1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
3 | * |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at |
7 | * https://www.openssl.org/source/license.html |
8 | */ |
9 | |
10 | #include <stdio.h> |
11 | #include "md5_local.h" |
12 | #include <openssl/opensslv.h> |
13 | |
14 | /* |
15 | * Implemented from RFC1321 The MD5 Message-Digest Algorithm |
16 | */ |
17 | |
18 | #define INIT_DATA_A (unsigned long)0x67452301L |
19 | #define INIT_DATA_B (unsigned long)0xefcdab89L |
20 | #define INIT_DATA_C (unsigned long)0x98badcfeL |
21 | #define INIT_DATA_D (unsigned long)0x10325476L |
22 | |
23 | int MD5_Init(MD5_CTX *c) |
24 | { |
25 | memset(c, 0, sizeof(*c)); |
26 | c->A = INIT_DATA_A; |
27 | c->B = INIT_DATA_B; |
28 | c->C = INIT_DATA_C; |
29 | c->D = INIT_DATA_D; |
30 | return 1; |
31 | } |
32 | |
33 | #ifndef md5_block_data_order |
34 | # ifdef X |
35 | # undef X |
36 | # endif |
37 | void md5_block_data_order(MD5_CTX *c, const void *data_, size_t num) |
38 | { |
39 | const unsigned char *data = data_; |
40 | register unsigned MD32_REG_T A, B, C, D, l; |
41 | # ifndef MD32_XARRAY |
42 | /* See comment in crypto/sha/sha_local.h for details. */ |
43 | unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7, |
44 | XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15; |
45 | # define X(i) XX##i |
46 | # else |
47 | MD5_LONG XX[MD5_LBLOCK]; |
48 | # define X(i) XX[i] |
49 | # endif |
50 | |
51 | A = c->A; |
52 | B = c->B; |
53 | C = c->C; |
54 | D = c->D; |
55 | |
56 | for (; num--;) { |
57 | (void)HOST_c2l(data, l); |
58 | X(0) = l; |
59 | (void)HOST_c2l(data, l); |
60 | X(1) = l; |
61 | /* Round 0 */ |
62 | R0(A, B, C, D, X(0), 7, 0xd76aa478L); |
63 | (void)HOST_c2l(data, l); |
64 | X(2) = l; |
65 | R0(D, A, B, C, X(1), 12, 0xe8c7b756L); |
66 | (void)HOST_c2l(data, l); |
67 | X(3) = l; |
68 | R0(C, D, A, B, X(2), 17, 0x242070dbL); |
69 | (void)HOST_c2l(data, l); |
70 | X(4) = l; |
71 | R0(B, C, D, A, X(3), 22, 0xc1bdceeeL); |
72 | (void)HOST_c2l(data, l); |
73 | X(5) = l; |
74 | R0(A, B, C, D, X(4), 7, 0xf57c0fafL); |
75 | (void)HOST_c2l(data, l); |
76 | X(6) = l; |
77 | R0(D, A, B, C, X(5), 12, 0x4787c62aL); |
78 | (void)HOST_c2l(data, l); |
79 | X(7) = l; |
80 | R0(C, D, A, B, X(6), 17, 0xa8304613L); |
81 | (void)HOST_c2l(data, l); |
82 | X(8) = l; |
83 | R0(B, C, D, A, X(7), 22, 0xfd469501L); |
84 | (void)HOST_c2l(data, l); |
85 | X(9) = l; |
86 | R0(A, B, C, D, X(8), 7, 0x698098d8L); |
87 | (void)HOST_c2l(data, l); |
88 | X(10) = l; |
89 | R0(D, A, B, C, X(9), 12, 0x8b44f7afL); |
90 | (void)HOST_c2l(data, l); |
91 | X(11) = l; |
92 | R0(C, D, A, B, X(10), 17, 0xffff5bb1L); |
93 | (void)HOST_c2l(data, l); |
94 | X(12) = l; |
95 | R0(B, C, D, A, X(11), 22, 0x895cd7beL); |
96 | (void)HOST_c2l(data, l); |
97 | X(13) = l; |
98 | R0(A, B, C, D, X(12), 7, 0x6b901122L); |
99 | (void)HOST_c2l(data, l); |
100 | X(14) = l; |
101 | R0(D, A, B, C, X(13), 12, 0xfd987193L); |
102 | (void)HOST_c2l(data, l); |
103 | X(15) = l; |
104 | R0(C, D, A, B, X(14), 17, 0xa679438eL); |
105 | R0(B, C, D, A, X(15), 22, 0x49b40821L); |
106 | /* Round 1 */ |
107 | R1(A, B, C, D, X(1), 5, 0xf61e2562L); |
108 | R1(D, A, B, C, X(6), 9, 0xc040b340L); |
109 | R1(C, D, A, B, X(11), 14, 0x265e5a51L); |
110 | R1(B, C, D, A, X(0), 20, 0xe9b6c7aaL); |
111 | R1(A, B, C, D, X(5), 5, 0xd62f105dL); |
112 | R1(D, A, B, C, X(10), 9, 0x02441453L); |
113 | R1(C, D, A, B, X(15), 14, 0xd8a1e681L); |
114 | R1(B, C, D, A, X(4), 20, 0xe7d3fbc8L); |
115 | R1(A, B, C, D, X(9), 5, 0x21e1cde6L); |
116 | R1(D, A, B, C, X(14), 9, 0xc33707d6L); |
117 | R1(C, D, A, B, X(3), 14, 0xf4d50d87L); |
118 | R1(B, C, D, A, X(8), 20, 0x455a14edL); |
119 | R1(A, B, C, D, X(13), 5, 0xa9e3e905L); |
120 | R1(D, A, B, C, X(2), 9, 0xfcefa3f8L); |
121 | R1(C, D, A, B, X(7), 14, 0x676f02d9L); |
122 | R1(B, C, D, A, X(12), 20, 0x8d2a4c8aL); |
123 | /* Round 2 */ |
124 | R2(A, B, C, D, X(5), 4, 0xfffa3942L); |
125 | R2(D, A, B, C, X(8), 11, 0x8771f681L); |
126 | R2(C, D, A, B, X(11), 16, 0x6d9d6122L); |
127 | R2(B, C, D, A, X(14), 23, 0xfde5380cL); |
128 | R2(A, B, C, D, X(1), 4, 0xa4beea44L); |
129 | R2(D, A, B, C, X(4), 11, 0x4bdecfa9L); |
130 | R2(C, D, A, B, X(7), 16, 0xf6bb4b60L); |
131 | R2(B, C, D, A, X(10), 23, 0xbebfbc70L); |
132 | R2(A, B, C, D, X(13), 4, 0x289b7ec6L); |
133 | R2(D, A, B, C, X(0), 11, 0xeaa127faL); |
134 | R2(C, D, A, B, X(3), 16, 0xd4ef3085L); |
135 | R2(B, C, D, A, X(6), 23, 0x04881d05L); |
136 | R2(A, B, C, D, X(9), 4, 0xd9d4d039L); |
137 | R2(D, A, B, C, X(12), 11, 0xe6db99e5L); |
138 | R2(C, D, A, B, X(15), 16, 0x1fa27cf8L); |
139 | R2(B, C, D, A, X(2), 23, 0xc4ac5665L); |
140 | /* Round 3 */ |
141 | R3(A, B, C, D, X(0), 6, 0xf4292244L); |
142 | R3(D, A, B, C, X(7), 10, 0x432aff97L); |
143 | R3(C, D, A, B, X(14), 15, 0xab9423a7L); |
144 | R3(B, C, D, A, X(5), 21, 0xfc93a039L); |
145 | R3(A, B, C, D, X(12), 6, 0x655b59c3L); |
146 | R3(D, A, B, C, X(3), 10, 0x8f0ccc92L); |
147 | R3(C, D, A, B, X(10), 15, 0xffeff47dL); |
148 | R3(B, C, D, A, X(1), 21, 0x85845dd1L); |
149 | R3(A, B, C, D, X(8), 6, 0x6fa87e4fL); |
150 | R3(D, A, B, C, X(15), 10, 0xfe2ce6e0L); |
151 | R3(C, D, A, B, X(6), 15, 0xa3014314L); |
152 | R3(B, C, D, A, X(13), 21, 0x4e0811a1L); |
153 | R3(A, B, C, D, X(4), 6, 0xf7537e82L); |
154 | R3(D, A, B, C, X(11), 10, 0xbd3af235L); |
155 | R3(C, D, A, B, X(2), 15, 0x2ad7d2bbL); |
156 | R3(B, C, D, A, X(9), 21, 0xeb86d391L); |
157 | |
158 | A = c->A += A; |
159 | B = c->B += B; |
160 | C = c->C += C; |
161 | D = c->D += D; |
162 | } |
163 | } |
164 | #endif |
165 | |