1 /*
2 * Copyright 1995-2020 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 /*
11 * MD4 low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14 #include "internal/deprecated.h"
15
16 #include <stdio.h>
17 #include <openssl/opensslv.h>
18 #include "md4_local.h"
19
20 /*
21 * Implemented from RFC1186 The MD4 Message-Digest Algorithm
22 */
23
24 #define INIT_DATA_A (unsigned long)0x67452301L
25 #define INIT_DATA_B (unsigned long)0xefcdab89L
26 #define INIT_DATA_C (unsigned long)0x98badcfeL
27 #define INIT_DATA_D (unsigned long)0x10325476L
28
MD4_Init(MD4_CTX * c)29 int MD4_Init(MD4_CTX *c)
30 {
31 memset(c, 0, sizeof(*c));
32 c->A = INIT_DATA_A;
33 c->B = INIT_DATA_B;
34 c->C = INIT_DATA_C;
35 c->D = INIT_DATA_D;
36 return 1;
37 }
38
39 #ifndef md4_block_data_order
40 # ifdef X
41 # undef X
42 # endif
md4_block_data_order(MD4_CTX * c,const void * data_,size_t num)43 void md4_block_data_order(MD4_CTX *c, const void *data_, size_t num)
44 {
45 const unsigned char *data = data_;
46 register unsigned MD32_REG_T A, B, C, D, l;
47 # ifndef MD32_XARRAY
48 /* See comment in crypto/sha/sha_local.h for details. */
49 unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
50 XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
51 # define X(i) XX##i
52 # else
53 MD4_LONG XX[MD4_LBLOCK];
54 # define X(i) XX[i]
55 # endif
56
57 A = c->A;
58 B = c->B;
59 C = c->C;
60 D = c->D;
61
62 for (; num--;) {
63 (void)HOST_c2l(data, l);
64 X(0) = l;
65 (void)HOST_c2l(data, l);
66 X(1) = l;
67 /* Round 0 */
68 R0(A, B, C, D, X(0), 3, 0);
69 (void)HOST_c2l(data, l);
70 X(2) = l;
71 R0(D, A, B, C, X(1), 7, 0);
72 (void)HOST_c2l(data, l);
73 X(3) = l;
74 R0(C, D, A, B, X(2), 11, 0);
75 (void)HOST_c2l(data, l);
76 X(4) = l;
77 R0(B, C, D, A, X(3), 19, 0);
78 (void)HOST_c2l(data, l);
79 X(5) = l;
80 R0(A, B, C, D, X(4), 3, 0);
81 (void)HOST_c2l(data, l);
82 X(6) = l;
83 R0(D, A, B, C, X(5), 7, 0);
84 (void)HOST_c2l(data, l);
85 X(7) = l;
86 R0(C, D, A, B, X(6), 11, 0);
87 (void)HOST_c2l(data, l);
88 X(8) = l;
89 R0(B, C, D, A, X(7), 19, 0);
90 (void)HOST_c2l(data, l);
91 X(9) = l;
92 R0(A, B, C, D, X(8), 3, 0);
93 (void)HOST_c2l(data, l);
94 X(10) = l;
95 R0(D, A, B, C, X(9), 7, 0);
96 (void)HOST_c2l(data, l);
97 X(11) = l;
98 R0(C, D, A, B, X(10), 11, 0);
99 (void)HOST_c2l(data, l);
100 X(12) = l;
101 R0(B, C, D, A, X(11), 19, 0);
102 (void)HOST_c2l(data, l);
103 X(13) = l;
104 R0(A, B, C, D, X(12), 3, 0);
105 (void)HOST_c2l(data, l);
106 X(14) = l;
107 R0(D, A, B, C, X(13), 7, 0);
108 (void)HOST_c2l(data, l);
109 X(15) = l;
110 R0(C, D, A, B, X(14), 11, 0);
111 R0(B, C, D, A, X(15), 19, 0);
112 /* Round 1 */
113 R1(A, B, C, D, X(0), 3, 0x5A827999L);
114 R1(D, A, B, C, X(4), 5, 0x5A827999L);
115 R1(C, D, A, B, X(8), 9, 0x5A827999L);
116 R1(B, C, D, A, X(12), 13, 0x5A827999L);
117 R1(A, B, C, D, X(1), 3, 0x5A827999L);
118 R1(D, A, B, C, X(5), 5, 0x5A827999L);
119 R1(C, D, A, B, X(9), 9, 0x5A827999L);
120 R1(B, C, D, A, X(13), 13, 0x5A827999L);
121 R1(A, B, C, D, X(2), 3, 0x5A827999L);
122 R1(D, A, B, C, X(6), 5, 0x5A827999L);
123 R1(C, D, A, B, X(10), 9, 0x5A827999L);
124 R1(B, C, D, A, X(14), 13, 0x5A827999L);
125 R1(A, B, C, D, X(3), 3, 0x5A827999L);
126 R1(D, A, B, C, X(7), 5, 0x5A827999L);
127 R1(C, D, A, B, X(11), 9, 0x5A827999L);
128 R1(B, C, D, A, X(15), 13, 0x5A827999L);
129 /* Round 2 */
130 R2(A, B, C, D, X(0), 3, 0x6ED9EBA1L);
131 R2(D, A, B, C, X(8), 9, 0x6ED9EBA1L);
132 R2(C, D, A, B, X(4), 11, 0x6ED9EBA1L);
133 R2(B, C, D, A, X(12), 15, 0x6ED9EBA1L);
134 R2(A, B, C, D, X(2), 3, 0x6ED9EBA1L);
135 R2(D, A, B, C, X(10), 9, 0x6ED9EBA1L);
136 R2(C, D, A, B, X(6), 11, 0x6ED9EBA1L);
137 R2(B, C, D, A, X(14), 15, 0x6ED9EBA1L);
138 R2(A, B, C, D, X(1), 3, 0x6ED9EBA1L);
139 R2(D, A, B, C, X(9), 9, 0x6ED9EBA1L);
140 R2(C, D, A, B, X(5), 11, 0x6ED9EBA1L);
141 R2(B, C, D, A, X(13), 15, 0x6ED9EBA1L);
142 R2(A, B, C, D, X(3), 3, 0x6ED9EBA1L);
143 R2(D, A, B, C, X(11), 9, 0x6ED9EBA1L);
144 R2(C, D, A, B, X(7), 11, 0x6ED9EBA1L);
145 R2(B, C, D, A, X(15), 15, 0x6ED9EBA1L);
146
147 A = c->A += A;
148 B = c->B += B;
149 C = c->C += C;
150 D = c->D += D;
151 }
152 }
153 #endif
154
