Istituto di Scienza e Tecnologie dell'Informazione     
Chessa S., Giunta G., Oligeri G. Embedding source signature in multicast wireless video streams. In: IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks. WoWMoM (Helsinki, Finland, 18-21 June 2007). Proceedings, pp. 1 - 7. IEEE, 2007.
We consider the problem of source authentication of video streams in multicast environments. We proposed a novel algorithm which combines signature amortization based on hash chains and watermarking to embed hash chains in the video stream. The algorithm exploits a novel watermarking procedure using Reed-Solomon mark encoding which ensures error-free and fast convergence mark extraction. We show that the algorithm has a negligible impact on the video stream quality and we evaluate the configuration parameters of the algorithm which ensure proper verification of the source authenticity.
DOI: 10.1109/WOWMOM.2007.4351719
Subject Watermarking

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