1 /* 2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (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