| Rasmus Villemoes | 9a29ae8 | 2015-02-12 15:02:51 -0800 | [diff] [blame] | 1 | #include <linux/compiler.h> |
| Paul Gortmaker | 8bc3bcc | 2011-11-16 21:29:17 -0500 | [diff] [blame] | 2 | #include <linux/export.h> |
| David S. Miller | bc0b96b | 2011-08-03 19:45:10 -0700 | [diff] [blame] | 3 | #include <linux/cryptohash.h> |
| 4 | |
| 5 | #define F1(x, y, z) (z ^ (x & (y ^ z))) |
| 6 | #define F2(x, y, z) F1(z, x, y) |
| 7 | #define F3(x, y, z) (x ^ y ^ z) |
| 8 | #define F4(x, y, z) (y ^ (x | ~z)) |
| 9 | |
| 10 | #define MD5STEP(f, w, x, y, z, in, s) \ |
| 11 | (w += f(x, y, z) + in, w = (w<<s | w>>(32-s)) + x) |
| 12 | |
| 13 | void md5_transform(__u32 *hash, __u32 const *in) |
| 14 | { |
| 15 | u32 a, b, c, d; |
| 16 | |
| 17 | a = hash[0]; |
| 18 | b = hash[1]; |
| 19 | c = hash[2]; |
| 20 | d = hash[3]; |
| 21 | |
| 22 | MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); |
| 23 | MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); |
| 24 | MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); |
| 25 | MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); |
| 26 | MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); |
| 27 | MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); |
| 28 | MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); |
| 29 | MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); |
| 30 | MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); |
| 31 | MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); |
| 32 | MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); |
| 33 | MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); |
| 34 | MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); |
| 35 | MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); |
| 36 | MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); |
| 37 | MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); |
| 38 | |
| 39 | MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); |
| 40 | MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); |
| 41 | MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); |
| 42 | MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); |
| 43 | MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); |
| 44 | MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); |
| 45 | MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); |
| 46 | MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); |
| 47 | MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); |
| 48 | MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); |
| 49 | MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); |
| 50 | MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); |
| 51 | MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); |
| 52 | MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); |
| 53 | MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); |
| 54 | MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); |
| 55 | |
| 56 | MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); |
| 57 | MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); |
| 58 | MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); |
| 59 | MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); |
| 60 | MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); |
| 61 | MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); |
| 62 | MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); |
| 63 | MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); |
| 64 | MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); |
| 65 | MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); |
| 66 | MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); |
| 67 | MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); |
| 68 | MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); |
| 69 | MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); |
| 70 | MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); |
| 71 | MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); |
| 72 | |
| 73 | MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); |
| 74 | MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); |
| 75 | MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); |
| 76 | MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); |
| 77 | MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); |
| 78 | MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); |
| 79 | MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); |
| 80 | MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); |
| 81 | MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); |
| 82 | MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); |
| 83 | MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); |
| 84 | MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); |
| 85 | MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); |
| 86 | MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); |
| 87 | MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); |
| 88 | MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); |
| 89 | |
| 90 | hash[0] += a; |
| 91 | hash[1] += b; |
| 92 | hash[2] += c; |
| 93 | hash[3] += d; |
| 94 | } |
| 95 | EXPORT_SYMBOL(md5_transform); |