📄 aes.cpp
字号:
0x04984af1U, 0xecdaf741U, 0xcd500e7fU, 0x91f62f17U,
0x4dd68d76U, 0xefb04d43U, 0xaa4d54ccU, 0x9604dfe4U,
0xd1b5e39eU, 0x6a881b4cU, 0x2c1fb8c1U, 0x65517f46U,
0x5eea049dU, 0x8c355d01U, 0x877473faU, 0x0b412efbU,
0x671d5ab3U, 0xdbd25292U, 0x105633e9U, 0xd647136dU,
0xd7618c9aU, 0xa10c7a37U, 0xf8148e59U, 0x133c89ebU,
0xa927eeceU, 0x61c935b7U, 0x1ce5ede1U, 0x47b13c7aU,
0xd2df599cU, 0xf2733f55U, 0x14ce7918U, 0xc737bf73U,
0xf7cdea53U, 0xfdaa5b5fU, 0x3d6f14dfU, 0x44db8678U,
0xaff381caU, 0x68c43eb9U, 0x24342c38U, 0xa3405fc2U,
0x1dc37216U, 0xe2250cbcU, 0x3c498b28U, 0x0d9541ffU,
0xa8017139U, 0x0cb3de08U, 0xb4e49cd8U, 0x56c19064U,
0xcb84617bU, 0x32b670d5U, 0x6c5c7448U, 0xb85742d0U,
};
static const u32 Td4[256] =
{
0x52525252U, 0x09090909U, 0x6a6a6a6aU, 0xd5d5d5d5U,
0x30303030U, 0x36363636U, 0xa5a5a5a5U, 0x38383838U,
0xbfbfbfbfU, 0x40404040U, 0xa3a3a3a3U, 0x9e9e9e9eU,
0x81818181U, 0xf3f3f3f3U, 0xd7d7d7d7U, 0xfbfbfbfbU,
0x7c7c7c7cU, 0xe3e3e3e3U, 0x39393939U, 0x82828282U,
0x9b9b9b9bU, 0x2f2f2f2fU, 0xffffffffU, 0x87878787U,
0x34343434U, 0x8e8e8e8eU, 0x43434343U, 0x44444444U,
0xc4c4c4c4U, 0xdedededeU, 0xe9e9e9e9U, 0xcbcbcbcbU,
0x54545454U, 0x7b7b7b7bU, 0x94949494U, 0x32323232U,
0xa6a6a6a6U, 0xc2c2c2c2U, 0x23232323U, 0x3d3d3d3dU,
0xeeeeeeeeU, 0x4c4c4c4cU, 0x95959595U, 0x0b0b0b0bU,
0x42424242U, 0xfafafafaU, 0xc3c3c3c3U, 0x4e4e4e4eU,
0x08080808U, 0x2e2e2e2eU, 0xa1a1a1a1U, 0x66666666U,
0x28282828U, 0xd9d9d9d9U, 0x24242424U, 0xb2b2b2b2U,
0x76767676U, 0x5b5b5b5bU, 0xa2a2a2a2U, 0x49494949U,
0x6d6d6d6dU, 0x8b8b8b8bU, 0xd1d1d1d1U, 0x25252525U,
0x72727272U, 0xf8f8f8f8U, 0xf6f6f6f6U, 0x64646464U,
0x86868686U, 0x68686868U, 0x98989898U, 0x16161616U,
0xd4d4d4d4U, 0xa4a4a4a4U, 0x5c5c5c5cU, 0xccccccccU,
0x5d5d5d5dU, 0x65656565U, 0xb6b6b6b6U, 0x92929292U,
0x6c6c6c6cU, 0x70707070U, 0x48484848U, 0x50505050U,
0xfdfdfdfdU, 0xededededU, 0xb9b9b9b9U, 0xdadadadaU,
0x5e5e5e5eU, 0x15151515U, 0x46464646U, 0x57575757U,
0xa7a7a7a7U, 0x8d8d8d8dU, 0x9d9d9d9dU, 0x84848484U,
0x90909090U, 0xd8d8d8d8U, 0xababababU, 0x00000000U,
0x8c8c8c8cU, 0xbcbcbcbcU, 0xd3d3d3d3U, 0x0a0a0a0aU,
0xf7f7f7f7U, 0xe4e4e4e4U, 0x58585858U, 0x05050505U,
0xb8b8b8b8U, 0xb3b3b3b3U, 0x45454545U, 0x06060606U,
0xd0d0d0d0U, 0x2c2c2c2cU, 0x1e1e1e1eU, 0x8f8f8f8fU,
0xcacacacaU, 0x3f3f3f3fU, 0x0f0f0f0fU, 0x02020202U,
0xc1c1c1c1U, 0xafafafafU, 0xbdbdbdbdU, 0x03030303U,
0x01010101U, 0x13131313U, 0x8a8a8a8aU, 0x6b6b6b6bU,
0x3a3a3a3aU, 0x91919191U, 0x11111111U, 0x41414141U,
0x4f4f4f4fU, 0x67676767U, 0xdcdcdcdcU, 0xeaeaeaeaU,
0x97979797U, 0xf2f2f2f2U, 0xcfcfcfcfU, 0xcecececeU,
0xf0f0f0f0U, 0xb4b4b4b4U, 0xe6e6e6e6U, 0x73737373U,
0x96969696U, 0xacacacacU, 0x74747474U, 0x22222222U,
0xe7e7e7e7U, 0xadadadadU, 0x35353535U, 0x85858585U,
0xe2e2e2e2U, 0xf9f9f9f9U, 0x37373737U, 0xe8e8e8e8U,
0x1c1c1c1cU, 0x75757575U, 0xdfdfdfdfU, 0x6e6e6e6eU,
0x47474747U, 0xf1f1f1f1U, 0x1a1a1a1aU, 0x71717171U,
0x1d1d1d1dU, 0x29292929U, 0xc5c5c5c5U, 0x89898989U,
0x6f6f6f6fU, 0xb7b7b7b7U, 0x62626262U, 0x0e0e0e0eU,
0xaaaaaaaaU, 0x18181818U, 0xbebebebeU, 0x1b1b1b1bU,
0xfcfcfcfcU, 0x56565656U, 0x3e3e3e3eU, 0x4b4b4b4bU,
0xc6c6c6c6U, 0xd2d2d2d2U, 0x79797979U, 0x20202020U,
0x9a9a9a9aU, 0xdbdbdbdbU, 0xc0c0c0c0U, 0xfefefefeU,
0x78787878U, 0xcdcdcdcdU, 0x5a5a5a5aU, 0xf4f4f4f4U,
0x1f1f1f1fU, 0xddddddddU, 0xa8a8a8a8U, 0x33333333U,
0x88888888U, 0x07070707U, 0xc7c7c7c7U, 0x31313131U,
0xb1b1b1b1U, 0x12121212U, 0x10101010U, 0x59595959U,
0x27272727U, 0x80808080U, 0xececececU, 0x5f5f5f5fU,
0x60606060U, 0x51515151U, 0x7f7f7f7fU, 0xa9a9a9a9U,
0x19191919U, 0xb5b5b5b5U, 0x4a4a4a4aU, 0x0d0d0d0dU,
0x2d2d2d2dU, 0xe5e5e5e5U, 0x7a7a7a7aU, 0x9f9f9f9fU,
0x93939393U, 0xc9c9c9c9U, 0x9c9c9c9cU, 0xefefefefU,
0xa0a0a0a0U, 0xe0e0e0e0U, 0x3b3b3b3bU, 0x4d4d4d4dU,
0xaeaeaeaeU, 0x2a2a2a2aU, 0xf5f5f5f5U, 0xb0b0b0b0U,
0xc8c8c8c8U, 0xebebebebU, 0xbbbbbbbbU, 0x3c3c3c3cU,
0x83838383U, 0x53535353U, 0x99999999U, 0x61616161U,
0x17171717U, 0x2b2b2b2bU, 0x04040404U, 0x7e7e7e7eU,
0xbabababaU, 0x77777777U, 0xd6d6d6d6U, 0x26262626U,
0xe1e1e1e1U, 0x69696969U, 0x14141414U, 0x63636363U,
0x55555555U, 0x21212121U, 0x0c0c0c0cU, 0x7d7d7d7dU,
};
static const u32 rcon[] =
{
0x01000000, 0x02000000, 0x04000000, 0x08000000,
0x10000000, 0x20000000, 0x40000000, 0x80000000,
0x1B000000, 0x36000000,
/* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
};
#define GETU32(plaintext) (((ULONG)(plaintext)[0] << 24) ^ \
((ULONG)(plaintext)[1] << 16) ^ \
((ULONG)(plaintext)[2] << 8) ^ \
((ULONG)(plaintext)[3]))
#define PUTU32(ciphertext, st) { (ciphertext)[0] = (BYTE)((st) >> 24); \
(ciphertext)[1] = (BYTE)((st) >> 16); \
(ciphertext)[2] = (BYTE)((st) >> 8); \
(ciphertext)[3] = (BYTE)(st); }
ULONG Rijndael::calculateLength(ULONG len) {
len = len + 16 - (len % 16);
return (len);
}
/**
* Expand the cipher key into the encryption key schedule.
*
* @return the number of rounds for the given cipher key size.
*/
int Rijndael::rijndaelSetupEncrypt(ULONG *rk, BYTE *key, int keybits)
{
int i = 0;
u32 temp;
rk[0] = GETU32(key );
rk[1] = GETU32(key + 4);
rk[2] = GETU32(key + 8);
rk[3] = GETU32(key + 12);
if (keybits == 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 10;
rk += 4;
}
}
rk[4] = GETU32(key + 16);
rk[5] = GETU32(key + 20);
if (keybits == 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 12;
rk[10] = rk[ 4] ^ rk[ 9];
rk[11] = rk[ 5] ^ rk[10];
rk += 6;
}
}
rk[6] = GETU32(key + 24);
rk[7] = GETU32(key + 28);
if (keybits == 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 14;
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;
}
/**
* Expand the cipher key into the decryption key schedule.
*
* @return the number of rounds for the given cipher key size.
*/
int Rijndael::rijndaelSetupDecrypt(ULONG *rk, BYTE *key, int keybits)
{
int nrounds, i, j;
u32 temp;
/* expand the cipher key: */
nrounds = rijndaelSetupEncrypt(rk, key, keybits);
/* invert the order of the round keys: */
for (i = 0, j = 4*nrounds; 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 < nrounds; 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 nrounds;
}
void Rijndael::rijndaelEncrypt(ULONG *rk, int nrounds, BYTE plaintext[16], BYTE ciphertext[16])
{
u32 s0, s1, s2, s3, t0, t1, t2, t3;
#ifndef FULL_UNROLL
int r;
#endif /* ?FULL_UNROLL */
/*
* map byte array block to cipher state
* and add initial round key:
*/
s0 = GETU32(plaintext ) ^ rk[0];
s1 = GETU32(plaintext + 4) ^ rk[1];
s2 = GETU32(plaintext + 8) ^ rk[2];
s3 = GETU32(plaintext + 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];
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