nexus-tyf / xiao-lai-white-box-sm4 Goto Github PK
View Code? Open in Web Editor NEWA Xiao-Lai's white-box SM4 implementation.
License: Apache License 2.0
A Xiao-Lai's white-box SM4 implementation.
License: Apache License 2.0
可以实现 wbsm4-nc 的算法:
WBSM4-NC方案相较于肖-来白盒SM4实现方
案在方案架构上没有做出改变,只是对肖-来白盒SM4
查找表的输出部分添加了8 bit的非线性编码,以异
或表完成查找表结果的异或操作。WBSM4-NC方
案将查表结果进行异或后的结果的线性编码过程再
用查找表及异或操作代替,使得整个加密过程中与
密钥相关的中间状态都受到8 bit非线性编码的保
护。WBSM4-NC方案一轮的加密过程包含4个复合
仿射变换: 与 ,4个
密钥相关查找表,12个执行异或操作的16~8 bit查
找表,4个替换复合仿射编码 的查找表
以及3个异或操作。
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