?? sshaes.c
字號:
0x48685870, 0x45fd198f, 0xde6c8794, 0x7bf8b752,
0x73d323ab, 0x4b02e272, 0x1f8f57e3, 0x55ab2a66,
0xeb2807b2, 0xb5c2032f, 0xc57b9a86, 0x3708a5d3,
0x2887f230, 0xbfa5b223, 0x036aba02, 0x16825ced,
0xcf1c2b8a, 0x79b492a7, 0x07f2f0f3, 0x69e2a14e,
0xdaf4cd65, 0x05bed506, 0x34621fd1, 0xa6fe8ac4,
0x2e539d34, 0xf355a0a2, 0x8ae13205, 0xf6eb75a4,
0x83ec390b, 0x60efaa40, 0x719f065e, 0x6e1051bd,
0x218af93e, 0xdd063d96, 0x3e05aedd, 0xe6bd464d,
0x548db591, 0xc45d0571, 0x06d46f04, 0x5015ff60,
0x98fb2419, 0xbde997d6, 0x4043cc89, 0xd99e7767,
0xe842bdb0, 0x898b8807, 0x195b38e7, 0xc8eedb79,
0x7c0a47a1, 0x420fe97c, 0x841ec9f8, 0x00000000,
0x80868309, 0x2bed4832, 0x1170ac1e, 0x5a724e6c,
0x0efffbfd, 0x8538560f, 0xaed51e3d, 0x2d392736,
0x0fd9640a, 0x5ca62168, 0x5b54d19b, 0x362e3a24,
0x0a67b10c, 0x57e70f93, 0xee96d2b4, 0x9b919e1b,
0xc0c54f80, 0xdc20a261, 0x774b695a, 0x121a161c,
0x93ba0ae2, 0xa02ae5c0, 0x22e0433c, 0x1b171d12,
0x090d0b0e, 0x8bc7adf2, 0xb6a8b92d, 0x1ea9c814,
0xf1198557, 0x75074caf, 0x99ddbbee, 0x7f60fda3,
0x01269ff7, 0x72f5bc5c, 0x663bc544, 0xfb7e345b,
0x4329768b, 0x23c6dccb, 0xedfc68b6, 0xe4f163b8,
0x31dccad7, 0x63851042, 0x97224013, 0xc6112084,
0x4a247d85, 0xbb3df8d2, 0xf93211ae, 0x29a16dc7,
0x9e2f4b1d, 0xb230f3dc, 0x8652ec0d, 0xc1e3d077,
0xb3166c2b, 0x70b999a9, 0x9448fa11, 0xe9642247,
0xfc8cc4a8, 0xf03f1aa0, 0x7d2cd856, 0x3390ef22,
0x494ec787, 0x38d1c1d9, 0xcaa2fe8c, 0xd40b3698,
0xf581cfa6, 0x7ade28a5, 0xb78e26da, 0xadbfa43f,
0x3a9de42c, 0x78920d50, 0x5fcc9b6a, 0x7e466254,
0x8d13c2f6, 0xd8b8e890, 0x39f75e2e, 0xc3aff582,
0x5d80be9f, 0xd0937c69, 0xd52da96f, 0x2512b3cf,
0xac993bc8, 0x187da710, 0x9c636ee8, 0x3bbb7bdb,
0x267809cd, 0x5918f46e, 0x9ab701ec, 0x4f9aa883,
0x956e65e6, 0xffe67eaa, 0xbccf0821, 0x15e8e6ef,
0xe79bd9ba, 0x6f36ce4a, 0x9f09d4ea, 0xb07cd629,
0xa4b2af31, 0x3f23312a, 0xa59430c6, 0xa266c035,
0x4ebc3774, 0x82caa6fc, 0x90d0b0e0, 0xa7d81533,
0x04984af1, 0xecdaf741, 0xcd500e7f, 0x91f62f17,
0x4dd68d76, 0xefb04d43, 0xaa4d54cc, 0x9604dfe4,
0xd1b5e39e, 0x6a881b4c, 0x2c1fb8c1, 0x65517f46,
0x5eea049d, 0x8c355d01, 0x877473fa, 0x0b412efb,
0x671d5ab3, 0xdbd25292, 0x105633e9, 0xd647136d,
0xd7618c9a, 0xa10c7a37, 0xf8148e59, 0x133c89eb,
0xa927eece, 0x61c935b7, 0x1ce5ede1, 0x47b13c7a,
0xd2df599c, 0xf2733f55, 0x14ce7918, 0xc737bf73,
0xf7cdea53, 0xfdaa5b5f, 0x3d6f14df, 0x44db8678,
0xaff381ca, 0x68c43eb9, 0x24342c38, 0xa3405fc2,
0x1dc37216, 0xe2250cbc, 0x3c498b28, 0x0d9541ff,
0xa8017139, 0x0cb3de08, 0xb4e49cd8, 0x56c19064,
0xcb84617b, 0x32b670d5, 0x6c5c7448, 0xb85742d0,
};
/*
* Common macros in both the encryption and decryption routines.
*/
#define ADD_ROUND_KEY_4 (block[0]^=*keysched++, block[1]^=*keysched++, \
block[2]^=*keysched++, block[3]^=*keysched++)
#define ADD_ROUND_KEY_6 (block[0]^=*keysched++, block[1]^=*keysched++, \
block[2]^=*keysched++, block[3]^=*keysched++, \
block[4]^=*keysched++, block[5]^=*keysched++)
#define ADD_ROUND_KEY_8 (block[0]^=*keysched++, block[1]^=*keysched++, \
block[2]^=*keysched++, block[3]^=*keysched++, \
block[4]^=*keysched++, block[5]^=*keysched++, \
block[6]^=*keysched++, block[7]^=*keysched++)
#define MOVEWORD(i) ( block[i] = newstate[i] )
/*
* Macros for the encryption routine. There are three encryption
* cores, for Nb=4,6,8.
*/
#define MAKEWORD(i) ( newstate[i] = (E0[(block[i] >> 24) & 0xFF] ^ \
E1[(block[(i+C1)%Nb] >> 16) & 0xFF] ^ \
E2[(block[(i+C2)%Nb] >> 8) & 0xFF] ^ \
E3[block[(i+C3)%Nb] & 0xFF]) )
#define LASTWORD(i) ( newstate[i] = (Sbox[(block[i] >> 24) & 0xFF] << 24) | \
(Sbox[(block[(i+C1)%Nb] >> 16) & 0xFF] << 16) | \
(Sbox[(block[(i+C2)%Nb] >> 8) & 0xFF] << 8) | \
(Sbox[(block[(i+C3)%Nb] ) & 0xFF] ) )
/*
* Core encrypt routines, expecting word32 inputs read big-endian
* from the byte-oriented input stream.
*/
static void aes_encrypt_nb_4(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 1, C2 = 2, C3 = 3, Nb = 4;
word32 *keysched = ctx->keysched;
word32 newstate[4];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_4;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
}
ADD_ROUND_KEY_4;
LASTWORD(0);
LASTWORD(1);
LASTWORD(2);
LASTWORD(3);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
ADD_ROUND_KEY_4;
}
static void aes_encrypt_nb_6(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 1, C2 = 2, C3 = 3, Nb = 6;
word32 *keysched = ctx->keysched;
word32 newstate[6];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_6;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MAKEWORD(4);
MAKEWORD(5);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
}
ADD_ROUND_KEY_6;
LASTWORD(0);
LASTWORD(1);
LASTWORD(2);
LASTWORD(3);
LASTWORD(4);
LASTWORD(5);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
ADD_ROUND_KEY_6;
}
static void aes_encrypt_nb_8(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 1, C2 = 3, C3 = 4, Nb = 8;
word32 *keysched = ctx->keysched;
word32 newstate[8];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_8;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MAKEWORD(4);
MAKEWORD(5);
MAKEWORD(6);
MAKEWORD(7);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
MOVEWORD(6);
MOVEWORD(7);
}
ADD_ROUND_KEY_8;
LASTWORD(0);
LASTWORD(1);
LASTWORD(2);
LASTWORD(3);
LASTWORD(4);
LASTWORD(5);
LASTWORD(6);
LASTWORD(7);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
MOVEWORD(6);
MOVEWORD(7);
ADD_ROUND_KEY_8;
}
#undef MAKEWORD
#undef LASTWORD
/*
* Macros for the decryption routine. There are three decryption
* cores, for Nb=4,6,8.
*/
#define MAKEWORD(i) ( newstate[i] = (D0[(block[i] >> 24) & 0xFF] ^ \
D1[(block[(i+C1)%Nb] >> 16) & 0xFF] ^ \
D2[(block[(i+C2)%Nb] >> 8) & 0xFF] ^ \
D3[block[(i+C3)%Nb] & 0xFF]) )
#define LASTWORD(i) (newstate[i] = (Sboxinv[(block[i] >> 24) & 0xFF] << 24) | \
(Sboxinv[(block[(i+C1)%Nb] >> 16) & 0xFF] << 16) | \
(Sboxinv[(block[(i+C2)%Nb] >> 8) & 0xFF] << 8) | \
(Sboxinv[(block[(i+C3)%Nb] ) & 0xFF] ) )
/*
* Core decrypt routines, expecting word32 inputs read big-endian
* from the byte-oriented input stream.
*/
static void aes_decrypt_nb_4(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 4 - 1, C2 = 4 - 2, C3 = 4 - 3, Nb = 4;
word32 *keysched = ctx->invkeysched;
word32 newstate[4];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_4;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
}
ADD_ROUND_KEY_4;
LASTWORD(0);
LASTWORD(1);
LASTWORD(2);
LASTWORD(3);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
ADD_ROUND_KEY_4;
}
static void aes_decrypt_nb_6(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 6 - 1, C2 = 6 - 2, C3 = 6 - 3, Nb = 6;
word32 *keysched = ctx->invkeysched;
word32 newstate[6];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_6;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MAKEWORD(4);
MAKEWORD(5);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
}
ADD_ROUND_KEY_6;
LASTWORD(0);
LASTWORD(1);
LASTWORD(2);
LASTWORD(3);
LASTWORD(4);
LASTWORD(5);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
ADD_ROUND_KEY_6;
}
static void aes_decrypt_nb_8(AESContext * ctx, word32 * block)
{
int i;
static const int C1 = 8 - 1, C2 = 8 - 3, C3 = 8 - 4, Nb = 8;
word32 *keysched = ctx->invkeysched;
word32 newstate[8];
for (i = 0; i < ctx->Nr - 1; i++) {
ADD_ROUND_KEY_8;
MAKEWORD(0);
MAKEWORD(1);
MAKEWORD(2);
MAKEWORD(3);
MAKEWORD(4);
MAKEWORD(5);
MAKEWORD(6);
MAKEWORD(7);
MOVEWORD(0);
MOVEWORD(1);
MOVEWORD(2);
MOVEWORD(3);
MOVEWORD(4);
MOVEWORD(5);
MOVEWORD(6);
MOVEWORD(7);
}
ADD_ROUND_KEY_8;
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