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 <openssl/opensslv.h> |
12 | #include "md4_local.h" |
13 | |
14 | /* |
15 | * Implemented from RFC1186 The MD4 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 MD4_Init(MD4_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 md4_block_data_order |
34 | # ifdef X |
35 | # undef X |
36 | # endif |
37 | void md4_block_data_order(MD4_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 | MD4_LONG XX[MD4_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), 3, 0); |
63 | (void)HOST_c2l(data, l); |
64 | X(2) = l; |
65 | R0(D, A, B, C, X(1), 7, 0); |
66 | (void)HOST_c2l(data, l); |
67 | X(3) = l; |
68 | R0(C, D, A, B, X(2), 11, 0); |
69 | (void)HOST_c2l(data, l); |
70 | X(4) = l; |
71 | R0(B, C, D, A, X(3), 19, 0); |
72 | (void)HOST_c2l(data, l); |
73 | X(5) = l; |
74 | R0(A, B, C, D, X(4), 3, 0); |
75 | (void)HOST_c2l(data, l); |
76 | X(6) = l; |
77 | R0(D, A, B, C, X(5), 7, 0); |
78 | (void)HOST_c2l(data, l); |
79 | X(7) = l; |
80 | R0(C, D, A, B, X(6), 11, 0); |
81 | (void)HOST_c2l(data, l); |
82 | X(8) = l; |
83 | R0(B, C, D, A, X(7), 19, 0); |
84 | (void)HOST_c2l(data, l); |
85 | X(9) = l; |
86 | R0(A, B, C, D, X(8), 3, 0); |
87 | (void)HOST_c2l(data, l); |
88 | X(10) = l; |
89 | R0(D, A, B, C, X(9), 7, 0); |
90 | (void)HOST_c2l(data, l); |
91 | X(11) = l; |
92 | R0(C, D, A, B, X(10), 11, 0); |
93 | (void)HOST_c2l(data, l); |
94 | X(12) = l; |
95 | R0(B, C, D, A, X(11), 19, 0); |
96 | (void)HOST_c2l(data, l); |
97 | X(13) = l; |
98 | R0(A, B, C, D, X(12), 3, 0); |
99 | (void)HOST_c2l(data, l); |
100 | X(14) = l; |
101 | R0(D, A, B, C, X(13), 7, 0); |
102 | (void)HOST_c2l(data, l); |
103 | X(15) = l; |
104 | R0(C, D, A, B, X(14), 11, 0); |
105 | R0(B, C, D, A, X(15), 19, 0); |
106 | /* Round 1 */ |
107 | R1(A, B, C, D, X(0), 3, 0x5A827999L); |
108 | R1(D, A, B, C, X(4), 5, 0x5A827999L); |
109 | R1(C, D, A, B, X(8), 9, 0x5A827999L); |
110 | R1(B, C, D, A, X(12), 13, 0x5A827999L); |
111 | R1(A, B, C, D, X(1), 3, 0x5A827999L); |
112 | R1(D, A, B, C, X(5), 5, 0x5A827999L); |
113 | R1(C, D, A, B, X(9), 9, 0x5A827999L); |
114 | R1(B, C, D, A, X(13), 13, 0x5A827999L); |
115 | R1(A, B, C, D, X(2), 3, 0x5A827999L); |
116 | R1(D, A, B, C, X(6), 5, 0x5A827999L); |
117 | R1(C, D, A, B, X(10), 9, 0x5A827999L); |
118 | R1(B, C, D, A, X(14), 13, 0x5A827999L); |
119 | R1(A, B, C, D, X(3), 3, 0x5A827999L); |
120 | R1(D, A, B, C, X(7), 5, 0x5A827999L); |
121 | R1(C, D, A, B, X(11), 9, 0x5A827999L); |
122 | R1(B, C, D, A, X(15), 13, 0x5A827999L); |
123 | /* Round 2 */ |
124 | R2(A, B, C, D, X(0), 3, 0x6ED9EBA1L); |
125 | R2(D, A, B, C, X(8), 9, 0x6ED9EBA1L); |
126 | R2(C, D, A, B, X(4), 11, 0x6ED9EBA1L); |
127 | R2(B, C, D, A, X(12), 15, 0x6ED9EBA1L); |
128 | R2(A, B, C, D, X(2), 3, 0x6ED9EBA1L); |
129 | R2(D, A, B, C, X(10), 9, 0x6ED9EBA1L); |
130 | R2(C, D, A, B, X(6), 11, 0x6ED9EBA1L); |
131 | R2(B, C, D, A, X(14), 15, 0x6ED9EBA1L); |
132 | R2(A, B, C, D, X(1), 3, 0x6ED9EBA1L); |
133 | R2(D, A, B, C, X(9), 9, 0x6ED9EBA1L); |
134 | R2(C, D, A, B, X(5), 11, 0x6ED9EBA1L); |
135 | R2(B, C, D, A, X(13), 15, 0x6ED9EBA1L); |
136 | R2(A, B, C, D, X(3), 3, 0x6ED9EBA1L); |
137 | R2(D, A, B, C, X(11), 9, 0x6ED9EBA1L); |
138 | R2(C, D, A, B, X(7), 11, 0x6ED9EBA1L); |
139 | R2(B, C, D, A, X(15), 15, 0x6ED9EBA1L); |
140 | |
141 | A = c->A += A; |
142 | B = c->B += B; |
143 | C = c->C += C; |
144 | D = c->D += D; |
145 | } |
146 | } |
147 | #endif |
148 | |