sm4加密算法c语言代码,选择轮密钥异或输入进行sm4密码算法侧信道能量分析的方法 Select the round key input XOR cipher algorithm sm4 side c...

摘要：

本发明公开了选择轮密钥异或输入进行SM4密码算法侧信道能量分析的应用,其核心在于进行SM4密码算法侧信道能量分析过程中,选择S盒或轮函数作为攻击点建立汉明距离模型,以轮密钥异或输入作为汉明距离模型的前续状态v1,对S盒进行攻击时,汉明距离(HD(v1,v2))模型的后继状态v2是S盒输出;对轮函数进行攻击时,汉明距离(HD(v1,v2))模型的后继状态v2是轮函数输出/输入. The present invention discloses a selector wheel key XOR input SM4 cryptographic algorithms side channel energy analysis applications, the core is carried SM4 cryptographic algorithms side channel energy analysis process, select the S-boxes or wheels as a function of the point of attack to establish Hamming distance model to turn the key input XOR as a preceding state Hamming distance model v1, when the S-box attack, the successor state of the Hamming distance (HD (v1, v2)) v2 model is S-box output; for the round function when attacked, the successor state of the Hamming distance (HD (v1, v2)) model v2 is round function output / input. 该方法可应用于SM4密码算法的CPA/DPA侧信道能量分析. Energy analysis method can be applied to the channel SM4 cipher CPA / DPA side. 利用本发明的方法提高了正确的猜测密钥与能量信息之间的相关性,增强了分析有效性和成功率. With the present invention, a method to improve the relevance of guessing key energy and information between the enhanced analysis of the effectiveness and success rate.

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