?? aes.cpp
字號(hào):
#include "stdafx.h"#include "AES.h"void AES_ecb_encrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key, const int enc) { assert(in && out && key); assert((AES_ENCRYPT == enc)||(AES_DECRYPT == enc)); if (AES_ENCRYPT == enc) AES_encrypt(in, out, key); else AES_decrypt(in, out, key);}int AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key) { u32 *rk; int i = 0; u32 temp; if (!userKey || !key) return -1; if (bits != 128 && bits != 192 && bits != 256) return -2; rk = key->rd_key; if (bits==128) key->rounds = 10; else if (bits==192) key->rounds = 12; else key->rounds = 14; rk[0] = GETU32(userKey ); rk[1] = GETU32(userKey + 4); rk[2] = GETU32(userKey + 8); rk[3] = GETU32(userKey + 12); if (bits == 128) { for (;;) { temp = rk[3]; rk[4] = rk[0] ^ (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ (Te4[(temp ) & 0xff] & 0x0000ff00) ^ (Te4[(temp >> 24) ] & 0x000000ff) ^ rcon[i]; rk[5] = rk[1] ^ rk[4]; rk[6] = rk[2] ^ rk[5]; rk[7] = rk[3] ^ rk[6]; if (++i == 10) { return 0; } rk += 4; } } rk[4] = GETU32(userKey + 16); rk[5] = GETU32(userKey + 20); if (bits == 192) { for (;;) { temp = rk[ 5]; rk[ 6] = rk[ 0] ^ (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ (Te4[(temp ) & 0xff] & 0x0000ff00) ^ (Te4[(temp >> 24) ] & 0x000000ff) ^ rcon[i]; rk[ 7] = rk[ 1] ^ rk[ 6]; rk[ 8] = rk[ 2] ^ rk[ 7]; rk[ 9] = rk[ 3] ^ rk[ 8]; if (++i == 8) { return 0; } rk[10] = rk[ 4] ^ rk[ 9]; rk[11] = rk[ 5] ^ rk[10]; rk += 6; } } rk[6] = GETU32(userKey + 24); rk[7] = GETU32(userKey + 28); if (bits == 256) { for (;;) { temp = rk[ 7]; rk[ 8] = rk[ 0] ^ (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ (Te4[(temp ) & 0xff] & 0x0000ff00) ^ (Te4[(temp >> 24) ] & 0x000000ff) ^ rcon[i]; rk[ 9] = rk[ 1] ^ rk[ 8]; rk[10] = rk[ 2] ^ rk[ 9]; rk[11] = rk[ 3] ^ rk[10]; if (++i == 7) { return 0; } temp = rk[11]; rk[12] = rk[ 4] ^ (Te4[(temp >> 24) ] & 0xff000000) ^ (Te4[(temp >> 16) & 0xff] & 0x00ff0000) ^ (Te4[(temp >> 8) & 0xff] & 0x0000ff00) ^ (Te4[(temp ) & 0xff] & 0x000000ff); rk[13] = rk[ 5] ^ rk[12]; rk[14] = rk[ 6] ^ rk[13]; rk[15] = rk[ 7] ^ rk[14]; rk += 8; } } return 0;}int AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key) { u32 *rk; int i, j, status; u32 temp; /* first, start with an encryption schedule */ status = AES_set_encrypt_key(userKey, bits, key); if (status < 0) return status; rk = key->rd_key; /* invert the order of the round keys: */ for (i = 0, j = 4*(key->rounds); i < j; i += 4, j -= 4) { temp = rk[i ]; rk[i ] = rk[j ]; rk[j ] = temp; temp = rk[i + 1]; rk[i + 1] = rk[j + 1]; rk[j + 1] = temp; temp = rk[i + 2]; rk[i + 2] = rk[j + 2]; rk[j + 2] = temp; temp = rk[i + 3]; rk[i + 3] = rk[j + 3]; rk[j + 3] = temp; } /* apply the inverse MixColumn transform to all round keys but the first and the last: */ for (i = 1; i < (key->rounds); i++) { rk += 4; rk[0] = Td0[Te4[(rk[0] >> 24) ] & 0xff] ^ Td1[Te4[(rk[0] >> 16) & 0xff] & 0xff] ^ Td2[Te4[(rk[0] >> 8) & 0xff] & 0xff] ^ Td3[Te4[(rk[0] ) & 0xff] & 0xff]; rk[1] = Td0[Te4[(rk[1] >> 24) ] & 0xff] ^ Td1[Te4[(rk[1] >> 16) & 0xff] & 0xff] ^ Td2[Te4[(rk[1] >> 8) & 0xff] & 0xff] ^ Td3[Te4[(rk[1] ) & 0xff] & 0xff]; rk[2] = Td0[Te4[(rk[2] >> 24) ] & 0xff] ^ Td1[Te4[(rk[2] >> 16) & 0xff] & 0xff] ^ Td2[Te4[(rk[2] >> 8) & 0xff] & 0xff] ^ Td3[Te4[(rk[2] ) & 0xff] & 0xff]; rk[3] = Td0[Te4[(rk[3] >> 24) ] & 0xff] ^ Td1[Te4[(rk[3] >> 16) & 0xff] & 0xff] ^ Td2[Te4[(rk[3] >> 8) & 0xff] & 0xff] ^ Td3[Te4[(rk[3] ) & 0xff] & 0xff]; } return 0;}void AES_encrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key) { const u32 *rk; u32 s0, s1, s2, s3, t0, t1, t2, t3;#ifndef FULL_UNROLL int r;#endif /* ?FULL_UNROLL */ assert(in && out && key); rk = key->rd_key; /* * map byte array block to cipher state * and add initial round key: */ s0 = GETU32(in ) ^ rk[0]; s1 = GETU32(in + 4) ^ rk[1]; s2 = GETU32(in + 8) ^ rk[2]; s3 = GETU32(in + 12) ^ rk[3];#ifdef FULL_UNROLL /* round 1: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[ 4]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[ 5]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[ 6]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[ 7]; /* round 2: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[ 8]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[ 9]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[10]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[11]; /* round 3: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[12]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[13]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[14]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[15]; /* round 4: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[16]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[17]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[18]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[19]; /* round 5: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[20]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[21]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[22]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[23]; /* round 6: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[24]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[25]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[26]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[27]; /* round 7: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[28]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[29]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[30]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[31]; /* round 8: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[32]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[33]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[34]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[35]; /* round 9: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[36]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[37]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[38]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[39]; if (key->rounds > 10) { /* round 10: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[40]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[41]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[42]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[43]; /* round 11: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[44]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[45]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[46]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[47]; if (key->rounds > 12) { /* round 12: */ s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[48]; s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[49]; s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[50]; s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[51]; /* round 13: */ t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[52]; t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[53]; t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[54]; t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[55]; } } rk += key->rounds << 2;#else /* !FULL_UNROLL */ /* * Nr - 1 full rounds: */ r = key->rounds >> 1; for (;;) { t0 = Te0[(s0 >> 24) ] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[(s3 ) & 0xff] ^ rk[4]; t1 = Te0[(s1 >> 24) ] ^ Te1[(s2 >> 16) & 0xff] ^?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -