ideal-world/real-world paradigm to propose a formal security definition for copyright protection protocols, and we analyze an anonymous BSW protocol and prove that it fulfills our definition. Additionally, we implement the protocol and measure its efficiency.
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关键词
bsw protocol,provably secure anonymous buyer-seller,buyer-seller watermarking,digital content,formal security definition,security property,copyright protection,real-world paradigm,formal analysis,copyright protection protocol,anonymous bsw protocol,computer networks,protocols,cryptography,watermarking,encryption,public key,provable security
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