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 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 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