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Commit | Line | Data |
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bc0b96b5 | 1 | #include <linux/kernel.h> |
8bc3bcc9 | 2 | #include <linux/export.h> |
bc0b96b5 DM |
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); |