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Title: Optimized protection of streaming media authenticity
Keywords: Stream Authentication; Media Streaming; Rate-Distortion-Authentication Optimization; Butterfly Authentication; Generalized Butterfly Graph
Issue Date: 7-Mar-2008
Citation: ZHANG ZHISHOU (2008-03-07). Optimized protection of streaming media authenticity. ScholarBank@NUS Repository.
Abstract: This thesis studies the problem of providing quality-optimized authentication for multimedia content delivered over public and lossy network, which has two aspects: authenticity and quality. The former is to assure that any unauthorized alteration should be detected by a receiver, while the latter is to optimize the quality of the authenticated media. Towards these goals, we first propose a Butterfly Authentication, a graph-based authentication method achieving high robustness against packet loss. We then extend it to Generalized Butterfly Graph (GBG) Authentication to allow a flexible balance between overhead and robustness. In addition, considering that media packets are of unequal importance, we propose a Content-aware Optimized media stream authentication method to compute the best authentication graph achieving optimized media quality. Finally, we propose a Rate-Distortion-Authentication (R-D-A) Optimized streaming method, to compute the packet transmission schedule achieving optimized media quality, based on both packet importance and the authentication dependency.
Appears in Collections:Ph.D Theses (Open)

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