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Unequal authenticity protection (UAP) for rate-distortion-optimized secure streaming of multimedia over wireless networks
Zhi Li; Qibin Sun; Yong Lian;
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
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Page(s):4 pp.
Abstract:
This paper presents a new notion of authenticating degraded multimedia content streamed over wireless networks - unequal authenticity protection (UAP). Multimedia content differs from other data in that the importance of different bits within a bitstream often varies. Therefore, given limited resources, a natural solution is to apply better authenticity protection to more important bits, and vice versa. In this paper, a quantitative relationship between the optimal authentication probability and the given resource budget is firstly derived, followed by a proposed authentication graph which realizes the idea of UAP. Simulation results further confirm the validity of the proposal
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