Improved Privacy-Preserving P2P Multimedia Distribution Based on Recombined Fingerprints
Abstract— Improved Privacy-Preserving P2P Multimedia Distribution Based on Recombined Fingerprints. Anonymous ﬁngerprint has been suggested as a convenient solution for the legal distribution of multimedia contents with copyright protection whilst preserving the privacy of buyers, whose identities are only revealed in case of illegal re-distribution. However, most of the existing anonymous fingerprinting protocols are impractical for two main reasons: 1) the use of complex time-consuming protocols and/or homomorphic encryption of the content, and 2) a unicast approach for distribution that does not scale for a large number of buyers. This paper stems from a previous proposal of recombined ﬁngerprints which overcomes some of these drawbacks. However, the recombined ﬁngerprint approach requires a complex graph search for traitor tracing, which needs the participation of other buyers , and honest proxies in its P2P distribution scenario. This paper focuses on removing these disadvantages resulting in an efﬁcient, scalable, privacy-preserving and < Final Year Projects 2016 > P2P-based ﬁngerprinting system.
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