In some detail, the paper expounds the principle about simple power analysis (SPA) attacks against the general cryptography and a particular theory against data encryption standard (DES) algorithm.
详细地阐述了对通用密码系统实施简易功耗分析攻击(SPA)的理论基础和对DES算法攻击的特定理论，并提出了对SPA的改进算法。
This paper introduces attacks about Simple Power Analysis (SPA) and Differential Power Analysis (DPA).
本文主要介绍攻击智能卡的简易功率分析(SPA)，微分功率分析(DPA)。
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