Than Duc Nguyen

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A special case of the discrete memoryless cooperative broadcast channel, as defined by Dabora and Servetto, is investigated. The capacity region is provided in the case where the information messages are sent over a deterministic broadcast channel (Y 1 , Y 2) = h(X) with a (C 12 , C 21)-admissible conference link between the receivers. In this framework we(More)
RSA cryptosystem is the most popular public key cryptosystem which provides both secrecy and digital signatures. Due to RSA's popularity, many attacks on it have been developed. In this paper, we consider experimentally attacks on low private exponent RSA and find that: (i) lattice attack using Gauss lattice reduction algorithm is more effective than Wiener(More)
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