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1 /* crypto/md2/md2_dgst.c */ |
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2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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3 * All rights reserved. |
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4 * |
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5 * This package is an SSL implementation written |
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6 * by Eric Young (eay@cryptsoft.com). |
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7 * The implementation was written so as to conform with Netscapes SSL. |
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8 * |
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9 * This library is free for commercial and non-commercial use as long as |
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10 * the following conditions are aheared to. The following conditions |
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11 * apply to all code found in this distribution, be it the RC4, RSA, |
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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13 * included with this distribution is covered by the same copyright terms |
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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15 * |
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16 * Copyright remains Eric Young's, and as such any Copyright notices in |
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17 * the code are not to be removed. |
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18 * If this package is used in a product, Eric Young should be given attribution |
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19 * as the author of the parts of the library used. |
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20 * This can be in the form of a textual message at program startup or |
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21 * in documentation (online or textual) provided with the package. |
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22 * |
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23 * Redistribution and use in source and binary forms, with or without |
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24 * modification, are permitted provided that the following conditions |
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25 * are met: |
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26 * 1. Redistributions of source code must retain the copyright |
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27 * notice, this list of conditions and the following disclaimer. |
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28 * 2. Redistributions in binary form must reproduce the above copyright |
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29 * notice, this list of conditions and the following disclaimer in the |
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30 * documentation and/or other materials provided with the distribution. |
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31 * 3. All advertising materials mentioning features or use of this software |
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32 * must display the following acknowledgement: |
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33 * "This product includes cryptographic software written by |
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34 * Eric Young (eay@cryptsoft.com)" |
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35 * The word 'cryptographic' can be left out if the rouines from the library |
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36 * being used are not cryptographic related :-). |
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37 * 4. If you include any Windows specific code (or a derivative thereof) from |
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38 * the apps directory (application code) you must include an acknowledgement: |
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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40 * |
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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51 * SUCH DAMAGE. |
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52 * |
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53 * The licence and distribution terms for any publically available version or |
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
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55 * copied and put under another distribution licence |
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56 * [including the GNU Public Licence.] |
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57 */ |
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58 |
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59 /* |
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60 © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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61 */ |
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62 |
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63 #include <stdio.h> |
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64 #include <stdlib.h> |
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65 #include <string.h> |
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66 #include <openssl/md2.h> |
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67 #include <openssl/opensslv.h> |
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68 #include <openssl/crypto.h> |
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69 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__))) |
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70 #include "libcrypto_wsd_macros.h" |
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71 #include "libcrypto_wsd.h" |
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72 #endif |
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73 |
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74 |
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75 const char MD2_version[]="MD2" OPENSSL_VERSION_PTEXT; |
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76 |
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77 /* Implemented from RFC1319 The MD2 Message-Digest Algorithm |
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78 */ |
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79 |
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80 #define UCHAR unsigned char |
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81 |
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82 static void md2_block(MD2_CTX *c, const unsigned char *d); |
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83 |
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84 |
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85 #ifndef EMULATOR |
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86 /* The magic S table - I have converted it to hex since it is |
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87 * basically just a random byte string. */ |
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88 static MD2_INT S[256]={ |
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89 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, |
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90 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, |
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91 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, |
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92 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, |
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93 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, |
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94 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, |
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95 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, |
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96 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, |
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97 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, |
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98 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, |
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99 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, |
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100 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, |
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101 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, |
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102 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, |
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103 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, |
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104 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, |
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105 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, |
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106 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, |
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107 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, |
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108 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, |
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109 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, |
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110 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, |
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111 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, |
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112 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, |
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113 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, |
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114 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, |
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115 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, |
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116 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, |
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117 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, |
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118 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, |
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119 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, |
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120 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14, |
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121 }; |
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122 #else |
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123 static const MD2_INT S[256]={ |
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124 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, |
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125 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, |
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126 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, |
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127 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, |
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128 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, |
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129 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, |
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130 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, |
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131 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, |
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132 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, |
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133 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, |
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134 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, |
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135 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, |
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136 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, |
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137 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, |
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138 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, |
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139 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, |
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140 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, |
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141 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, |
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142 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, |
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143 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, |
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144 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, |
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145 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, |
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146 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, |
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147 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, |
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148 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, |
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149 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, |
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150 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, |
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151 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, |
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152 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, |
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153 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, |
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154 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, |
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155 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14, |
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156 }; |
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157 |
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158 |
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159 #endif |
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160 EXPORT_C const char *MD2_options(void) |
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161 { |
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162 if (sizeof(MD2_INT) == 1) |
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163 return("md2(char)"); |
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164 else |
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165 return("md2(int)"); |
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166 } |
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167 |
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168 EXPORT_C int MD2_Init(MD2_CTX *c) |
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169 { |
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170 c->num=0; |
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171 memset(c->state,0,sizeof c->state); |
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172 memset(c->cksm,0,sizeof c->cksm); |
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173 memset(c->data,0,sizeof c->data); |
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174 return 1; |
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175 } |
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176 |
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177 EXPORT_C int MD2_Update(MD2_CTX *c, const unsigned char *data, size_t len) |
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178 { |
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179 register UCHAR *p; |
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180 |
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181 if (len == 0) return 1; |
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182 |
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183 p=c->data; |
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184 if (c->num != 0) |
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185 { |
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186 if ((c->num+len) >= MD2_BLOCK) |
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187 { |
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188 memcpy(&(p[c->num]),data,MD2_BLOCK-c->num); |
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189 md2_block(c,c->data); |
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190 data+=(MD2_BLOCK - c->num); |
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191 len-=(MD2_BLOCK - c->num); |
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192 c->num=0; |
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193 /* drop through and do the rest */ |
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194 } |
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195 else |
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196 { |
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197 memcpy(&(p[c->num]),data,len); |
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198 /* data+=len; */ |
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199 c->num+=(int)len; |
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200 return 1; |
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201 } |
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202 } |
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203 /* we now can process the input data in blocks of MD2_BLOCK |
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204 * chars and save the leftovers to c->data. */ |
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205 while (len >= MD2_BLOCK) |
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206 { |
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207 md2_block(c,data); |
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208 data+=MD2_BLOCK; |
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209 len-=MD2_BLOCK; |
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210 } |
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211 memcpy(p,data,len); |
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212 c->num=(int)len; |
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213 return 1; |
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214 } |
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215 |
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216 static void md2_block(MD2_CTX *c, const unsigned char *d) |
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217 { |
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218 register MD2_INT t,*sp1,*sp2; |
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219 register int i,j; |
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220 MD2_INT state[48]; |
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221 |
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222 sp1=c->state; |
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223 sp2=c->cksm; |
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224 j=sp2[MD2_BLOCK-1]; |
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225 for (i=0; i<16; i++) |
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226 { |
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227 state[i]=sp1[i]; |
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228 state[i+16]=t=d[i]; |
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229 state[i+32]=(t^sp1[i]); |
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230 j=sp2[i]^=S[t^j]; |
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231 } |
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232 t=0; |
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233 for (i=0; i<18; i++) |
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234 { |
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235 for (j=0; j<48; j+=8) |
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236 { |
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237 t= state[j+ 0]^=S[t]; |
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238 t= state[j+ 1]^=S[t]; |
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239 t= state[j+ 2]^=S[t]; |
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240 t= state[j+ 3]^=S[t]; |
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241 t= state[j+ 4]^=S[t]; |
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242 t= state[j+ 5]^=S[t]; |
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243 t= state[j+ 6]^=S[t]; |
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244 t= state[j+ 7]^=S[t]; |
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245 } |
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246 t=(t+i)&0xff; |
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247 } |
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248 memcpy(sp1,state,16*sizeof(MD2_INT)); |
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249 OPENSSL_cleanse(state,48*sizeof(MD2_INT)); |
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250 } |
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251 |
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252 EXPORT_C int MD2_Final(unsigned char *md, MD2_CTX *c) |
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253 { |
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254 int i,v; |
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255 register UCHAR *cp; |
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256 register MD2_INT *p1,*p2; |
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257 |
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258 cp=c->data; |
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259 p1=c->state; |
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260 p2=c->cksm; |
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261 v=MD2_BLOCK-c->num; |
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262 for (i=c->num; i<MD2_BLOCK; i++) |
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263 cp[i]=(UCHAR)v; |
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264 |
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265 md2_block(c,cp); |
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266 |
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267 for (i=0; i<MD2_BLOCK; i++) |
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268 cp[i]=(UCHAR)p2[i]; |
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269 md2_block(c,cp); |
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270 |
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271 for (i=0; i<16; i++) |
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272 md[i]=(UCHAR)(p1[i]&0xff); |
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273 memset((char *)&c,0,sizeof(c)); |
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274 return 1; |
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275 } |
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276 |