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arXiv 1202.1387cs.ITmath.IT
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广义多址和广播信道上的连续秘密密钥协商

Successive Secret Key Agreement over Generalized Multiple Access and Broadcast Channels

Somayeh Salimi, Mikael Skoglund, Mahmoud Salmasizadeh, Mohammad Reza Aref

摘要:

考虑了三个用户之间的秘密密钥协商框架,其中用户1和2中的每一个意图与用户3共享秘密密钥,并且用户1和2相对于彼此是窃听者。存在从用户1和2到用户3的广义离散无记忆多址接入信道(GDMMAC),其中三个用户从该信道接收输出。此外,存在从用户3到用户1和2的广播信道(BC)。秘密密钥共享是指GDMMAC和BC可以连续使用的情况。在此框架下,推导出了秘密密钥容量区域的内界。此外,对于GDMAC和BC的信道输入和输出以某种顺序形成马尔可夫链的特殊情况,导出了秘密密钥容量区域。并通过一个二元算例对结果进行了讨论。

英文摘要:

A secret key agreement framework between three users is considered in which each of the users 1 and 2 intends to share a secret key with user 3 and users 1 and 2 are eavesdroppers with respect to each other. There is a generalized discrete memoryless multiple access channel (GDMMAC) from users 1 and 2 to user 3 where the three users receive outputs from the channel. Furthermore, there is a broadcast channel (BC) from user 3 to users 1 and 2. Secret key sharing is intended where GDMMAC and BC can be successively used. In this framework, an inner bound of the secret key capacity region is derived. Moreover, for a special case where the channel inputs and outputs of the GDMAC and the BC form Markov chains in some order, the secret key capacity region is derived. Also the results are discussed through a binary example.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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