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Commitment schemes are fundamental building blocks in cryptography, and have wide applications in constructing various protocols. Non-malleable commitment considers concurrent executions of a commitment scheme against a man-in-the-middle adversary. In this paper, we investigate non-malleability of statistically hiding commitment schemes, and present the first concurrent non-malleable statistically...
We consider a Decoded-and-Forward (DF) cooperative relaying network without a direct link. We investigate the outage probability (OP) of cooperation systems with either a DF scheme or a Selective DF (S-DF) scheme when relay channels experience statistically different Rayleigh fading. In the case of the DF system, an upper and lower bound of the OP are established to show the asymptotic performance...
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