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arXiv 1801.02563cs.ITmath.IT
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Shannon密码系统侧信道攻击的信息论安全性

Information Theoretic Security for Side-Channel Attacks to the Shannon Cipher System

Yasutada Oohama, Bagus Santoso

摘要:

研究了Shannon密码系统的侧信道攻击。为了对Shannon密码系统进行侧信道攻击,我们将其看作是通过来自两个分布式传感器的编码数据进行的信号估计。这可以用公式表示为Ahlswede、Körner(1975)和Wyner(1975)提出并研究的一个辅助信源编码问题。我们进一步研究所提出的问题,得到新的保密界。我们的结果是由Watanabe和Oohama(2012)在有界存储evasdropper上获得的结果与Oohama(2015)为一个助手信源编码问题建立的指数强逆定理的耦合导出的。

英文摘要:

We study side-channel attacks for the Shannon cipher system. To pose side channel-attacks to the Shannon cipher system, we regard them as a signal estimation via encoded data from two distributed sensors. This can be formulated as the one helper source coding problem posed and investigated by Ahlswede, Körner(1975), and Wyner(1975). We further investigate the posed problem to derive new secrecy bounds. Our results are derived by a coupling of the result Watanabe and Oohama(2012) obtained on bounded storage evasdropper with the exponential strong converse theorem Oohama(2015) established for the one helper source coding problem.

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