Istituto di Scienza e Tecnologie dell'Informazione     
Chessa S., Di Pietro R., Giunta G., Oligeri G. Robust and efficient authentication of video stream broadcasting. Technical report, 2009.
We present a novel authentication scheme that leverages satellite link characteristics such as low bit error rate and no packet reordering. Our approach combines watermarking and signature amortization; the computation overhead experienced on receiver sums up to two hash per block of pictures, and only one digital signature verification for the whole received stream. We propose a theoretical approach to evaluate the algorithm effectiveness, and we present simulation results to validate the proposed authentication algorithm.
Subject Security
D.4.6 Security and Protection

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