电磁辐射信息泄漏及平均技术的有效性

Hidema Tanaka
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引用次数: 11

摘要

众所周知,在个人电脑和智能卡等It设备中,电磁辐射与处理信息之间存在关系。本文介绍了如何估计作为电磁辐射泄漏的信息量以及平均技术的有效性。我们假设IT设备和接收器之间的区域是一个通信信道,我们通过其信道容量来定义通过电磁辐射泄漏的信息量。并对窃听者通过电磁辐射所能获得的最大信息量进行了估计。通过这些估计,我们得到了有效平均技术所需的数据量。
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Information Leakage via Electromagnetic Emanation and Effectiveness of Averaging Technique
It is well known that there is relationship between electromagnetic emanation and processing information in IT devices such as personal computers and smart cards. In this paper, we show how to estimate amount of information that is leaked as electromagnetic emanation and effectiveness of averaging technique. We assume the area between the IT device and the receiver is a communication channel, and we define the amount of information leakage via electromagnetic emanations by its channel capacity. And we also estimate the maximum amount of information which eavesdropper can get via electromagnetic emanation. By using these estimations, we derive the necessary amount of data for effective averaging technique.
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