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1 /* crypto/des/xcbc_enc.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 © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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60 */ |
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61 |
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62 #include "des_locl.h" |
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63 #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__))) |
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64 #include "libcrypto_wsd_macros.h" |
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65 #include "libcrypto_wsd.h" |
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66 #endif |
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67 /* RSA's DESX */ |
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68 #ifndef EMULATOR |
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69 static unsigned char desx_white_in2out[256]={ |
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70 0xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0, |
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71 0x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A, |
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72 0x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36, |
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73 0x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C, |
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74 0x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60, |
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75 0x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA, |
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76 0xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E, |
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77 0xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF, |
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78 0x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6, |
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79 0xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3, |
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80 0x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C, |
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81 0xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2, |
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82 0x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5, |
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83 0x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5, |
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84 0x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F, |
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85 0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB, |
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86 }; |
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87 #else |
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88 static const unsigned char desx_white_in2out[256]={ |
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89 0xBD,0x56,0xEA,0xF2,0xA2,0xF1,0xAC,0x2A,0xB0,0x93,0xD1,0x9C,0x1B,0x33,0xFD,0xD0, |
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90 0x30,0x04,0xB6,0xDC,0x7D,0xDF,0x32,0x4B,0xF7,0xCB,0x45,0x9B,0x31,0xBB,0x21,0x5A, |
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91 0x41,0x9F,0xE1,0xD9,0x4A,0x4D,0x9E,0xDA,0xA0,0x68,0x2C,0xC3,0x27,0x5F,0x80,0x36, |
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92 0x3E,0xEE,0xFB,0x95,0x1A,0xFE,0xCE,0xA8,0x34,0xA9,0x13,0xF0,0xA6,0x3F,0xD8,0x0C, |
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93 0x78,0x24,0xAF,0x23,0x52,0xC1,0x67,0x17,0xF5,0x66,0x90,0xE7,0xE8,0x07,0xB8,0x60, |
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94 0x48,0xE6,0x1E,0x53,0xF3,0x92,0xA4,0x72,0x8C,0x08,0x15,0x6E,0x86,0x00,0x84,0xFA, |
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95 0xF4,0x7F,0x8A,0x42,0x19,0xF6,0xDB,0xCD,0x14,0x8D,0x50,0x12,0xBA,0x3C,0x06,0x4E, |
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96 0xEC,0xB3,0x35,0x11,0xA1,0x88,0x8E,0x2B,0x94,0x99,0xB7,0x71,0x74,0xD3,0xE4,0xBF, |
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97 0x3A,0xDE,0x96,0x0E,0xBC,0x0A,0xED,0x77,0xFC,0x37,0x6B,0x03,0x79,0x89,0x62,0xC6, |
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98 0xD7,0xC0,0xD2,0x7C,0x6A,0x8B,0x22,0xA3,0x5B,0x05,0x5D,0x02,0x75,0xD5,0x61,0xE3, |
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99 0x18,0x8F,0x55,0x51,0xAD,0x1F,0x0B,0x5E,0x85,0xE5,0xC2,0x57,0x63,0xCA,0x3D,0x6C, |
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100 0xB4,0xC5,0xCC,0x70,0xB2,0x91,0x59,0x0D,0x47,0x20,0xC8,0x4F,0x58,0xE0,0x01,0xE2, |
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101 0x16,0x38,0xC4,0x6F,0x3B,0x0F,0x65,0x46,0xBE,0x7E,0x2D,0x7B,0x82,0xF9,0x40,0xB5, |
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102 0x1D,0x73,0xF8,0xEB,0x26,0xC7,0x87,0x97,0x25,0x54,0xB1,0x28,0xAA,0x98,0x9D,0xA5, |
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103 0x64,0x6D,0x7A,0xD4,0x10,0x81,0x44,0xEF,0x49,0xD6,0xAE,0x2E,0xDD,0x76,0x5C,0x2F, |
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104 0xA7,0x1C,0xC9,0x09,0x69,0x9A,0x83,0xCF,0x29,0x39,0xB9,0xE9,0x4C,0xFF,0x43,0xAB, |
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105 }; |
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106 |
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107 #endif |
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108 EXPORT_C void DES_xwhite_in2out(const_DES_cblock *des_key, const_DES_cblock *in_white, |
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109 DES_cblock *out_white) |
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110 { |
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111 int out0,out1; |
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112 int i; |
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113 const unsigned char *key = &(*des_key)[0]; |
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114 const unsigned char *in = &(*in_white)[0]; |
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115 unsigned char *out = &(*out_white)[0]; |
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116 |
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117 out[0]=out[1]=out[2]=out[3]=out[4]=out[5]=out[6]=out[7]=0; |
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118 out0=out1=0; |
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119 for (i=0; i<8; i++) |
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120 { |
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121 out[i]=key[i]^desx_white_in2out[out0^out1]; |
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122 out0=out1; |
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123 out1=(int)out[i&0x07]; |
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124 } |
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125 |
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126 out0=out[0]; |
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127 out1=out[i]; |
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128 for (i=0; i<8; i++) |
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129 { |
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130 out[i]=in[i]^desx_white_in2out[out0^out1]; |
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131 out0=out1; |
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132 out1=(int)out[i&0x07]; |
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133 } |
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134 } |
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135 |
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136 EXPORT_C void DES_xcbc_encrypt(const unsigned char *in, unsigned char *out, |
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137 long length, DES_key_schedule *schedule, |
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138 DES_cblock *ivec, const_DES_cblock *inw, |
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139 const_DES_cblock *outw, int enc) |
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140 { |
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141 register DES_LONG tin0,tin1; |
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142 register DES_LONG tout0,tout1,xor0,xor1; |
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143 register DES_LONG inW0,inW1,outW0,outW1; |
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144 register const unsigned char *in2; |
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145 register long l=length; |
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146 DES_LONG tin[2]; |
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147 unsigned char *iv; |
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148 |
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149 in2 = &(*inw)[0]; |
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150 c2l(in2,inW0); |
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151 c2l(in2,inW1); |
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152 in2 = &(*outw)[0]; |
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153 c2l(in2,outW0); |
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154 c2l(in2,outW1); |
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155 |
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156 iv = &(*ivec)[0]; |
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157 |
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158 if (enc) |
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159 { |
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160 c2l(iv,tout0); |
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161 c2l(iv,tout1); |
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162 for (l-=8; l>=0; l-=8) |
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163 { |
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164 c2l(in,tin0); |
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165 c2l(in,tin1); |
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166 tin0^=tout0^inW0; tin[0]=tin0; |
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167 tin1^=tout1^inW1; tin[1]=tin1; |
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168 DES_encrypt1(tin,schedule,DES_ENCRYPT); |
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169 tout0=tin[0]^outW0; l2c(tout0,out); |
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170 tout1=tin[1]^outW1; l2c(tout1,out); |
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171 } |
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172 if (l != -8) |
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173 { |
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174 c2ln(in,tin0,tin1,l+8); |
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175 tin0^=tout0^inW0; tin[0]=tin0; |
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176 tin1^=tout1^inW1; tin[1]=tin1; |
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177 DES_encrypt1(tin,schedule,DES_ENCRYPT); |
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178 tout0=tin[0]^outW0; l2c(tout0,out); |
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179 tout1=tin[1]^outW1; l2c(tout1,out); |
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180 } |
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181 iv = &(*ivec)[0]; |
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182 l2c(tout0,iv); |
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183 l2c(tout1,iv); |
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184 } |
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185 else |
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186 { |
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187 c2l(iv,xor0); |
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188 c2l(iv,xor1); |
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189 for (l-=8; l>0; l-=8) |
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190 { |
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191 c2l(in,tin0); tin[0]=tin0^outW0; |
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192 c2l(in,tin1); tin[1]=tin1^outW1; |
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193 DES_encrypt1(tin,schedule,DES_DECRYPT); |
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194 tout0=tin[0]^xor0^inW0; |
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195 tout1=tin[1]^xor1^inW1; |
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196 l2c(tout0,out); |
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197 l2c(tout1,out); |
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198 xor0=tin0; |
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199 xor1=tin1; |
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200 } |
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201 if (l != -8) |
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202 { |
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203 c2l(in,tin0); tin[0]=tin0^outW0; |
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204 c2l(in,tin1); tin[1]=tin1^outW1; |
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205 DES_encrypt1(tin,schedule,DES_DECRYPT); |
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206 tout0=tin[0]^xor0^inW0; |
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207 tout1=tin[1]^xor1^inW1; |
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208 l2cn(tout0,tout1,out,l+8); |
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209 xor0=tin0; |
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210 xor1=tin1; |
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211 } |
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212 |
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213 iv = &(*ivec)[0]; |
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214 l2c(xor0,iv); |
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215 l2c(xor1,iv); |
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216 } |
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217 tin0=tin1=tout0=tout1=xor0=xor1=0; |
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218 inW0=inW1=outW0=outW1=0; |
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219 tin[0]=tin[1]=0; |
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220 } |
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221 |