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AES简单介绍
2022-07-01 08:16:00 【小胖子果果】
AES加解密密伪代码


其中,w表示轮秘钥;Nr表示轮数(AES128-10;AES192-12;AES256-14);AddRoundKey、SubBytes、ShiftRows和MixColumns在下面依次介绍;
SubBytes

InvSubBytes
ShiftRows

InvShiftRows

MixColumns

InvMixColumns

AddRoundKey
w指的是轮秘钥,由秘钥扩展获取,秘钥扩展伪代码如下所示:

RotWord: Word[a0,a1,a2,a3] -> Word[a1,a2,a3,a0];
Rcon[i]: ![[x^{i-1},0,0,0]](http://img.inotgo.com/imagesLocal/202207/01/202207010816051740_8.gif)
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