1 | // Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
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2 | // Java port Copyright 1996 Frank O'Dwyer (fod@brd.ie)
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3 | // Copyright 1996 Rainbow Diamond Limited
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4 | // All rights reserved.
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5 | //
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6 | // The ie.brd.crypto.algorithms.DES package is substantially derived from
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7 | // part of an SSL implementation written in 'C' by Eric Young (eay@mincom.oz.au).
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8 | // See below for the terms and conditions that apply to that code. This section
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9 | // describes the additional terms and conditions for this Java port only:
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10 | //
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11 | // NOTICE TO USER:
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12 | // THIS IS A CONTRACT BETWEEN YOU AND RAINBOW DIAMOND LIMITED ("RAINBOW DIAMOND"),
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13 | // AN IRISH LIMITED COMPANY. BY INSTALLING THIS SOFTWARE, YOU ACCEPT ALL THE
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14 | // TERMS AND CONDITIONS OF THIS AGREEMENT. ADDITIONALLY, NOTHING OTHER THAN
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15 | // ACCEPTING THE TERMS OF THIS AGREEMENT ENTITLES YOU TO COPY OR REDISTRIBUTE
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16 | // THIS SOFTWARE.
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17 | //
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18 | // This set of classes is FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
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19 | // as long as the following conditions are adhered to:
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20 | //
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21 | // Copyright remains with the authors and as such any Copyright notices in
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22 | // the code are not to be removed. If this code is used in a product,
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23 | // Eric Young and Rainbow Diamond Limited should be given attribution as the
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24 | // authors of the parts used. This can be in the form of a textual message at
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25 | // program startup or in documentation (online or textual) provided with the
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26 | // package.
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27 | //
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28 | // Redistribution and use in source and binary forms, with or without
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29 | // modification, are permitted provided that the following conditions
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30 | // are met:
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31 | // 1. Redistributions of source code must retain the copyright
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32 | // notice, this list of conditions and the following disclaimer.
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33 | // 2. Redistributions in binary form must reproduce the above copyright
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34 | // notice, this list of conditions and the following disclaimer in the
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35 | // documentation and/or other materials provided with the distribution.
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36 | // 3. All advertising materials mentioning features or use of this software
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37 | // must display the following acknowledgement:
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38 | // This product includes software developed by Eric Young (eay@mincom.oz.au)
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39 | // Java port by Frank O'Dwyer (fod@brd.ie) for Rainbow Diamond Limited.
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40 | // 4. You agree that the software will not be shipped, transferred or exported
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41 | // into any country or used in any manner prohibited by applicable export
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42 | // laws, restrictions or regulations. You agree to indemnify and save
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43 | // harmless Rainbow Diamond Limited, its employees, and suppliers against
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44 | // any loss, injury, damage or expense whatsover either to it, or any third
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45 | // party as a result of your own acts, defaults, or neglect in exporting
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46 | // or transferring the software.
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47 | // 5. RAINBOW DIAMOND LIMITED IS PROVIDING YOU WITH THIS SOFTWARE FREE OF CHARGE
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48 | // FOR DEMONSTRATION PURPOSES ON AN "AS IS" BASIS. RAINBOW DIAMOND AND ITS
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49 | // SUPPLIERS DO NOT AND CANNOT WARRANT THE PERFORMANCE OR RESULTS YOU MAY
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50 | // OBTAIN BY USING THE SOFTWARE OR DOCUMENTATION. SAVE FOR ANY WARRANTY WHICH
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51 | // CANNOT BE EXCLUDED BY COMPULSORY LAW IN IRELAND, RAINBOW DIAMOND AND ITS
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52 | // SUPPLIERS MAKE NO WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, AS TO
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53 | // NONINFRINGEMENT OF THIRD PARTY RIGHTS, MERCHANTIBILITY, SATISFACTORY QUALITY
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54 | // OR FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT WILL RAINBOW DIAMOND
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55 | // OR ITS SUPPLIERS BE LIABLE TO YOU FOR ANY DAMAGES WHATSOEVER (INCLUDING,
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56 | // WITHOUT LIMITATION CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES, INCLUDING
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57 | // ANY LOST PROFITS OR LOST SAVINGS) ARISING OUT OF THE USE OR INABILITY TO
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58 | // USE THE SOFTWARE EVEN IF A RAINBOW DIAMOND REPRESENTATIVE HAS BEEN ADVISED
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59 | // OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY A THIRD PARTY. WHERE
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60 | // LEGALLY LIABILITY CANNOT BE EXCLUDED, BUT IT MAY BE LIMITED, RAINBOW
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61 | // DIAMOND'S LIABILITY AND THAT OF ITS SUPPLIERS SHALL BE LIMITED TO THE SUM
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62 | // OF TWENTY FIVE POUNDS (�25) IN TOTAL.
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63 | //
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64 | // The contractual rights which you enjoy by virtue of Section 12, 13, 14, and
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65 | // 15 of the Sale of Goods Act, 1893 (as amended) are in no way prejudiced
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66 | // by anything contained in this Agreement save (if you are not dealing as
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67 | // a consumer or in the case of an international sale of goods) to the extent
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68 | // permitted by law.
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69 | //
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70 | // Section 39 of the Sale of Goods and Supply of Services Act, 1980 is hereby
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71 | // excluded with respect to the supply of this software. The contractual rights
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72 | // which you enjoy by virtue of the provisions of Section 39 of the Sale of Goods
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73 | // and Supply of Services Act, 1980 are in no way prejudiced by anything contained
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74 | // in these terms and conditions save to the extent permitted by law.
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75 | //
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76 | // Rainbow Diamond Limited is acting on behalf its suppliers for the purpose of
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77 | // disclaiming, excluding and/or restricting obligations, warranties and
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78 | // liability as provided in this clause 5, but in no other respects and for
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79 | // no other purpose.
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80 | // 6. This agreeement is governed by Irish law and you submit to the jurisdiction
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81 | // of the Irish courts in relation to any matter or dispute arising hereunder.
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82 | //
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83 | // The licence and distribution terms for any publically available version or
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84 | // derivative of this code cannot be changed. i.e. this code cannot simply be
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85 | // copied and put under another distribution licence
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86 | // [including the GNU Public Licence.]
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87 |
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88 | /* original eay copyright notice follows:*/
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89 |
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90 | /* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
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91 | * All rights reserved.
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92 | *
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93 | * This file is part of an SSL implementation written
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94 | * by Eric Young (eay@mincom.oz.au).
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95 | * The implementation was written so as to conform with Netscapes SSL
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96 | * specification. This library and applications are
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97 | * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
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98 | * as long as the following conditions are aheared to.
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99 | *
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100 | * Copyright remains Eric Young's, and as such any Copyright notices in
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101 | * the code are not to be removed. If this code is used in a product,
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102 | * Eric Young should be given attribution as the author of the parts used.
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103 | * This can be in the form of a textual message at program startup or
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104 | * in documentation (online or textual) provided with the package.
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105 | *
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106 | * Redistribution and use in source and binary forms, with or without
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107 | * modification, are permitted provided that the following conditions
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108 | * are met:
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109 | * 1. Redistributions of source code must retain the copyright
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110 | * notice, this list of conditions and the following disclaimer.
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111 | * 2. Redistributions in binary form must reproduce the above copyright
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112 | * notice, this list of conditions and the following disclaimer in the
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113 | * documentation and/or other materials provided with the distribution.
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114 | * 3. All advertising materials mentioning features or use of this software
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115 | * must display the following acknowledgement:
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116 | * This product includes software developed by Eric Young (eay@mincom.oz.au)
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117 | *
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118 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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119 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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120 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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121 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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122 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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123 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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124 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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125 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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126 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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127 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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128 | * SUCH DAMAGE.
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129 | *
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130 | * The licence and distribution terms for any publically available version or
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131 | * derivative of this code cannot be changed. i.e. this code cannot simply be
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132 | * copied and put under another distribution licence
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133 | * [including the GNU Public Licence.]
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134 | */
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135 |
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136 | #include "../globals.h"
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137 | #include "../oscam-string.h"
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138 | #include "des.h"
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139 |
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140 | static const uint8_t weak_keys[16][8] =
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141 | {
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142 | // weak keys
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143 | {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01},
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144 | {0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE},
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145 | {0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F},
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146 | {0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0},
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147 | // semi-weak keys
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148 | {0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE},
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149 | {0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01},
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150 | {0x1F,0xE0,0x1F,0xE0,0x0E,0xF1,0x0E,0xF1},
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151 | {0xE0,0x1F,0xE0,0x1F,0xF1,0x0E,0xF1,0x0E},
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152 | {0x01,0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1},
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153 | {0xE0,0x01,0xE0,0x01,0xF1,0x01,0xF1,0x01},
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154 | {0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E,0xFE},
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155 | {0xFE,0x1F,0xFE,0x1F,0xFE,0x0E,0xFE,0x0E},
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156 | {0x01,0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E},
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157 | {0x1F,0x01,0x1F,0x01,0x0E,0x01,0x0E,0x01},
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158 | {0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1,0xFE},
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159 | {0xFE,0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1}
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160 | };
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161 |
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162 | static const uint8_t odd_parity[] =
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163 | {
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164 | 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
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165 | 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
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166 | 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
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167 | 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
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168 | 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
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169 | 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
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170 | 97, 97, 98, 98, 100,100,103,103,104,104,107,107,109,109,110,110,
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171 | 112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127,
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172 | 128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143,
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173 | 145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158,
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174 | 161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174,
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175 | 176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191,
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176 | 193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206,
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177 | 208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223,
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178 | 224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239,
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179 | 241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254
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180 | };
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181 |
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182 | static const uint8_t shifts2[16] = {0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0};
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183 |
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184 | static const uint32_t des_skb[8][64] =
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185 | {
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186 | {
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187 | 0x00000000,0x00000010,0x20000000,0x20000010,
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188 | 0x00010000,0x00010010,0x20010000,0x20010010,
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189 | 0x00000800,0x00000810,0x20000800,0x20000810,
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190 | 0x00010800,0x00010810,0x20010800,0x20010810,
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191 | 0x00000020,0x00000030,0x20000020,0x20000030,
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192 | 0x00010020,0x00010030,0x20010020,0x20010030,
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193 | 0x00000820,0x00000830,0x20000820,0x20000830,
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194 | 0x00010820,0x00010830,0x20010820,0x20010830,
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195 | 0x00080000,0x00080010,0x20080000,0x20080010,
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196 | 0x00090000,0x00090010,0x20090000,0x20090010,
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197 | 0x00080800,0x00080810,0x20080800,0x20080810,
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198 | 0x00090800,0x00090810,0x20090800,0x20090810,
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199 | 0x00080020,0x00080030,0x20080020,0x20080030,
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200 | 0x00090020,0x00090030,0x20090020,0x20090030,
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201 | 0x00080820,0x00080830,0x20080820,0x20080830,
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202 | 0x00090820,0x00090830,0x20090820,0x20090830,
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203 | },{
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204 |
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205 | 0x00000000,0x02000000,0x00002000,0x02002000,
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206 | 0x00200000,0x02200000,0x00202000,0x02202000,
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207 | 0x00000004,0x02000004,0x00002004,0x02002004,
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208 | 0x00200004,0x02200004,0x00202004,0x02202004,
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209 | 0x00000400,0x02000400,0x00002400,0x02002400,
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210 | 0x00200400,0x02200400,0x00202400,0x02202400,
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211 | 0x00000404,0x02000404,0x00002404,0x02002404,
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212 | 0x00200404,0x02200404,0x00202404,0x02202404,
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213 | 0x10000000,0x12000000,0x10002000,0x12002000,
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214 | 0x10200000,0x12200000,0x10202000,0x12202000,
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215 | 0x10000004,0x12000004,0x10002004,0x12002004,
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216 | 0x10200004,0x12200004,0x10202004,0x12202004,
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217 | 0x10000400,0x12000400,0x10002400,0x12002400,
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218 | 0x10200400,0x12200400,0x10202400,0x12202400,
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219 | 0x10000404,0x12000404,0x10002404,0x12002404,
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220 | 0x10200404,0x12200404,0x10202404,0x12202404,
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221 | },{
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222 |
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223 | 0x00000000,0x00000001,0x00040000,0x00040001,
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224 | 0x01000000,0x01000001,0x01040000,0x01040001,
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225 | 0x00000002,0x00000003,0x00040002,0x00040003,
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226 | 0x01000002,0x01000003,0x01040002,0x01040003,
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227 | 0x00000200,0x00000201,0x00040200,0x00040201,
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228 | 0x01000200,0x01000201,0x01040200,0x01040201,
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229 | 0x00000202,0x00000203,0x00040202,0x00040203,
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230 | 0x01000202,0x01000203,0x01040202,0x01040203,
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231 | 0x08000000,0x08000001,0x08040000,0x08040001,
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232 | 0x09000000,0x09000001,0x09040000,0x09040001,
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233 | 0x08000002,0x08000003,0x08040002,0x08040003,
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234 | 0x09000002,0x09000003,0x09040002,0x09040003,
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235 | 0x08000200,0x08000201,0x08040200,0x08040201,
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236 | 0x09000200,0x09000201,0x09040200,0x09040201,
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237 | 0x08000202,0x08000203,0x08040202,0x08040203,
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238 | 0x09000202,0x09000203,0x09040202,0x09040203,
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239 | },{
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240 |
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241 | 0x00000000,0x00100000,0x00000100,0x00100100,
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242 | 0x00000008,0x00100008,0x00000108,0x00100108,
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243 | 0x00001000,0x00101000,0x00001100,0x00101100,
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244 | 0x00001008,0x00101008,0x00001108,0x00101108,
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245 | 0x04000000,0x04100000,0x04000100,0x04100100,
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246 | 0x04000008,0x04100008,0x04000108,0x04100108,
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247 | 0x04001000,0x04101000,0x04001100,0x04101100,
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248 | 0x04001008,0x04101008,0x04001108,0x04101108,
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249 | 0x00020000,0x00120000,0x00020100,0x00120100,
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250 | 0x00020008,0x00120008,0x00020108,0x00120108,
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251 | 0x00021000,0x00121000,0x00021100,0x00121100,
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252 | 0x00021008,0x00121008,0x00021108,0x00121108,
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253 | 0x04020000,0x04120000,0x04020100,0x04120100,
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254 | 0x04020008,0x04120008,0x04020108,0x04120108,
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255 | 0x04021000,0x04121000,0x04021100,0x04121100,
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256 | 0x04021008,0x04121008,0x04021108,0x04121108,
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257 | },{
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258 |
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259 | 0x00000000,0x10000000,0x00010000,0x10010000,
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260 | 0x00000004,0x10000004,0x00010004,0x10010004,
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261 | 0x20000000,0x30000000,0x20010000,0x30010000,
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262 | 0x20000004,0x30000004,0x20010004,0x30010004,
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263 | 0x00100000,0x10100000,0x00110000,0x10110000,
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264 | 0x00100004,0x10100004,0x00110004,0x10110004,
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265 | 0x20100000,0x30100000,0x20110000,0x30110000,
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266 | 0x20100004,0x30100004,0x20110004,0x30110004,
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267 | 0x00001000,0x10001000,0x00011000,0x10011000,
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268 | 0x00001004,0x10001004,0x00011004,0x10011004,
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269 | 0x20001000,0x30001000,0x20011000,0x30011000,
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270 | 0x20001004,0x30001004,0x20011004,0x30011004,
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271 | 0x00101000,0x10101000,0x00111000,0x10111000,
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272 | 0x00101004,0x10101004,0x00111004,0x10111004,
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273 | 0x20101000,0x30101000,0x20111000,0x30111000,
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274 | 0x20101004,0x30101004,0x20111004,0x30111004,
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275 | },{
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276 |
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277 | 0x00000000,0x08000000,0x00000008,0x08000008,
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278 | 0x00000400,0x08000400,0x00000408,0x08000408,
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279 | 0x00020000,0x08020000,0x00020008,0x08020008,
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280 | 0x00020400,0x08020400,0x00020408,0x08020408,
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281 | 0x00000001,0x08000001,0x00000009,0x08000009,
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282 | 0x00000401,0x08000401,0x00000409,0x08000409,
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283 | 0x00020001,0x08020001,0x00020009,0x08020009,
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284 | 0x00020401,0x08020401,0x00020409,0x08020409,
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285 | 0x02000000,0x0A000000,0x02000008,0x0A000008,
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286 | 0x02000400,0x0A000400,0x02000408,0x0A000408,
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287 | 0x02020000,0x0A020000,0x02020008,0x0A020008,
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288 | 0x02020400,0x0A020400,0x02020408,0x0A020408,
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289 | 0x02000001,0x0A000001,0x02000009,0x0A000009,
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290 | 0x02000401,0x0A000401,0x02000409,0x0A000409,
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291 | 0x02020001,0x0A020001,0x02020009,0x0A020009,
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292 | 0x02020401,0x0A020401,0x02020409,0x0A020409,
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293 | },{
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294 |
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295 | 0x00000000,0x00000100,0x00080000,0x00080100,
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296 | 0x01000000,0x01000100,0x01080000,0x01080100,
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297 | 0x00000010,0x00000110,0x00080010,0x00080110,
|
---|
298 | 0x01000010,0x01000110,0x01080010,0x01080110,
|
---|
299 | 0x00200000,0x00200100,0x00280000,0x00280100,
|
---|
300 | 0x01200000,0x01200100,0x01280000,0x01280100,
|
---|
301 | 0x00200010,0x00200110,0x00280010,0x00280110,
|
---|
302 | 0x01200010,0x01200110,0x01280010,0x01280110,
|
---|
303 | 0x00000200,0x00000300,0x00080200,0x00080300,
|
---|
304 | 0x01000200,0x01000300,0x01080200,0x01080300,
|
---|
305 | 0x00000210,0x00000310,0x00080210,0x00080310,
|
---|
306 | 0x01000210,0x01000310,0x01080210,0x01080310,
|
---|
307 | 0x00200200,0x00200300,0x00280200,0x00280300,
|
---|
308 | 0x01200200,0x01200300,0x01280200,0x01280300,
|
---|
309 | 0x00200210,0x00200310,0x00280210,0x00280310,
|
---|
310 | 0x01200210,0x01200310,0x01280210,0x01280310,
|
---|
311 | },{
|
---|
312 |
|
---|
313 | 0x00000000,0x04000000,0x00040000,0x04040000,
|
---|
314 | 0x00000002,0x04000002,0x00040002,0x04040002,
|
---|
315 | 0x00002000,0x04002000,0x00042000,0x04042000,
|
---|
316 | 0x00002002,0x04002002,0x00042002,0x04042002,
|
---|
317 | 0x00000020,0x04000020,0x00040020,0x04040020,
|
---|
318 | 0x00000022,0x04000022,0x00040022,0x04040022,
|
---|
319 | 0x00002020,0x04002020,0x00042020,0x04042020,
|
---|
320 | 0x00002022,0x04002022,0x00042022,0x04042022,
|
---|
321 | 0x00000800,0x04000800,0x00040800,0x04040800,
|
---|
322 | 0x00000802,0x04000802,0x00040802,0x04040802,
|
---|
323 | 0x00002800,0x04002800,0x00042800,0x04042800,
|
---|
324 | 0x00002802,0x04002802,0x00042802,0x04042802,
|
---|
325 | 0x00000820,0x04000820,0x00040820,0x04040820,
|
---|
326 | 0x00000822,0x04000822,0x00040822,0x04040822,
|
---|
327 | 0x00002820,0x04002820,0x00042820,0x04042820,
|
---|
328 | 0x00002822,0x04002822,0x00042822,0x04042822,
|
---|
329 | }
|
---|
330 | };
|
---|
331 |
|
---|
332 | static const uint32_t des_SPtrans[8][64] =
|
---|
333 | {
|
---|
334 | {
|
---|
335 | 0x00820200, 0x00020000, 0x80800000, 0x80820200,
|
---|
336 | 0x00800000, 0x80020200, 0x80020000, 0x80800000,
|
---|
337 | 0x80020200, 0x00820200, 0x00820000, 0x80000200,
|
---|
338 | 0x80800200, 0x00800000, 0x00000000, 0x80020000,
|
---|
339 | 0x00020000, 0x80000000, 0x00800200, 0x00020200,
|
---|
340 | 0x80820200, 0x00820000, 0x80000200, 0x00800200,
|
---|
341 | 0x80000000, 0x00000200, 0x00020200, 0x80820000,
|
---|
342 | 0x00000200, 0x80800200, 0x80820000, 0x00000000,
|
---|
343 | 0x00000000, 0x80820200, 0x00800200, 0x80020000,
|
---|
344 | 0x00820200, 0x00020000, 0x80000200, 0x00800200,
|
---|
345 | 0x80820000, 0x00000200, 0x00020200, 0x80800000,
|
---|
346 | 0x80020200, 0x80000000, 0x80800000, 0x00820000,
|
---|
347 | 0x80820200, 0x00020200, 0x00820000, 0x80800200,
|
---|
348 | 0x00800000, 0x80000200, 0x80020000, 0x00000000,
|
---|
349 | 0x00020000, 0x00800000, 0x80800200, 0x00820200,
|
---|
350 | 0x80000000, 0x80820000, 0x00000200, 0x80020200,
|
---|
351 | },{
|
---|
352 |
|
---|
353 | 0x10042004, 0x00000000, 0x00042000, 0x10040000,
|
---|
354 | 0x10000004, 0x00002004, 0x10002000, 0x00042000,
|
---|
355 | 0x00002000, 0x10040004, 0x00000004, 0x10002000,
|
---|
356 | 0x00040004, 0x10042000, 0x10040000, 0x00000004,
|
---|
357 | 0x00040000, 0x10002004, 0x10040004, 0x00002000,
|
---|
358 | 0x00042004, 0x10000000, 0x00000000, 0x00040004,
|
---|
359 | 0x10002004, 0x00042004, 0x10042000, 0x10000004,
|
---|
360 | 0x10000000, 0x00040000, 0x00002004, 0x10042004,
|
---|
361 | 0x00040004, 0x10042000, 0x10002000, 0x00042004,
|
---|
362 | 0x10042004, 0x00040004, 0x10000004, 0x00000000,
|
---|
363 | 0x10000000, 0x00002004, 0x00040000, 0x10040004,
|
---|
364 | 0x00002000, 0x10000000, 0x00042004, 0x10002004,
|
---|
365 | 0x10042000, 0x00002000, 0x00000000, 0x10000004,
|
---|
366 | 0x00000004, 0x10042004, 0x00042000, 0x10040000,
|
---|
367 | 0x10040004, 0x00040000, 0x00002004, 0x10002000,
|
---|
368 | 0x10002004, 0x00000004, 0x10040000, 0x00042000,
|
---|
369 | },{
|
---|
370 |
|
---|
371 | 0x41000000, 0x01010040, 0x00000040, 0x41000040,
|
---|
372 | 0x40010000, 0x01000000, 0x41000040, 0x00010040,
|
---|
373 | 0x01000040, 0x00010000, 0x01010000, 0x40000000,
|
---|
374 | 0x41010040, 0x40000040, 0x40000000, 0x41010000,
|
---|
375 | 0x00000000, 0x40010000, 0x01010040, 0x00000040,
|
---|
376 | 0x40000040, 0x41010040, 0x00010000, 0x41000000,
|
---|
377 | 0x41010000, 0x01000040, 0x40010040, 0x01010000,
|
---|
378 | 0x00010040, 0x00000000, 0x01000000, 0x40010040,
|
---|
379 | 0x01010040, 0x00000040, 0x40000000, 0x00010000,
|
---|
380 | 0x40000040, 0x40010000, 0x01010000, 0x41000040,
|
---|
381 | 0x00000000, 0x01010040, 0x00010040, 0x41010000,
|
---|
382 | 0x40010000, 0x01000000, 0x41010040, 0x40000000,
|
---|
383 | 0x40010040, 0x41000000, 0x01000000, 0x41010040,
|
---|
384 | 0x00010000, 0x01000040, 0x41000040, 0x00010040,
|
---|
385 | 0x01000040, 0x00000000, 0x41010000, 0x40000040,
|
---|
386 | 0x41000000, 0x40010040, 0x00000040, 0x01010000,
|
---|
387 | },{
|
---|
388 |
|
---|
389 | 0x00100402, 0x04000400, 0x00000002, 0x04100402,
|
---|
390 | 0x00000000, 0x04100000, 0x04000402, 0x00100002,
|
---|
391 | 0x04100400, 0x04000002, 0x04000000, 0x00000402,
|
---|
392 | 0x04000002, 0x00100402, 0x00100000, 0x04000000,
|
---|
393 | 0x04100002, 0x00100400, 0x00000400, 0x00000002,
|
---|
394 | 0x00100400, 0x04000402, 0x04100000, 0x00000400,
|
---|
395 | 0x00000402, 0x00000000, 0x00100002, 0x04100400,
|
---|
396 | 0x04000400, 0x04100002, 0x04100402, 0x00100000,
|
---|
397 | 0x04100002, 0x00000402, 0x00100000, 0x04000002,
|
---|
398 | 0x00100400, 0x04000400, 0x00000002, 0x04100000,
|
---|
399 | 0x04000402, 0x00000000, 0x00000400, 0x00100002,
|
---|
400 | 0x00000000, 0x04100002, 0x04100400, 0x00000400,
|
---|
401 | 0x04000000, 0x04100402, 0x00100402, 0x00100000,
|
---|
402 | 0x04100402, 0x00000002, 0x04000400, 0x00100402,
|
---|
403 | 0x00100002, 0x00100400, 0x04100000, 0x04000402,
|
---|
404 | 0x00000402, 0x04000000, 0x04000002, 0x04100400,
|
---|
405 | },{
|
---|
406 |
|
---|
407 | 0x02000000, 0x00004000, 0x00000100, 0x02004108,
|
---|
408 | 0x02004008, 0x02000100, 0x00004108, 0x02004000,
|
---|
409 | 0x00004000, 0x00000008, 0x02000008, 0x00004100,
|
---|
410 | 0x02000108, 0x02004008, 0x02004100, 0x00000000,
|
---|
411 | 0x00004100, 0x02000000, 0x00004008, 0x00000108,
|
---|
412 | 0x02000100, 0x00004108, 0x00000000, 0x02000008,
|
---|
413 | 0x00000008, 0x02000108, 0x02004108, 0x00004008,
|
---|
414 | 0x02004000, 0x00000100, 0x00000108, 0x02004100,
|
---|
415 | 0x02004100, 0x02000108, 0x00004008, 0x02004000,
|
---|
416 | 0x00004000, 0x00000008, 0x02000008, 0x02000100,
|
---|
417 | 0x02000000, 0x00004100, 0x02004108, 0x00000000,
|
---|
418 | 0x00004108, 0x02000000, 0x00000100, 0x00004008,
|
---|
419 | 0x02000108, 0x00000100, 0x00000000, 0x02004108,
|
---|
420 | 0x02004008, 0x02004100, 0x00000108, 0x00004000,
|
---|
421 | 0x00004100, 0x02004008, 0x02000100, 0x00000108,
|
---|
422 | 0x00000008, 0x00004108, 0x02004000, 0x02000008,
|
---|
423 | },{
|
---|
424 |
|
---|
425 | 0x20000010, 0x00080010, 0x00000000, 0x20080800,
|
---|
426 | 0x00080010, 0x00000800, 0x20000810, 0x00080000,
|
---|
427 | 0x00000810, 0x20080810, 0x00080800, 0x20000000,
|
---|
428 | 0x20000800, 0x20000010, 0x20080000, 0x00080810,
|
---|
429 | 0x00080000, 0x20000810, 0x20080010, 0x00000000,
|
---|
430 | 0x00000800, 0x00000010, 0x20080800, 0x20080010,
|
---|
431 | 0x20080810, 0x20080000, 0x20000000, 0x00000810,
|
---|
432 | 0x00000010, 0x00080800, 0x00080810, 0x20000800,
|
---|
433 | 0x00000810, 0x20000000, 0x20000800, 0x00080810,
|
---|
434 | 0x20080800, 0x00080010, 0x00000000, 0x20000800,
|
---|
435 | 0x20000000, 0x00000800, 0x20080010, 0x00080000,
|
---|
436 | 0x00080010, 0x20080810, 0x00080800, 0x00000010,
|
---|
437 | 0x20080810, 0x00080800, 0x00080000, 0x20000810,
|
---|
438 | 0x20000010, 0x20080000, 0x00080810, 0x00000000,
|
---|
439 | 0x00000800, 0x20000010, 0x20000810, 0x20080800,
|
---|
440 | 0x20080000, 0x00000810, 0x00000010, 0x20080010,
|
---|
441 | },{
|
---|
442 |
|
---|
443 | 0x00001000, 0x00000080, 0x00400080, 0x00400001,
|
---|
444 | 0x00401081, 0x00001001, 0x00001080, 0x00000000,
|
---|
445 | 0x00400000, 0x00400081, 0x00000081, 0x00401000,
|
---|
446 | 0x00000001, 0x00401080, 0x00401000, 0x00000081,
|
---|
447 | 0x00400081, 0x00001000, 0x00001001, 0x00401081,
|
---|
448 | 0x00000000, 0x00400080, 0x00400001, 0x00001080,
|
---|
449 | 0x00401001, 0x00001081, 0x00401080, 0x00000001,
|
---|
450 | 0x00001081, 0x00401001, 0x00000080, 0x00400000,
|
---|
451 | 0x00001081, 0x00401000, 0x00401001, 0x00000081,
|
---|
452 | 0x00001000, 0x00000080, 0x00400000, 0x00401001,
|
---|
453 | 0x00400081, 0x00001081, 0x00001080, 0x00000000,
|
---|
454 | 0x00000080, 0x00400001, 0x00000001, 0x00400080,
|
---|
455 | 0x00000000, 0x00400081, 0x00400080, 0x00001080,
|
---|
456 | 0x00000081, 0x00001000, 0x00401081, 0x00400000,
|
---|
457 | 0x00401080, 0x00000001, 0x00001001, 0x00401081,
|
---|
458 | 0x00400001, 0x00401080, 0x00401000, 0x00001001,
|
---|
459 | },{
|
---|
460 |
|
---|
461 | 0x08200020, 0x08208000, 0x00008020, 0x00000000,
|
---|
462 | 0x08008000, 0x00200020, 0x08200000, 0x08208020,
|
---|
463 | 0x00000020, 0x08000000, 0x00208000, 0x00008020,
|
---|
464 | 0x00208020, 0x08008020, 0x08000020, 0x08200000,
|
---|
465 | 0x00008000, 0x00208020, 0x00200020, 0x08008000,
|
---|
466 | 0x08208020, 0x08000020, 0x00000000, 0x00208000,
|
---|
467 | 0x08000000, 0x00200000, 0x08008020, 0x08200020,
|
---|
468 | 0x00200000, 0x00008000, 0x08208000, 0x00000020,
|
---|
469 | 0x00200000, 0x00008000, 0x08000020, 0x08208020,
|
---|
470 | 0x00008020, 0x08000000, 0x00000000, 0x00208000,
|
---|
471 | 0x08200020, 0x08008020, 0x08008000, 0x00200020,
|
---|
472 | 0x08208000, 0x00000020, 0x00200020, 0x08008000,
|
---|
473 | 0x08208020, 0x00200000, 0x08200000, 0x08000020,
|
---|
474 | 0x00208000, 0x00008020, 0x08008020, 0x08200000,
|
---|
475 | 0x00000020, 0x08208000, 0x00208020, 0x00000000,
|
---|
476 | 0x08000000, 0x08200020, 0x00008000, 0x00208020,
|
---|
477 | }
|
---|
478 | };
|
---|
479 |
|
---|
480 | static const int32_t DES_KEY_SZ=8;
|
---|
481 |
|
---|
482 | void des_set_odd_parity(uint8_t* key)
|
---|
483 | {
|
---|
484 | int32_t i;
|
---|
485 |
|
---|
486 | for (i=0; i < DES_KEY_SZ; i++)
|
---|
487 | key[i]=odd_parity[key[i]&0xff];
|
---|
488 | }
|
---|
489 |
|
---|
490 | int8_t check_parity(const uint8_t* key)
|
---|
491 | {
|
---|
492 | int32_t i;
|
---|
493 |
|
---|
494 | for (i=0; i < DES_KEY_SZ; i++)
|
---|
495 | {
|
---|
496 | if (key[i] != odd_parity[key[i]&0xff])
|
---|
497 | return 0;
|
---|
498 | }
|
---|
499 | return 1;
|
---|
500 | }
|
---|
501 |
|
---|
502 | int8_t des_is_weak_key(const uint8_t* key)
|
---|
503 | {
|
---|
504 | int32_t i, j;
|
---|
505 |
|
---|
506 | for (i=0; i < 16; i++)
|
---|
507 | {
|
---|
508 | for(j=0; j < DES_KEY_SZ; j++)
|
---|
509 | {
|
---|
510 | if (weak_keys[i][j] != key[j])
|
---|
511 | {
|
---|
512 | // not weak
|
---|
513 | continue;
|
---|
514 | }
|
---|
515 | }
|
---|
516 | // weak
|
---|
517 | return 1;
|
---|
518 | }
|
---|
519 | return 0;
|
---|
520 | }
|
---|
521 |
|
---|
522 | static uint32_t Get32bits(const uint8_t* key, int32_t kindex)
|
---|
523 | {
|
---|
524 | return(((key[kindex+3]&0xff)<<24) + ((key[kindex+2]&0xff)<<16) + ((key[kindex+1]&0xff)<<8) + (key[kindex]&0xff));
|
---|
525 | }
|
---|
526 |
|
---|
527 | int8_t des_set_key(const uint8_t* key, uint32_t* schedule)
|
---|
528 | {
|
---|
529 | uint32_t c,d,t,s;
|
---|
530 | int32_t inIndex;
|
---|
531 | int32_t kIndex;
|
---|
532 | int32_t i;
|
---|
533 | inIndex=0;
|
---|
534 | kIndex=0;
|
---|
535 | c =Get32bits(key, inIndex);
|
---|
536 | d =Get32bits(key, inIndex+4);
|
---|
537 | t=(((d>>4)^c)&0x0f0f0f0f);
|
---|
538 | c^=t;
|
---|
539 | d^=(t<<4);
|
---|
540 | t=(((c<<(16-(-2)))^c)&0xcccc0000);
|
---|
541 | c=c^t^(t>>(16-(-2)));
|
---|
542 | t=((d<<(16-(-2)))^d)&0xcccc0000;
|
---|
543 | d=d^t^(t>>(16-(-2)));
|
---|
544 | t=((d>>1)^c)&0x55555555;
|
---|
545 | c^=t;
|
---|
546 | d^=(t<<1);
|
---|
547 | t=((c>>8)^d)&0x00ff00ff;
|
---|
548 | d^=t;
|
---|
549 | c^=(t<<8);
|
---|
550 | t=((d>>1)^c)&0x55555555;
|
---|
551 | c^=t;
|
---|
552 | d^=(t<<1);
|
---|
553 | d= (((d&0x000000ff)<<16)| (d&0x0000ff00) |((d&0x00ff0000)>>16)|((c&0xf0000000)>>4));
|
---|
554 | c&=0x0fffffff;
|
---|
555 | for (i=0; i < 16; i++)
|
---|
556 | {
|
---|
557 | if (shifts2[i])
|
---|
558 | {
|
---|
559 | c=((c>>2)|(c<<26));
|
---|
560 | d=((d>>2)|(d<<26));
|
---|
561 | }
|
---|
562 | else
|
---|
563 | {
|
---|
564 | c=((c>>1)|(c<<27));
|
---|
565 | d=((d>>1)|(d<<27));
|
---|
566 | }
|
---|
567 | c&=0x0fffffff;
|
---|
568 | d&=0x0fffffff;
|
---|
569 | s= des_skb[0][ (c )&0x3f ]|
|
---|
570 | des_skb[1][((c>> 6)&0x03)|((c>> 7)&0x3c)]|
|
---|
571 | des_skb[2][((c>>13)&0x0f)|((c>>14)&0x30)]|
|
---|
572 | des_skb[3][((c>>20)&0x01)|((c>>21)&0x06) |
|
---|
573 | ((c>>22)&0x38)];
|
---|
574 | t= des_skb[4][ (d )&0x3f ]|
|
---|
575 | des_skb[5][((d>> 7)&0x03)|((d>> 8)&0x3c)]|
|
---|
576 | des_skb[6][ (d>>15)&0x3f ]|
|
---|
577 | des_skb[7][((d>>21)&0x0f)|((d>>22)&0x30)];
|
---|
578 | schedule[kIndex++]=((t<<16)|(s&0x0000ffff))&0xffffffff;
|
---|
579 | s=((s>>16)|(t&0xffff0000));
|
---|
580 | s=(s<<4)|(s>>28);
|
---|
581 | schedule[kIndex++]=s&0xffffffff;
|
---|
582 | }
|
---|
583 | return 1;
|
---|
584 | }
|
---|
585 |
|
---|
586 | static uint32_t _lrotr(uint32_t i)
|
---|
587 | {
|
---|
588 | return((i>>4) | ((i&0xff)<<28));
|
---|
589 | }
|
---|
590 |
|
---|
591 | static void des_encrypt_int(uint32_t* data, const uint32_t* ks, int8_t do_encrypt)
|
---|
592 | {
|
---|
593 | uint32_t l=0,r=0,t=0,u=0;
|
---|
594 | int32_t i;
|
---|
595 |
|
---|
596 | u=data[0];
|
---|
597 | r=data[1];
|
---|
598 |
|
---|
599 | {
|
---|
600 | uint32_t tt;
|
---|
601 |
|
---|
602 | tt=((r>>4)^u)&0x0f0f0f0f;
|
---|
603 | u^=tt;
|
---|
604 | r^=(tt<<4);
|
---|
605 | tt=(((u>>16)^r)&0x0000ffff);
|
---|
606 | r^=tt;
|
---|
607 | u^=(tt<<16);
|
---|
608 | tt=(((r>>2)^u)&0x33333333);
|
---|
609 | u^=tt;
|
---|
610 | r^=(tt<<2);
|
---|
611 | tt=(((u>>8)^r)&0x00ff00ff);
|
---|
612 | r^=tt;
|
---|
613 | u^=(tt<<8);
|
---|
614 | tt=(((r>>1)^u)&0x55555555);
|
---|
615 | u^=tt;
|
---|
616 | r^=(tt<<1);
|
---|
617 | }
|
---|
618 |
|
---|
619 | l=(r<<1)|(r>>31);
|
---|
620 | r=(u<<1)|(u>>31);
|
---|
621 | l&=0xffffffff;
|
---|
622 | r&=0xffffffff;
|
---|
623 |
|
---|
624 | if (do_encrypt)
|
---|
625 | {
|
---|
626 | for (i=0; i < 32; i+=8)
|
---|
627 | {
|
---|
628 | {
|
---|
629 | u=(r^ks[i+0 ]);
|
---|
630 | t=r^ks[i+0+1];
|
---|
631 | t=(_lrotr(t));
|
---|
632 | l^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
633 | };
|
---|
634 | {
|
---|
635 | u=(l^ks[i+2 ]);
|
---|
636 | t=l^ks[i+2+1];
|
---|
637 | t=(_lrotr(t));
|
---|
638 | r^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
639 | };
|
---|
640 | {
|
---|
641 | u=(r^ks[i+4 ]);
|
---|
642 | t=r^ks[i+4+1];
|
---|
643 | t=(_lrotr(t));
|
---|
644 | l^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
645 | };
|
---|
646 | {
|
---|
647 | u=(l^ks[i+6 ]);
|
---|
648 | t=l^ks[i+6+1];
|
---|
649 | t=(_lrotr(t));
|
---|
650 | r^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
651 | };
|
---|
652 | }
|
---|
653 | }
|
---|
654 | else
|
---|
655 | {
|
---|
656 | for (i=30; i > 0; i-=8)
|
---|
657 | {
|
---|
658 | {
|
---|
659 | u=(r^ks[i-0 ]);
|
---|
660 | t=r^ks[i-0+1];
|
---|
661 | t=(_lrotr(t));
|
---|
662 | l^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
663 | };
|
---|
664 | {
|
---|
665 | u=(l^ks[i-2 ]);
|
---|
666 | t=l^ks[i-2+1];
|
---|
667 | t=(_lrotr(t));
|
---|
668 | r^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
669 | };
|
---|
670 | {
|
---|
671 | u=(r^ks[i-4 ]);
|
---|
672 | t=r^ks[i-4+1];
|
---|
673 | t=(_lrotr(t));
|
---|
674 | l^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
675 | };
|
---|
676 | {
|
---|
677 | u=(l^ks[i-6 ]);
|
---|
678 | t=l^ks[i-6+1];
|
---|
679 | t=(_lrotr(t));
|
---|
680 | r^= des_SPtrans[1][(t )&0x3f]| des_SPtrans[3][(t>> 8)&0x3f]| des_SPtrans[5][(t>>16)&0x3f]| des_SPtrans[7][(t>>24)&0x3f]| des_SPtrans[0][(u )&0x3f]| des_SPtrans[2][(u>> 8)&0x3f]| des_SPtrans[4][(u>>16)&0x3f]| des_SPtrans[6][(u>>24)&0x3f];
|
---|
681 | };
|
---|
682 | }
|
---|
683 | }
|
---|
684 |
|
---|
685 | l=(l>>1)|(l<<31);
|
---|
686 | r=(r>>1)|(r<<31);
|
---|
687 | l&=0xffffffff;
|
---|
688 | r&=0xffffffff;
|
---|
689 |
|
---|
690 | {
|
---|
691 | uint32_t tt;
|
---|
692 | tt=(((r>>1)^l)&0x55555555);
|
---|
693 | l^=tt;
|
---|
694 | r^=(tt<<1);
|
---|
695 | tt=(((l>>8)^r)&0x00ff00ff);
|
---|
696 | r^=tt;
|
---|
697 | l^=(tt<<8);
|
---|
698 | tt=(((r>>2)^l)&0x33333333);
|
---|
699 | l^=tt;
|
---|
700 | r^=(tt<<2);
|
---|
701 | tt=(((l>>16)^r)&0x0000ffff);
|
---|
702 | r^=tt;
|
---|
703 | l^=(tt<<16);
|
---|
704 | tt=(((r>>4)^l)&0x0f0f0f0f);
|
---|
705 | l^=tt;
|
---|
706 | r^=(tt<<4);
|
---|
707 | }
|
---|
708 |
|
---|
709 | data[0]=l;
|
---|
710 | data[1]=r;
|
---|
711 | }
|
---|
712 |
|
---|
713 | void des(uint8_t* data, const uint32_t* schedule, int8_t do_encrypt)
|
---|
714 | {
|
---|
715 | uint32_t l, ll[2];
|
---|
716 | int32_t inIndex;
|
---|
717 | int32_t outIndex;
|
---|
718 |
|
---|
719 | inIndex=0;
|
---|
720 | outIndex=0;
|
---|
721 |
|
---|
722 | l = Get32bits(data, inIndex);
|
---|
723 | ll[0]=l;
|
---|
724 |
|
---|
725 | l = Get32bits(data, inIndex+4);
|
---|
726 | ll[1]=l;
|
---|
727 |
|
---|
728 | des_encrypt_int(ll, schedule, do_encrypt);
|
---|
729 |
|
---|
730 | l=ll[0];
|
---|
731 |
|
---|
732 | data[outIndex++] = (l&0xff);
|
---|
733 | data[outIndex++] = ((l>>8)&0xff);
|
---|
734 | data[outIndex++] = ((l>>16)&0xff);
|
---|
735 | data[outIndex++] = ((l>>24)&0xff);
|
---|
736 | l=ll[1];
|
---|
737 | data[outIndex++] = (l&0xff);
|
---|
738 | data[outIndex++] = ((l>>8) &0xff);
|
---|
739 | data[outIndex++] = ((l>>16) &0xff);
|
---|
740 | data[outIndex++] = ((l>>24) &0xff);
|
---|
741 | }
|
---|
742 |
|
---|
743 | static inline void xxor(uint8_t *data, int32_t len, const uint8_t *v1, const uint8_t *v2)
|
---|
744 | {
|
---|
745 | uint32_t i;
|
---|
746 | switch(len)
|
---|
747 | {
|
---|
748 | case 16:
|
---|
749 | for(i = 0; i < 16; ++i)
|
---|
750 | {
|
---|
751 | data[i] = v1[i] ^ v2[i];
|
---|
752 | }
|
---|
753 | break;
|
---|
754 | case 8:
|
---|
755 | for(i = 0; i < 8; ++i)
|
---|
756 | {
|
---|
757 | data[i] = v1[i] ^ v2[i];
|
---|
758 | }
|
---|
759 | break;
|
---|
760 | case 4:
|
---|
761 | for(i = 0; i < 4; ++i)
|
---|
762 | {
|
---|
763 | data[i] = v1[i] ^ v2[i];
|
---|
764 | }
|
---|
765 | break;
|
---|
766 | default:
|
---|
767 | while(len--)
|
---|
768 | {
|
---|
769 | *data++ = *v1++ ^ *v2++;
|
---|
770 | }
|
---|
771 | break;
|
---|
772 | }
|
---|
773 | }
|
---|
774 |
|
---|
775 | void des_ecb_encrypt(uint8_t* data, const uint8_t* key, int32_t len)
|
---|
776 | {
|
---|
777 | uint32_t schedule[32];
|
---|
778 | int32_t i;
|
---|
779 |
|
---|
780 | des_set_key(key, schedule);
|
---|
781 |
|
---|
782 | len&=~7;
|
---|
783 |
|
---|
784 | for(i=0; i<len; i+=8)
|
---|
785 | {
|
---|
786 | des(&data[i], schedule, 1);
|
---|
787 | }
|
---|
788 | }
|
---|
789 |
|
---|
790 | void des_ecb_decrypt(uint8_t* data, const uint8_t* key, int32_t len)
|
---|
791 | {
|
---|
792 | uint32_t schedule[32];
|
---|
793 | int32_t i;
|
---|
794 |
|
---|
795 | des_set_key(key, schedule);
|
---|
796 |
|
---|
797 | len&=~7;
|
---|
798 |
|
---|
799 | for(i=0; i<len; i+=8)
|
---|
800 | {
|
---|
801 | des(&data[i], schedule, 0);
|
---|
802 | }
|
---|
803 | }
|
---|
804 |
|
---|
805 | void des_cbc_encrypt(uint8_t* data, const uint8_t* iv, const uint8_t* key, int32_t len)
|
---|
806 | {
|
---|
807 | const uint8_t *civ = iv;
|
---|
808 | uint32_t schedule[32];
|
---|
809 | int32_t i;
|
---|
810 |
|
---|
811 | des_set_key(key, schedule);
|
---|
812 |
|
---|
813 | len&=~7;
|
---|
814 |
|
---|
815 | for(i=0; i<len; i+=8)
|
---|
816 | {
|
---|
817 | xxor(&data[i],8,&data[i],civ);
|
---|
818 | civ=&data[i];
|
---|
819 | des(&data[i], schedule, 1);
|
---|
820 | }
|
---|
821 | }
|
---|
822 |
|
---|
823 | void des_cbc_decrypt(uint8_t* data, const uint8_t* iv, const uint8_t* key, int32_t len)
|
---|
824 | {
|
---|
825 | uint8_t civ[2][8];
|
---|
826 | uint32_t schedule[32];
|
---|
827 | int32_t i, n=0;
|
---|
828 |
|
---|
829 | des_set_key(key, schedule);
|
---|
830 |
|
---|
831 | len&=~7;
|
---|
832 |
|
---|
833 | memcpy(civ[n],iv,8);
|
---|
834 | for(i=0; i<len; i+=8,data+=8,n^=1)
|
---|
835 | {
|
---|
836 | memcpy(civ[1-n],data,8);
|
---|
837 | des(data, schedule,0);
|
---|
838 | xxor(data,8,data,civ[n]);
|
---|
839 | }
|
---|
840 | }
|
---|
841 |
|
---|
842 | void des_ede2_cbc_encrypt(uint8_t* data, const uint8_t* iv, const uint8_t* key1, const uint8_t* key2, int32_t len)
|
---|
843 | {
|
---|
844 | const uint8_t *civ = iv;
|
---|
845 | uint32_t schedule1[32], schedule2[32];
|
---|
846 | int32_t i;
|
---|
847 |
|
---|
848 | des_set_key(key1, schedule1);
|
---|
849 | des_set_key(key2, schedule2);
|
---|
850 |
|
---|
851 | len&=~7;
|
---|
852 |
|
---|
853 | for(i=0; i<len; i+=8)
|
---|
854 | {
|
---|
855 | xxor(&data[i],8,&data[i],civ);
|
---|
856 | civ=&data[i];
|
---|
857 |
|
---|
858 | des(&data[i], schedule1, 1);
|
---|
859 | des(&data[i], schedule2, 0);
|
---|
860 | des(&data[i], schedule1, 1);
|
---|
861 | }
|
---|
862 | }
|
---|
863 |
|
---|
864 | void des_ede2_cbc_decrypt(uint8_t* data, const uint8_t* iv, const uint8_t* key1, const uint8_t* key2, int32_t len)
|
---|
865 | {
|
---|
866 | uint8_t civ[2][8];
|
---|
867 | uint32_t schedule1[32], schedule2[32];
|
---|
868 | int32_t i, n=0;
|
---|
869 |
|
---|
870 | des_set_key(key1, schedule1);
|
---|
871 | des_set_key(key2, schedule2);
|
---|
872 |
|
---|
873 | len&=~7;
|
---|
874 |
|
---|
875 | memcpy(civ[n],iv,8);
|
---|
876 | for(i=0; i<len; i+=8,data+=8,n^=1)
|
---|
877 | {
|
---|
878 | memcpy(civ[1-n],data,8);
|
---|
879 | des(data, schedule1, 0);
|
---|
880 | des(data, schedule2, 1);
|
---|
881 | des(data, schedule1, 0);
|
---|
882 | xxor(data,8,data,civ[n]);
|
---|
883 | }
|
---|
884 | }
|
---|
885 |
|
---|
886 | void des_ecb3_decrypt(uint8_t* data, const uint8_t* key)
|
---|
887 | {
|
---|
888 | uint8_t desA[8];
|
---|
889 | uint8_t desB[8];
|
---|
890 |
|
---|
891 | uint32_t schedule1[32];
|
---|
892 | uint32_t schedule2[32];
|
---|
893 |
|
---|
894 | memcpy(desA, key, 8);
|
---|
895 | des_set_key(desA, schedule1);
|
---|
896 | memcpy(desB, key+8, 8);
|
---|
897 | des_set_key(desB, schedule2);
|
---|
898 |
|
---|
899 | des(data, schedule1, 0);
|
---|
900 | des(data, schedule2, 1);
|
---|
901 | des(data, schedule1, 0);
|
---|
902 | }
|
---|
903 |
|
---|
904 | void des_ecb3_encrypt(uint8_t* data, const uint8_t* key)
|
---|
905 | {
|
---|
906 | uint8_t desA[8];
|
---|
907 | uint8_t desB[8];
|
---|
908 |
|
---|
909 | uint32_t schedule1[32];
|
---|
910 | uint32_t schedule2[32];
|
---|
911 |
|
---|
912 | memcpy(desA, key, 8);
|
---|
913 | des_set_key(desA, schedule1);
|
---|
914 | memcpy(desB, key+8, 8);
|
---|
915 | des_set_key(desB, schedule2);
|
---|
916 |
|
---|
917 | des(data, schedule1, 1);
|
---|
918 | des(data, schedule2, 0);
|
---|
919 | des(data, schedule1, 1);
|
---|
920 | }
|
---|