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annotate src/lib-ntlm/ntlm-des.c @ 9354:687ac828b964 HEAD

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lib-index: modseqs weren't tracked properly within session when changes were done.
author Timo Sirainen <tss@iki.fi>
date Tue, 01 Sep 2009 13:05:03 -0400
parents 227733bbe607
children
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1 /*
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2 * Implementation of DES encryption for NTLM
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3 *
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4 * Copyright 1997-2005 Simon Tatham.
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5 *
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6 * This software is released under the MIT license.
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7 */
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8
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9 #include "lib.h"
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10 #include "ntlm-des.h"
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12 /*
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13 * Description of DES
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14 * ------------------
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15 *
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16 * Unlike the description in FIPS 46, I'm going to use _sensible_ indices:
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17 * bits in an n-bit word are numbered from 0 at the LSB to n-1 at the MSB.
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18 * And S-boxes are indexed by six consecutive bits, not by the outer two
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19 * followed by the middle four.
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20 *
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21 * The DES encryption routine requires a 64-bit input, and a key schedule K
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22 * containing 16 48-bit elements.
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23 *
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24 * First the input is permuted by the initial permutation IP.
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25 * Then the input is split into 32-bit words L and R. (L is the MSW.)
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26 * Next, 16 rounds. In each round:
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27 * (L, R) <- (R, L xor f(R, K[i]))
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28 * Then the pre-output words L and R are swapped.
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29 * Then L and R are glued back together into a 64-bit word. (L is the MSW,
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30 * again, but since we just swapped them, the MSW is the R that came out
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31 * of the last round.)
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32 * The 64-bit output block is permuted by the inverse of IP and returned.
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33 *
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34 * Decryption is identical except that the elements of K are used in the
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35 * opposite order. (This wouldn't work if that word swap didn't happen.)
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36 *
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37 * The function f, used in each round, accepts a 32-bit word R and a
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38 * 48-bit key block K. It produces a 32-bit output.
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39 *
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40 * First R is expanded to 48 bits using the bit-selection function E.
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41 * The resulting 48-bit block is XORed with the key block K to produce
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42 * a 48-bit block X.
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43 * This block X is split into eight groups of 6 bits. Each group of 6
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44 * bits is then looked up in one of the eight S-boxes to convert
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45 * it to 4 bits. These eight groups of 4 bits are glued back
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46 * together to produce a 32-bit preoutput block.
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47 * The preoutput block is permuted using the permutation P and returned.
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48 *
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49 * Key setup maps a 64-bit key word into a 16x48-bit key schedule. Although
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50 * the approved input format for the key is a 64-bit word, eight of the
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51 * bits are discarded, so the actual quantity of key used is 56 bits.
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52 *
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53 * First the input key is converted to two 28-bit words C and D using
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54 * the bit-selection function PC1.
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55 * Then 16 rounds of key setup occur. In each round, C and D are each
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56 * rotated left by either 1 or 2 bits (depending on which round), and
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57 * then converted into a key schedule element using the bit-selection
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58 * function PC2.
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59 *
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60 * That's the actual algorithm. Now for the tedious details: all those
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61 * painful permutations and lookup tables.
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62 *
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63 * IP is a 64-to-64 bit permutation. Its output contains the following
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64 * bits of its input (listed in order MSB to LSB of output).
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65 *
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66 * 6 14 22 30 38 46 54 62 4 12 20 28 36 44 52 60
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67 * 2 10 18 26 34 42 50 58 0 8 16 24 32 40 48 56
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68 * 7 15 23 31 39 47 55 63 5 13 21 29 37 45 53 61
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69 * 3 11 19 27 35 43 51 59 1 9 17 25 33 41 49 57
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70 *
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71 * E is a 32-to-48 bit selection function. Its output contains the following
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72 * bits of its input (listed in order MSB to LSB of output).
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73 *
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74 * 0 31 30 29 28 27 28 27 26 25 24 23 24 23 22 21 20 19 20 19 18 17 16 15
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75 * 16 15 14 13 12 11 12 11 10 9 8 7 8 7 6 5 4 3 4 3 2 1 0 31
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76 *
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77 * The S-boxes are arbitrary table-lookups each mapping a 6-bit input to a
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78 * 4-bit output. In other words, each S-box is an array[64] of 4-bit numbers.
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79 * The S-boxes are listed below. The first S-box listed is applied to the
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80 * most significant six bits of the block X; the last one is applied to the
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81 * least significant.
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82 *
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83 * 14 0 4 15 13 7 1 4 2 14 15 2 11 13 8 1
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84 * 3 10 10 6 6 12 12 11 5 9 9 5 0 3 7 8
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85 * 4 15 1 12 14 8 8 2 13 4 6 9 2 1 11 7
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86 * 15 5 12 11 9 3 7 14 3 10 10 0 5 6 0 13
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87 *
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88 * 15 3 1 13 8 4 14 7 6 15 11 2 3 8 4 14
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89 * 9 12 7 0 2 1 13 10 12 6 0 9 5 11 10 5
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90 * 0 13 14 8 7 10 11 1 10 3 4 15 13 4 1 2
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91 * 5 11 8 6 12 7 6 12 9 0 3 5 2 14 15 9
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92 *
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93 * 10 13 0 7 9 0 14 9 6 3 3 4 15 6 5 10
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94 * 1 2 13 8 12 5 7 14 11 12 4 11 2 15 8 1
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95 * 13 1 6 10 4 13 9 0 8 6 15 9 3 8 0 7
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96 * 11 4 1 15 2 14 12 3 5 11 10 5 14 2 7 12
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97 *
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98 * 7 13 13 8 14 11 3 5 0 6 6 15 9 0 10 3
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99 * 1 4 2 7 8 2 5 12 11 1 12 10 4 14 15 9
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100 * 10 3 6 15 9 0 0 6 12 10 11 1 7 13 13 8
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101 * 15 9 1 4 3 5 14 11 5 12 2 7 8 2 4 14
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102 *
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103 * 2 14 12 11 4 2 1 12 7 4 10 7 11 13 6 1
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104 * 8 5 5 0 3 15 15 10 13 3 0 9 14 8 9 6
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105 * 4 11 2 8 1 12 11 7 10 1 13 14 7 2 8 13
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106 * 15 6 9 15 12 0 5 9 6 10 3 4 0 5 14 3
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107 *
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108 * 12 10 1 15 10 4 15 2 9 7 2 12 6 9 8 5
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109 * 0 6 13 1 3 13 4 14 14 0 7 11 5 3 11 8
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110 * 9 4 14 3 15 2 5 12 2 9 8 5 12 15 3 10
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111 * 7 11 0 14 4 1 10 7 1 6 13 0 11 8 6 13
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112 *
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113 * 4 13 11 0 2 11 14 7 15 4 0 9 8 1 13 10
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114 * 3 14 12 3 9 5 7 12 5 2 10 15 6 8 1 6
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115 * 1 6 4 11 11 13 13 8 12 1 3 4 7 10 14 7
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116 * 10 9 15 5 6 0 8 15 0 14 5 2 9 3 2 12
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117 *
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118 * 13 1 2 15 8 13 4 8 6 10 15 3 11 7 1 4
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119 * 10 12 9 5 3 6 14 11 5 0 0 14 12 9 7 2
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120 * 7 2 11 1 4 14 1 7 9 4 12 10 14 8 2 13
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121 * 0 15 6 12 10 9 13 0 15 3 3 5 5 6 8 11
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122 *
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123 * P is a 32-to-32 bit permutation. Its output contains the following
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124 * bits of its input (listed in order MSB to LSB of output).
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125 *
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126 * 16 25 12 11 3 20 4 15 31 17 9 6 27 14 1 22
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127 * 30 24 8 18 0 5 29 23 13 19 2 26 10 21 28 7
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128 *
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129 * PC1 is a 64-to-56 bit selection function. Its output is in two words,
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130 * C and D. The word C contains the following bits of its input (listed
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131 * in order MSB to LSB of output).
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132 *
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133 * 7 15 23 31 39 47 55 63 6 14 22 30 38 46
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134 * 54 62 5 13 21 29 37 45 53 61 4 12 20 28
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135 *
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136 * And the word D contains these bits.
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137 *
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138 * 1 9 17 25 33 41 49 57 2 10 18 26 34 42
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139 * 50 58 3 11 19 27 35 43 51 59 36 44 52 60
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140 *
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141 * PC2 is a 56-to-48 bit selection function. Its input is in two words,
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142 * C and D. These are treated as one 56-bit word (with C more significant,
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143 * so that bits 55 to 28 of the word are bits 27 to 0 of C, and bits 27 to
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144 * 0 of the word are bits 27 to 0 of D). The output contains the following
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145 * bits of this 56-bit input word (listed in order MSB to LSB of output).
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146 *
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147 * 42 39 45 32 55 51 53 28 41 50 35 46 33 37 44 52 30 48 40 49 29 36 43 54
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148 * 15 4 25 19 9 1 26 16 5 11 23 8 12 7 17 0 22 3 10 14 6 20 27 24
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149 */
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150
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151 /*
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152 * Implementation details
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153 * ----------------------
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154 *
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155 * If you look at the code in this module, you'll find it looks
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156 * nothing _like_ the above algorithm. Here I explain the
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157 * differences...
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158 *
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159 * Key setup has not been heavily optimised here. We are not
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160 * concerned with key agility: we aren't codebreakers. We don't
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161 * mind a little delay (and it really is a little one; it may be a
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162 * factor of five or so slower than it could be but it's still not
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163 * an appreciable length of time) while setting up. The only tweaks
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164 * in the key setup are ones which change the format of the key
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165 * schedule to speed up the actual encryption. I'll describe those
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166 * below.
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167 *
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168 * The first and most obvious optimisation is the S-boxes. Since
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169 * each S-box always targets the same four bits in the final 32-bit
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170 * word, so the output from (for example) S-box 0 must always be
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171 * shifted left 28 bits, we can store the already-shifted outputs
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172 * in the lookup tables. This reduces lookup-and-shift to lookup,
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173 * so the S-box step is now just a question of ORing together eight
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174 * table lookups.
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175 *
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176 * The permutation P is just a bit order change; it's invariant
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177 * with respect to OR, in that P(x)|P(y) = P(x|y). Therefore, we
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178 * can apply P to every entry of the S-box tables and then we don't
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179 * have to do it in the code of f(). This yields a set of tables
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180 * which might be called SP-boxes.
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181 *
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182 * The bit-selection function E is our next target. Note that E is
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183 * immediately followed by the operation of splitting into 6-bit
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184 * chunks. Examining the 6-bit chunks coming out of E we notice
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185 * they're all contiguous within the word (speaking cyclically -
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186 * the end two wrap round); so we can extract those bit strings
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187 * individually rather than explicitly running E. This would yield
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188 * code such as
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189 *
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190 * y |= SPboxes[0][ (rotl(R, 5) ^ top6bitsofK) & 0x3F ];
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191 * t |= SPboxes[1][ (rotl(R,11) ^ next6bitsofK) & 0x3F ];
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192 *
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193 * and so on; and the key schedule preparation would have to
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194 * provide each 6-bit chunk separately.
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195 *
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196 * Really we'd like to XOR in the key schedule element before
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197 * looking up bit strings in R. This we can't do, naively, because
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198 * the 6-bit strings we want overlap. But look at the strings:
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199 *
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200 * 3322222222221111111111
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201 * bit 10987654321098765432109876543210
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202 *
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203 * box0 XXXXX X
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204 * box1 XXXXXX
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205 * box2 XXXXXX
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206 * box3 XXXXXX
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207 * box4 XXXXXX
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208 * box5 XXXXXX
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209 * box6 XXXXXX
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210 * box7 X XXXXX
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211 *
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212 * The bit strings we need to XOR in for boxes 0, 2, 4 and 6 don't
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213 * overlap with each other. Neither do the ones for boxes 1, 3, 5
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214 * and 7. So we could provide the key schedule in the form of two
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215 * words that we can separately XOR into R, and then every S-box
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216 * index is available as a (cyclically) contiguous 6-bit substring
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217 * of one or the other of the results.
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218 *
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219 * The comments in Eric Young's libdes implementation point out
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220 * that two of these bit strings require a rotation (rather than a
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221 * simple shift) to extract. It's unavoidable that at least _one_
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222 * must do; but we can actually run the whole inner algorithm (all
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223 * 16 rounds) rotated one bit to the left, so that what the `real'
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224 * DES description sees as L=0x80000001 we see as L=0x00000003.
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225 * This requires rotating all our SP-box entries one bit to the
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226 * left, and rotating each word of the key schedule elements one to
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227 * the left, and rotating L and R one bit left just after IP and
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228 * one bit right again just before FP. And in each round we convert
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229 * a rotate into a shift, so we've saved a few per cent.
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230 *
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231 * That's about it for the inner loop; the SP-box tables as listed
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232 * below are what I've described here (the original S value,
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233 * shifted to its final place in the input to P, run through P, and
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234 * then rotated one bit left). All that remains is to optimise the
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235 * initial permutation IP.
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236 *
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237 * IP is not an arbitrary permutation. It has the nice property
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238 * that if you take any bit number, write it in binary (6 bits),
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239 * permute those 6 bits and invert some of them, you get the final
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240 * position of that bit. Specifically, the bit whose initial
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241 * position is given (in binary) as fedcba ends up in position
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242 * AcbFED (where a capital letter denotes the inverse of a bit).
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243 *
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244 * We have the 64-bit data in two 32-bit words L and R, where bits
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245 * in L are those with f=1 and bits in R are those with f=0. We
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246 * note that we can do a simple transformation: suppose we exchange
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247 * the bits with f=1,c=0 and the bits with f=0,c=1. This will cause
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248 * the bit fedcba to be in position cedfba - we've `swapped' bits c
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249 * and f in the position of each bit!
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250 *
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251 * Better still, this transformation is easy. In the example above,
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252 * bits in L with c=0 are bits 0x0F0F0F0F, and those in R with c=1
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253 * are 0xF0F0F0F0. So we can do
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254 *
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255 * difference = ((R >> 4) ^ L) & 0x0F0F0F0F
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256 * R ^= (difference << 4)
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257 * L ^= difference
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258 *
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259 * to perform the swap. Let's denote this by bitswap(4,0x0F0F0F0F).
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260 * Also, we can invert the bit at the top just by exchanging L and
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261 * R. So in a few swaps and a few of these bit operations we can
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262 * do:
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263 *
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264 * Initially the position of bit fedcba is fedcba
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265 * Swap L with R to make it Fedcba
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266 * Perform bitswap( 4,0x0F0F0F0F) to make it cedFba
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267 * Perform bitswap(16,0x0000FFFF) to make it ecdFba
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268 * Swap L with R to make it EcdFba
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269 * Perform bitswap( 2,0x33333333) to make it bcdFEa
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270 * Perform bitswap( 8,0x00FF00FF) to make it dcbFEa
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271 * Swap L with R to make it DcbFEa
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272 * Perform bitswap( 1,0x55555555) to make it acbFED
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273 * Swap L with R to make it AcbFED
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274 *
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275 * (In the actual code the four swaps are implicit: R and L are
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276 * simply used the other way round in the first, second and last
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277 * bitswap operations.)
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278 *
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279 * The final permutation is just the inverse of IP, so it can be
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280 * performed by a similar set of operations.
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281 */
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282
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283 struct des_context {
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284 uint32_t k0246[16], k1357[16];
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285 };
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286
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287 #define rotl(x, c) ( (x << c) | (x >> (32-c)) )
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288 #define rotl28(x, c) ( ( (x << c) | (x >> (28-c)) ) & 0x0FFFFFFF)
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289
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290 static uint32_t bitsel(uint32_t * input, const int *bitnums, int size)
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291 {
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292 uint32_t ret = 0;
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293 while (size--) {
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294 int bitpos = *bitnums++;
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295 ret <<= 1;
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296 if (bitpos >= 0)
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297 ret |= 1 & (input[bitpos / 32] >> (bitpos % 32));
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298 }
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299 return ret;
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300 }
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301
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302 static inline void des_key_setup(uint32_t key_msw, uint32_t key_lsw,
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303 struct des_context *sched)
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304 {
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305 /* Tables are modified to work with 56-bit key */
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306 static const int PC1_Cbits[] = {
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307 6, 13, 20, 27, 34, 41, 48, 55, 5, 12, 19, 26, 33, 40,
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308 47, 54, 4, 11, 18, 25, 32, 39, 46, 53, 3, 10, 17, 24
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309 };
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310 static const int PC1_Dbits[] = {
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311 0, 7, 14, 21, 28, 35, 42, 49, 1, 8, 15, 22, 29, 36,
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312 43, 50, 2, 9, 16, 23, 30, 37, 44, 51, 31, 38, 45, 52
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313 };
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314 /*
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315 * The bit numbers in the two lists below don't correspond to
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316 * the ones in the above description of PC2, because in the
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317 * above description C and D are concatenated so `bit 28' means
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318 * bit 0 of C. In this implementation we're using the standard
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319 * `bitsel' function above and C is in the second word, so bit
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320 * 0 of C is addressed by writing `32' here.
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321 */
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322 static const int PC2_0246[] = {
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323 49, 36, 59, 55, -1, -1, 37, 41, 48, 56, 34, 52, -1, -1, 15, 4,
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324 25, 19, 9, 1, -1, -1, 12, 7, 17, 0, 22, 3, -1, -1, 46, 43
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325 };
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326 static const int PC2_1357[] = {
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327 -1, -1, 57, 32, 45, 54, 39, 50, -1, -1, 44, 53, 33, 40, 47, 58,
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328 -1, -1, 26, 16, 5, 11, 23, 8, -1, -1, 10, 14, 6, 20, 27, 24
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329 };
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330 static const int leftshifts[] = {
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331 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
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332 };
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333
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334 uint32_t C, D;
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335 uint32_t buf[2];
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336 int i;
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337
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338 buf[0] = key_lsw;
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339 buf[1] = key_msw;
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340
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341 C = bitsel(buf, PC1_Cbits, 28);
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342 D = bitsel(buf, PC1_Dbits, 28);
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343
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344 for (i = 0; i < 16; i++) {
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345 C = rotl28(C, leftshifts[i]);
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346 D = rotl28(D, leftshifts[i]);
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347 buf[0] = D;
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348 buf[1] = C;
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349 sched->k0246[i] = bitsel(buf, PC2_0246, 32);
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350 sched->k1357[i] = bitsel(buf, PC2_1357, 32);
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351 }
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352 }
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353
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354 static const uint32_t SPboxes[8][64] = {
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355 {0x01010400, 0x00000000, 0x00010000, 0x01010404,
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356 0x01010004, 0x00010404, 0x00000004, 0x00010000,
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357 0x00000400, 0x01010400, 0x01010404, 0x00000400,
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358 0x01000404, 0x01010004, 0x01000000, 0x00000004,
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359 0x00000404, 0x01000400, 0x01000400, 0x00010400,
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360 0x00010400, 0x01010000, 0x01010000, 0x01000404,
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361 0x00010004, 0x01000004, 0x01000004, 0x00010004,
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362 0x00000000, 0x00000404, 0x00010404, 0x01000000,
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diff changeset
363 0x00010000, 0x01010404, 0x00000004, 0x01010000,
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364 0x01010400, 0x01000000, 0x01000000, 0x00000400,
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Timo Sirainen <tss@iki.fi>
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365 0x01010004, 0x00010000, 0x00010400, 0x01000004,
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366 0x00000400, 0x00000004, 0x01000404, 0x00010404,
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367 0x01010404, 0x00010004, 0x01010000, 0x01000404,
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Timo Sirainen <tss@iki.fi>
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diff changeset
368 0x01000004, 0x00000404, 0x00010404, 0x01010400,
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diff changeset
369 0x00000404, 0x01000400, 0x01000400, 0x00000000,
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Timo Sirainen <tss@iki.fi>
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370 0x00010004, 0x00010400, 0x00000000, 0x01010004},
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diff changeset
371
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diff changeset
372 {0x80108020, 0x80008000, 0x00008000, 0x00108020,
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373 0x00100000, 0x00000020, 0x80100020, 0x80008020,
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diff changeset
374 0x80000020, 0x80108020, 0x80108000, 0x80000000,
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diff changeset
375 0x80008000, 0x00100000, 0x00000020, 0x80100020,
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Timo Sirainen <tss@iki.fi>
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diff changeset
376 0x00108000, 0x00100020, 0x80008020, 0x00000000,
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diff changeset
377 0x80000000, 0x00008000, 0x00108020, 0x80100000,
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diff changeset
378 0x00100020, 0x80000020, 0x00000000, 0x00108000,
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Timo Sirainen <tss@iki.fi>
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diff changeset
379 0x00008020, 0x80108000, 0x80100000, 0x00008020,
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Timo Sirainen <tss@iki.fi>
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diff changeset
380 0x00000000, 0x00108020, 0x80100020, 0x00100000,
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diff changeset
381 0x80008020, 0x80100000, 0x80108000, 0x00008000,
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diff changeset
382 0x80100000, 0x80008000, 0x00000020, 0x80108020,
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diff changeset
383 0x00108020, 0x00000020, 0x00008000, 0x80000000,
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
384 0x00008020, 0x80108000, 0x00100000, 0x80000020,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
385 0x00100020, 0x80008020, 0x80000020, 0x00100020,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
386 0x00108000, 0x00000000, 0x80008000, 0x00008020,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
387 0x80000000, 0x80100020, 0x80108020, 0x00108000},
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388
4378
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diff changeset
389 {0x00000208, 0x08020200, 0x00000000, 0x08020008,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
390 0x08000200, 0x00000000, 0x00020208, 0x08000200,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
391 0x00020008, 0x08000008, 0x08000008, 0x00020000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
392 0x08020208, 0x00020008, 0x08020000, 0x00000208,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
393 0x08000000, 0x00000008, 0x08020200, 0x00000200,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
394 0x00020200, 0x08020000, 0x08020008, 0x00020208,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
395 0x08000208, 0x00020200, 0x00020000, 0x08000208,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
396 0x00000008, 0x08020208, 0x00000200, 0x08000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
397 0x08020200, 0x08000000, 0x00020008, 0x00000208,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
398 0x00020000, 0x08020200, 0x08000200, 0x00000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
399 0x00000200, 0x00020008, 0x08020208, 0x08000200,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
400 0x08000008, 0x00000200, 0x00000000, 0x08020008,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
401 0x08000208, 0x00020000, 0x08000000, 0x08020208,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
402 0x00000008, 0x00020208, 0x00020200, 0x08000008,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
403 0x08020000, 0x08000208, 0x00000208, 0x08020000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
404 0x00020208, 0x00000008, 0x08020008, 0x00020200},
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
405
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
406 {0x00802001, 0x00002081, 0x00002081, 0x00000080,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
407 0x00802080, 0x00800081, 0x00800001, 0x00002001,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
408 0x00000000, 0x00802000, 0x00802000, 0x00802081,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
409 0x00000081, 0x00000000, 0x00800080, 0x00800001,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
410 0x00000001, 0x00002000, 0x00800000, 0x00802001,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
411 0x00000080, 0x00800000, 0x00002001, 0x00002080,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
412 0x00800081, 0x00000001, 0x00002080, 0x00800080,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
413 0x00002000, 0x00802080, 0x00802081, 0x00000081,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
414 0x00800080, 0x00800001, 0x00802000, 0x00802081,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
415 0x00000081, 0x00000000, 0x00000000, 0x00802000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
416 0x00002080, 0x00800080, 0x00800081, 0x00000001,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
417 0x00802001, 0x00002081, 0x00002081, 0x00000080,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
418 0x00802081, 0x00000081, 0x00000001, 0x00002000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
419 0x00800001, 0x00002001, 0x00802080, 0x00800081,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
420 0x00002001, 0x00002080, 0x00800000, 0x00802001,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
421 0x00000080, 0x00800000, 0x00002000, 0x00802080},
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
422
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
423 {0x00000100, 0x02080100, 0x02080000, 0x42000100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
424 0x00080000, 0x00000100, 0x40000000, 0x02080000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
425 0x40080100, 0x00080000, 0x02000100, 0x40080100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
426 0x42000100, 0x42080000, 0x00080100, 0x40000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
427 0x02000000, 0x40080000, 0x40080000, 0x00000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
428 0x40000100, 0x42080100, 0x42080100, 0x02000100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
429 0x42080000, 0x40000100, 0x00000000, 0x42000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
430 0x02080100, 0x02000000, 0x42000000, 0x00080100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
431 0x00080000, 0x42000100, 0x00000100, 0x02000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
432 0x40000000, 0x02080000, 0x42000100, 0x40080100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
433 0x02000100, 0x40000000, 0x42080000, 0x02080100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
434 0x40080100, 0x00000100, 0x02000000, 0x42080000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
435 0x42080100, 0x00080100, 0x42000000, 0x42080100,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
436 0x02080000, 0x00000000, 0x40080000, 0x42000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
437 0x00080100, 0x02000100, 0x40000100, 0x00080000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
438 0x00000000, 0x40080000, 0x02080100, 0x40000100},
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
439
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
440 {0x20000010, 0x20400000, 0x00004000, 0x20404010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
441 0x20400000, 0x00000010, 0x20404010, 0x00400000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
442 0x20004000, 0x00404010, 0x00400000, 0x20000010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
443 0x00400010, 0x20004000, 0x20000000, 0x00004010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
444 0x00000000, 0x00400010, 0x20004010, 0x00004000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
445 0x00404000, 0x20004010, 0x00000010, 0x20400010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
446 0x20400010, 0x00000000, 0x00404010, 0x20404000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
447 0x00004010, 0x00404000, 0x20404000, 0x20000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
448 0x20004000, 0x00000010, 0x20400010, 0x00404000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
449 0x20404010, 0x00400000, 0x00004010, 0x20000010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
450 0x00400000, 0x20004000, 0x20000000, 0x00004010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
451 0x20000010, 0x20404010, 0x00404000, 0x20400000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
452 0x00404010, 0x20404000, 0x00000000, 0x20400010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
453 0x00000010, 0x00004000, 0x20400000, 0x00404010,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
454 0x00004000, 0x00400010, 0x20004010, 0x00000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
455 0x20404000, 0x20000000, 0x00400010, 0x20004010},
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
456
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
457 {0x00200000, 0x04200002, 0x04000802, 0x00000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
458 0x00000800, 0x04000802, 0x00200802, 0x04200800,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
459 0x04200802, 0x00200000, 0x00000000, 0x04000002,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
460 0x00000002, 0x04000000, 0x04200002, 0x00000802,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
461 0x04000800, 0x00200802, 0x00200002, 0x04000800,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
462 0x04000002, 0x04200000, 0x04200800, 0x00200002,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
463 0x04200000, 0x00000800, 0x00000802, 0x04200802,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
464 0x00200800, 0x00000002, 0x04000000, 0x00200800,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
465 0x04000000, 0x00200800, 0x00200000, 0x04000802,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
466 0x04000802, 0x04200002, 0x04200002, 0x00000002,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
467 0x00200002, 0x04000000, 0x04000800, 0x00200000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
468 0x04200800, 0x00000802, 0x00200802, 0x04200800,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
469 0x00000802, 0x04000002, 0x04200802, 0x04200000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
470 0x00200800, 0x00000000, 0x00000002, 0x04200802,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
471 0x00000000, 0x00200802, 0x04200000, 0x00000800,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
472 0x04000002, 0x04000800, 0x00000800, 0x00200002},
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
473
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
474 {0x10001040, 0x00001000, 0x00040000, 0x10041040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
475 0x10000000, 0x10001040, 0x00000040, 0x10000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
476 0x00040040, 0x10040000, 0x10041040, 0x00041000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
477 0x10041000, 0x00041040, 0x00001000, 0x00000040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
478 0x10040000, 0x10000040, 0x10001000, 0x00001040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
479 0x00041000, 0x00040040, 0x10040040, 0x10041000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
480 0x00001040, 0x00000000, 0x00000000, 0x10040040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
481 0x10000040, 0x10001000, 0x00041040, 0x00040000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
482 0x00041040, 0x00040000, 0x10041000, 0x00001000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
483 0x00000040, 0x10040040, 0x00001000, 0x00041040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
484 0x10001000, 0x00000040, 0x10000040, 0x10040000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
485 0x10040040, 0x10000000, 0x00040000, 0x10001040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
486 0x00000000, 0x10041040, 0x00040040, 0x10000040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
487 0x10040000, 0x10001000, 0x10001040, 0x00000000,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
488 0x10041040, 0x00041000, 0x00041000, 0x00001040,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
489 0x00001040, 0x00040040, 0x10000000, 0x10041000}
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
490 };
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
491
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
492 #define f(R, K0246, K1357) (\
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
493 s0246 = R ^ K0246, \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
494 s1357 = R ^ K1357, \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
495 s0246 = rotl(s0246, 28), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
496 SPboxes[0] [(s0246 >> 24) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
497 SPboxes[1] [(s1357 >> 24) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
498 SPboxes[2] [(s0246 >> 16) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
499 SPboxes[3] [(s1357 >> 16) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
500 SPboxes[4] [(s0246 >> 8) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
501 SPboxes[5] [(s1357 >> 8) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
502 SPboxes[6] [(s0246 ) & 0x3F] | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
503 SPboxes[7] [(s1357 ) & 0x3F])
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
504
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
505 #define bitswap(L, R, n, mask) (\
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
506 swap = mask & ( (R >> n) ^ L ), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
507 R ^= swap << n, \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
508 L ^= swap)
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
509
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
510 /* Initial permutation */
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
511 #define IP(L, R) (\
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
512 bitswap(R, L, 4, 0x0F0F0F0F), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
513 bitswap(R, L, 16, 0x0000FFFF), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
514 bitswap(L, R, 2, 0x33333333), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
515 bitswap(L, R, 8, 0x00FF00FF), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
516 bitswap(R, L, 1, 0x55555555))
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
517
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
518 /* Final permutation */
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
519 #define FP(L, R) (\
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
520 bitswap(R, L, 1, 0x55555555), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
521 bitswap(L, R, 8, 0x00FF00FF), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
522 bitswap(L, R, 2, 0x33333333), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
523 bitswap(R, L, 16, 0x0000FFFF), \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
524 bitswap(R, L, 4, 0x0F0F0F0F))
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
525
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
526 static void
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
527 des_encipher(uint32_t *output, uint32_t L, uint32_t R,
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
528 struct des_context *sched)
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Timo Sirainen <tss@iki.fi>
parents: 2377
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529 {
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parents: 2377
diff changeset
530 uint32_t swap, s0246, s1357;
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
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parents: 2377
diff changeset
531
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
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parents: 2377
diff changeset
532 IP(L, R);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
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diff changeset
533
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
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534 L = rotl(L, 1);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
535 R = rotl(R, 1);
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
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parents:
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536
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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537 L ^= f(R, sched->k0246[0], sched->k1357[0]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
538 R ^= f(L, sched->k0246[1], sched->k1357[1]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
539 L ^= f(R, sched->k0246[2], sched->k1357[2]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
540 R ^= f(L, sched->k0246[3], sched->k1357[3]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
541 L ^= f(R, sched->k0246[4], sched->k1357[4]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
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542 R ^= f(L, sched->k0246[5], sched->k1357[5]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
543 L ^= f(R, sched->k0246[6], sched->k1357[6]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
544 R ^= f(L, sched->k0246[7], sched->k1357[7]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
545 L ^= f(R, sched->k0246[8], sched->k1357[8]);
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
546 R ^= f(L, sched->k0246[9], sched->k1357[9]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
547 L ^= f(R, sched->k0246[10], sched->k1357[10]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
548 R ^= f(L, sched->k0246[11], sched->k1357[11]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
549 L ^= f(R, sched->k0246[12], sched->k1357[12]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
550 R ^= f(L, sched->k0246[13], sched->k1357[13]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
551 L ^= f(R, sched->k0246[14], sched->k1357[14]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
552 R ^= f(L, sched->k0246[15], sched->k1357[15]);
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
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diff changeset
553
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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554 L = rotl(L, 31);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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555 R = rotl(R, 31);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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556
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
557 swap = L;
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
558 L = R;
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
559 R = swap;
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
560
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
561 FP(L, R);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
562
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
563 output[0] = L;
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
564 output[1] = R;
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8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
565 }
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
566
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
567 #define GET_32BIT_MSB_FIRST(cp) \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
568 (((unsigned long)(unsigned char)(cp)[3]) | \
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
569 ((unsigned long)(unsigned char)(cp)[2] << 8) | \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
570 ((unsigned long)(unsigned char)(cp)[1] << 16) | \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
571 ((unsigned long)(unsigned char)(cp)[0] << 24))
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
572
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
573 #define PUT_32BIT_MSB_FIRST(cp, value) do { \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
574 (cp)[3] = (value); \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
575 (cp)[2] = (value) >> 8; \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
576 (cp)[1] = (value) >> 16; \
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
577 (cp)[0] = (value) >> 24; } while (0)
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Timo Sirainen <tss@iki.fi>
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578
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
579 static inline void
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
580 des_cbc_encrypt(unsigned char *dest, const unsigned char *src,
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
581 struct des_context *sched)
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
582 {
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
583 uint32_t out[2], L, R;
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
584
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
585 L = GET_32BIT_MSB_FIRST(src);
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
586 R = GET_32BIT_MSB_FIRST(src + 4);
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
587 des_encipher(out, L, R, sched);
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Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
588 PUT_32BIT_MSB_FIRST(dest, out[0]);
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
589 PUT_32BIT_MSB_FIRST(dest + 4, out[1]);
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
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590 }
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
591
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
592 unsigned char *
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
593 deshash(unsigned char *dst, const unsigned char *key,
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
594 const unsigned char *src)
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
595 {
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
596 struct des_context ctx;
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
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diff changeset
597
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
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diff changeset
598 des_key_setup(GET_32BIT_MSB_FIRST(key) >> 8,
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
Timo Sirainen <tss@iki.fi>
parents: 2377
diff changeset
599 GET_32BIT_MSB_FIRST(key + 3), &ctx);
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
600
4378
15d3681fdecc Replaced LGPL licensed DES implementation with MIT licensed one
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parents: 2377
diff changeset
601 des_cbc_encrypt(dst, src, &ctx);
2377
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
602
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
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parents:
diff changeset
603 return dst;
8f5be0be3199 NTLM authentication. Patch by Andrey Panin
Timo Sirainen <tss@iki.fi>
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604 }