static void md5_transform(u32 *hash, u32 const *in)
{
u32 a, b, c, d;
a = hash[0];
b = hash[1];
c = hash[2];
d = hash[3];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
hash[0] += a;
hash[1] += b;
hash[2] += c;
hash[3] += d;
}
static void Transform(Md5* md5)
{
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
#define MD5STEP(f, w, x, y, z, data, s) \
w = rotlFixed(w + f(x, y, z) + data, s) + x
/* Copy context->state[] to working vars */
word32 a = md5->digest[0];
word32 b = md5->digest[1];
word32 c = md5->digest[2];
word32 d = md5->digest[3];
MD5STEP(F1, a, b, c, d, md5->buffer[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, md5->buffer[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, md5->buffer[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, md5->buffer[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, md5->buffer[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, md5->buffer[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, md5->buffer[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, md5->buffer[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, md5->buffer[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, md5->buffer[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, md5->buffer[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, md5->buffer[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, md5->buffer[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, md5->buffer[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, md5->buffer[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, md5->buffer[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, md5->buffer[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, md5->buffer[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, md5->buffer[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, md5->buffer[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, md5->buffer[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, md5->buffer[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, md5->buffer[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, md5->buffer[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, md5->buffer[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, md5->buffer[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, md5->buffer[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, md5->buffer[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, md5->buffer[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, md5->buffer[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, md5->buffer[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, md5->buffer[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, md5->buffer[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, md5->buffer[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, md5->buffer[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, md5->buffer[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, md5->buffer[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, md5->buffer[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, md5->buffer[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, md5->buffer[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, md5->buffer[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, md5->buffer[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, md5->buffer[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, md5->buffer[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, md5->buffer[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, md5->buffer[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, md5->buffer[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, md5->buffer[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, md5->buffer[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, md5->buffer[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, md5->buffer[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, md5->buffer[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, md5->buffer[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, md5->buffer[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, md5->buffer[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, md5->buffer[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, md5->buffer[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, md5->buffer[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, md5->buffer[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, md5->buffer[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, md5->buffer[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, md5->buffer[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, md5->buffer[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, md5->buffer[9] + 0xeb86d391, 21);
/* Add the working vars back into digest state[] */
md5->digest[0] += a;
md5->digest[1] += b;
md5->digest[2] += c;
md5->digest[3] += d;
}
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data. MD5Update blocks
* the data and converts bytes into longwords for this routine.
*/
void
MD5Transform(u_int32_t state[4], const u_int8_t block[MD5_BLOCK_LENGTH])
{
u_int32_t a, b, c, d, in[MD5_BLOCK_LENGTH / 4];
#if BYTE_ORDER == LITTLE_ENDIAN
memcpy(in, block, sizeof(in));
#else
for (a = 0; a < MD5_BLOCK_LENGTH / 4; a++) {
in[a] = (u_int32_t)(
(u_int32_t)(block[a * 4 + 0]) |
(u_int32_t)(block[a * 4 + 1]) << 8 |
(u_int32_t)(block[a * 4 + 2]) << 16 |
(u_int32_t)(block[a * 4 + 3]) << 24);
}
#endif
a = state[0];
b = state[1];
c = state[2];
d = state[3];
MD5STEP(F1, a, b, c, d, in[ 0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[ 1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[ 2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[ 3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[ 4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[ 5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[ 6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[ 7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[ 8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[ 9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[ 1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[ 6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[ 0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[ 5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[ 4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[ 9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[ 3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[ 8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[ 2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[ 7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[ 5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[ 8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[ 1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[ 4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[ 7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[ 0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[ 3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[ 6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[ 9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2 ] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[ 0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7 ] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5 ] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3 ] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1 ] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8 ] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6 ] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4 ] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2 ] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9 ] + 0xeb86d391, 21);
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
}
static void __md5_transform(u32 hash[MD5_DIGEST_WORDS],
const u32 in[MD5_BLOCK_WORDS])
{
register u32 a, b, c, d;
a = hash[0];
b = hash[1];
c = hash[2];
d = hash[3];
MD5STEP(F1, a, b, c, d, in[0], 0xD76AA478UL, 7);
MD5STEP(F1, d, a, b, c, in[1], 0xE8C7B756UL, 12);
MD5STEP(F1, c, d, a, b, in[2], 0x242070DBUL, 17);
MD5STEP(F1, b, c, d, a, in[3], 0xC1BDCEEEUL, 22);
MD5STEP(F1, a, b, c, d, in[4], 0xF57C0FAFUL, 7);
MD5STEP(F1, d, a, b, c, in[5], 0x4787C62AUL, 12);
MD5STEP(F1, c, d, a, b, in[6], 0xA8304613UL, 17);
MD5STEP(F1, b, c, d, a, in[7], 0xFD469501UL, 22);
MD5STEP(F1, a, b, c, d, in[8], 0x698098D8UL, 7);
MD5STEP(F1, d, a, b, c, in[9], 0x8B44F7AFUL, 12);
MD5STEP(F1, c, d, a, b, in[10], 0xFFFF5BB1UL, 17);
MD5STEP(F1, b, c, d, a, in[11], 0x895CD7BEUL, 22);
MD5STEP(F1, a, b, c, d, in[12], 0x6B901122UL, 7);
MD5STEP(F1, d, a, b, c, in[13], 0xFD987193UL, 12);
MD5STEP(F1, c, d, a, b, in[14], 0xA679438EUL, 17);
MD5STEP(F1, b, c, d, a, in[15], 0x49B40821UL, 22);
MD5STEP(F2, a, b, c, d, in[1], 0xF61E2562UL, 5);
MD5STEP(F2, d, a, b, c, in[6], 0xC040B340UL, 9);
MD5STEP(F2, c, d, a, b, in[11], 0x265E5A51UL, 14);
MD5STEP(F2, b, c, d, a, in[0], 0xE9B6C7AAUL, 20);
MD5STEP(F2, a, b, c, d, in[5], 0xD62F105DUL, 5);
MD5STEP(F2, d, a, b, c, in[10], 0x02441453UL, 9);
MD5STEP(F2, c, d, a, b, in[15], 0xD8A1E681UL, 14);
MD5STEP(F2, b, c, d, a, in[4], 0xE7D3FBC8UL, 20);
MD5STEP(F2, a, b, c, d, in[9], 0x21E1CDE6UL, 5);
MD5STEP(F2, d, a, b, c, in[14], 0xC33707D6UL, 9);
MD5STEP(F2, c, d, a, b, in[3], 0xF4D50D87UL, 14);
MD5STEP(F2, b, c, d, a, in[8], 0x455A14EDUL, 20);
MD5STEP(F2, a, b, c, d, in[13], 0xA9E3E905UL, 5);
MD5STEP(F2, d, a, b, c, in[2], 0xFCEFA3F8UL, 9);
MD5STEP(F2, c, d, a, b, in[7], 0x676F02D9UL, 14);
MD5STEP(F2, b, c, d, a, in[12], 0x8D2A4C8AUL, 20);
MD5STEP(F3, a, b, c, d, in[5], 0xFFFA3942UL, 4);
MD5STEP(F3, d, a, b, c, in[8], 0x8771F681UL, 11);
MD5STEP(F3, c, d, a, b, in[11], 0x6D9D6122UL, 16);
MD5STEP(F3, b, c, d, a, in[14], 0xFDE5380CUL, 23);
MD5STEP(F3, a, b, c, d, in[1], 0xA4BEEA44UL, 4);
MD5STEP(F3, d, a, b, c, in[4], 0x4BDECFA9UL, 11);
MD5STEP(F3, c, d, a, b, in[7], 0xF6BB4B60UL, 16);
MD5STEP(F3, b, c, d, a, in[10], 0xBEBFBC70UL, 23);
MD5STEP(F3, a, b, c, d, in[13], 0x289B7EC6UL, 4);
MD5STEP(F3, d, a, b, c, in[0], 0xEAA127FAUL, 11);
MD5STEP(F3, c, d, a, b, in[3], 0xD4EF3085UL, 16);
MD5STEP(F3, b, c, d, a, in[6], 0x04881D05UL, 23);
MD5STEP(F3, a, b, c, d, in[9], 0xD9D4D039UL, 4);
MD5STEP(F3, d, a, b, c, in[12], 0xE6DB99E5UL, 11);
MD5STEP(F3, c, d, a, b, in[15], 0x1FA27CF8UL, 16);
MD5STEP(F3, b, c, d, a, in[2], 0xC4AC5665UL, 23);
MD5STEP(F4, a, b, c, d, in[0], 0xF4292244UL, 6);
MD5STEP(F4, d, a, b, c, in[7], 0x432AFF97UL, 10);
MD5STEP(F4, c, d, a, b, in[14], 0xAB9423A7UL, 15);
MD5STEP(F4, b, c, d, a, in[5], 0xFC93A039UL, 21);
MD5STEP(F4, a, b, c, d, in[12], 0x655B59C3UL, 6);
MD5STEP(F4, d, a, b, c, in[3], 0x8F0CCC92UL, 10);
MD5STEP(F4, c, d, a, b, in[10], 0xFFEFF47DUL, 15);
MD5STEP(F4, b, c, d, a, in[1], 0x85845DD1UL, 21);
MD5STEP(F4, a, b, c, d, in[8], 0x6FA87E4FUL, 6);
MD5STEP(F4, d, a, b, c, in[15], 0xFE2CE6E0UL, 10);
MD5STEP(F4, c, d, a, b, in[6], 0xA3014314UL, 15);
MD5STEP(F4, b, c, d, a, in[13], 0x4E0811A1UL, 21);
MD5STEP(F4, a, b, c, d, in[4], 0xF7537E82UL, 6);
MD5STEP(F4, d, a, b, c, in[11], 0xBD3AF235UL, 10);
MD5STEP(F4, c, d, a, b, in[2], 0x2AD7D2BBUL, 15);
MD5STEP(F4, b, c, d, a, in[9], 0xEB86D391UL, 21);
hash[0] += a;
hash[1] += b;
hash[2] += c;
hash[3] += d;
}
void MD5MAC_Base::Transform(word32 *digest, const word32 *in, const word32 *key)
{
#define F1(x, y, z) ((z ^ (x & (y ^ z))) + key[0])
#define F2(x, y, z) ((y ^ (z & (x ^ y))) + key[1])
#define F3(x, y, z) ((x ^ y ^ z) + key[2])
#define F4(x, y, z) ((y ^ (x | ~z)) + key[3])
#define MD5STEP(f, w, x, y, z, data, s) \
w = rotlFixed(w + f(x, y, z) + data, s) + x
word32 a, b, c, d;
a=digest[0];
b=digest[1];
c=digest[2];
d=digest[3];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
digest[0]+=a;
digest[1]+=b;
digest[2]+=c;
digest[3]+=d;
}
void NetInterface::computeNetMD5(const NetAddress *address, U32 connectSequence, U32 digest[4])
{
digest[0] = 0x67452301L;
digest[1] = 0xefcdab89L;
digest[2] = 0x98badcfeL;
digest[3] = 0x10325476L;
U32 a, b, c, d;
a=digest[0];
b=digest[1];
c=digest[2];
d=digest[3];
U32 in[16];
in[0] = address->type;
in[1] = (U32(address->netNum[0]) << 24) |
(U32(address->netNum[1]) << 16) |
(U32(address->netNum[2]) << 8) |
(U32(address->netNum[3]));
in[2] = address->port;
in[3] = connectSequence;
for(U32 i = 0; i < 12; i++)
in[i + 4] = mRandomHashData[i];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
digest[0]+=a;
digest[1]+=b;
digest[2]+=c;
digest[3]+=d;
}
/*
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data. MD5Update blocks
* the data and converts bytes into longwords for this routine.
*
* original comment left in; this used to be called MD5Transform and took
* two arguments; I've internalized those arguments, creating the character
* array "localkey," which should contain 8 bytes of data. The function also
* originally returned nothing; now it returns an unsigned long that is the
* random number. It appears to be reallyrandom, so... -Kev
*
* I don't really know what this does. I tried to figure it out and got
* a headache. If you know what's good for you, you'll leave this stuff
* for the smart people and do something else. -record
*/
unsigned int ircrandom(void)
{
unsigned int a, b, c, d;
unsigned char in[16];
struct timeval tv;
gettimeofday(&tv, 0);
memcpy((void *)in, (void *)localkey, 8);
memcpy((void *)(in + 8), (void *)localkey, 8);
memxor((void *)(in + 8), (void *)&tv.tv_sec, 4);
memxor((void *)(in + 12), (void *)&tv.tv_usec, 4);
a = 0x67452301;
b = 0xefcdab89;
c = 0x98badcfe;
d = 0x10325476;
MD5STEP(F1, a, b, c, d, (int)in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, (int)in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, (int)in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, (int)in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, (int)in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, (int)in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, (int)in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, (int)in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, (int)in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, (int)in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, (int)in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, (int)in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, (int)in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, (int)in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, (int)in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, (int)in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, (int)in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, (int)in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, (int)in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, (int)in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, (int)in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, (int)in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, (int)in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, (int)in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, (int)in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, (int)in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, (int)in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, (int)in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, (int)in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, (int)in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, (int)in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, (int)in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, (int)in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, (int)in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, (int)in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, (int)in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, (int)in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, (int)in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, (int)in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, (int)in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, (int)in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, (int)in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, (int)in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, (int)in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, (int)in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, (int)in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, (int)in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, (int)in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, (int)in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, (int)in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, (int)in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, (int)in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, (int)in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, (int)in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, (int)in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, (int)in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, (int)in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, (int)in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, (int)in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, (int)in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, (int)in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, (int)in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, (int)in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, (int)in[9] + 0xeb86d391, 21);
/* This feeds part of the output of the random number generator into the
* seed to further obscure any patterns
*/
memxor((void *)localkey, (void *)&a, 4);
memxor((void *)(localkey + 4), (void *)&b, 4);
/*
* We have 4 unsigned longs generated by the above sequence; this scrambles
* them together so that if there is any pattern, it will be obscured.
*
* a and b are now part of the state of the random number generator;
* returning them is a security hazard.
*/
return (c ^ d);
}
