Mercurial > hg > early-roguelike
annotate xrogue/xcrypt.c @ 164:49af2fd0bb0c
Move some autotools files to where configure can find them.
rogue5 uses config.guess and config.sub to find the canonical system
names. The configure script expects them to be in the same directory
as install-sh. So they have been relocated to the top level.
This is a quick and dirty fix. The eventual plan is to relocate them
to /dev/null.
I also suspect they should be used to set HOST, not TARGET. Rogue is
not a cross-compiler.
author | John "Elwin" Edwards |
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date | Tue, 16 Jun 2015 11:44:49 -0400 |
parents | e6179860cb76 |
children | 3def5e487faa |
rev | line source |
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1 /* |
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2 * FreeSec: libcrypt |
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3 * |
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4 * Copyright (C) 1994 David Burren |
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5 * All rights reserved. |
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6 * |
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7 * Redistribution and use in source and binary forms, with or without |
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8 * modification, are permitted provided that the following conditions |
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9 * are met: |
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10 * 1. Redistributions of source code must retain the above copyright |
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11 * notice, this list of conditions and the following disclaimer. |
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12 * 2. Redistributions in binary form must reproduce the above copyright |
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13 * notice, this list of conditions and the following disclaimer in the |
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14 * documentation and/or other materials provided with the distribution. |
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15 * 3. Neither the name(s) of the author(s) nor the names of other contributors |
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16 * may be used to endorse or promote products derived from this software |
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17 * without specific prior written permission. |
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18 * |
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19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND |
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20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE |
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23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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29 * SUCH DAMAGE. |
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30 * |
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31 * |
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32 * This is an original implementation of the DES and the crypt(3) interfaces |
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33 * by David Burren <davidb@werj.com.au>. |
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34 * |
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35 * An excellent reference on the underlying algorithm (and related |
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36 * algorithms) is: |
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37 * |
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38 * B. Schneier, Applied Cryptography: protocols, algorithms, |
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39 * and source code in C, John Wiley & Sons, 1994. |
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40 * |
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41 * Note that in that book's description of DES the lookups for the initial, |
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42 * pbox, and final permutations are inverted (this has been brought to the |
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43 * attention of the author). A list of errata for this book has been |
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44 * posted to the sci.crypt newsgroup by the author and is available for FTP. |
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45 * |
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46 * NOTE: |
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47 * This file has a static version of des_setkey() so that crypt.o exports |
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48 * only the crypt() interface. This is required to make binaries linked |
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49 * against crypt.o exportable or re-exportable from the USA. |
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50 */ |
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51 |
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52 #include <sys/types.h> |
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53 #include <string.h> |
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54 |
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55 #define _PASSWORD_EFMT1 '_' |
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56 |
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57 static unsigned char IP[64] = { |
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58 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, |
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59 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, |
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60 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, |
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61 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7 |
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62 }; |
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63 |
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64 static unsigned char inv_key_perm[64]; |
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65 static unsigned char key_perm[56] = { |
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66 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, |
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67 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, |
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68 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, |
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69 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 |
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70 }; |
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71 |
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72 static unsigned char key_shifts[16] = { |
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73 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 |
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74 }; |
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75 |
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76 static unsigned char inv_comp_perm[56]; |
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77 static unsigned char comp_perm[48] = { |
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78 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, |
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79 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2, |
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80 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48, |
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81 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32 |
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82 }; |
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83 |
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84 /* |
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85 * No E box is used, as it's replaced by some ANDs, shifts, and ORs. |
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86 */ |
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87 |
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88 static unsigned char u_sbox[8][64]; |
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89 static unsigned char sbox[8][64] = { |
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90 { |
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91 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7, |
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92 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8, |
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93 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0, |
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94 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 |
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95 }, |
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96 { |
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97 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10, |
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98 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5, |
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99 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15, |
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100 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 |
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101 }, |
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102 { |
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103 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8, |
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104 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1, |
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105 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7, |
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106 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 |
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107 }, |
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108 { |
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109 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15, |
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110 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9, |
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111 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4, |
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112 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 |
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113 }, |
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114 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
115 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
116 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
117 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
118 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
119 }, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
120 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
121 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
122 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
123 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
124 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
125 }, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
126 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
127 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
128 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
129 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
130 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
131 }, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
132 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
133 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
134 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
135 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
136 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
137 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
138 }; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
139 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
140 static unsigned char un_pbox[32]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
141 static unsigned char pbox[32] = { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
142 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
143 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
144 }; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
145 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
146 static unsigned int bits32[32] = |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
147 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
148 0x80000000, 0x40000000, 0x20000000, 0x10000000, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
149 0x08000000, 0x04000000, 0x02000000, 0x01000000, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
150 0x00800000, 0x00400000, 0x00200000, 0x00100000, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
151 0x00080000, 0x00040000, 0x00020000, 0x00010000, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
152 0x00008000, 0x00004000, 0x00002000, 0x00001000, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
153 0x00000800, 0x00000400, 0x00000200, 0x00000100, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
154 0x00000080, 0x00000040, 0x00000020, 0x00000010, |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
155 0x00000008, 0x00000004, 0x00000002, 0x00000001 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
156 }; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
157 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
158 static unsigned char bits8[8] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
159 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
160 static unsigned int saltbits; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
161 static int old_salt; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
162 static unsigned int *bits28, *bits24; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
163 static unsigned char init_perm[64], final_perm[64]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
164 static unsigned int en_keysl[16], en_keysr[16]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
165 static unsigned int de_keysl[16], de_keysr[16]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
166 static int des_initialised = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
167 static unsigned char m_sbox[4][4096]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
168 static unsigned int psbox[4][256]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
169 static unsigned int ip_maskl[8][256], ip_maskr[8][256]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
170 static unsigned int fp_maskl[8][256], fp_maskr[8][256]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
171 static unsigned int key_perm_maskl[8][128], key_perm_maskr[8][128]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
172 static unsigned int comp_maskl[8][128], comp_maskr[8][128]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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173 static unsigned int old_rawkey0, old_rawkey1; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
174 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
175 static unsigned char ascii64[] = |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
176 "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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|
177 /* 0000000000111111111122222222223333333333444444444455555555556666 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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178 /* 0123456789012345678901234567890123456789012345678901234567890123 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
179 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
180 static __inline int |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
181 ascii_to_bin(ch) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
182 char ch; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
183 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
184 if (ch > 'z') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
185 return(0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
186 if (ch >= 'a') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
187 return(ch - 'a' + 38); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
188 if (ch > 'Z') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
189 return(0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
190 if (ch >= 'A') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
191 return(ch - 'A' + 12); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
192 if (ch > '9') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
193 return(0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
194 if (ch >= '.') |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
195 return(ch - '.'); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
196 return(0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
197 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
198 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
199 static void |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
200 des_init() |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
201 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
202 int i, j, b, k, inbit, obit; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
203 unsigned int *p, *il, *ir, *fl, *fr; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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204 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
205 old_rawkey0 = old_rawkey1 = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
206 saltbits = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
207 old_salt = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
208 bits24 = (bits28 = bits32 + 4) + 4; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
209 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
210 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
211 * Invert the S-boxes, reordering the input bits. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
212 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
213 for (i = 0; i < 8; i++) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
214 for (j = 0; j < 64; j++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
215 b = (j & 0x20) | ((j & 1) << 4) | ((j >> 1) & 0xf); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
216 u_sbox[i][j] = sbox[i][b]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
217 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
218 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
219 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
220 * Convert the inverted S-boxes into 4 arrays of 8 bits. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
221 * Each will handle 12 bits of the S-box input. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
222 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
223 for (b = 0; b < 4; b++) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
224 for (i = 0; i < 64; i++) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
225 for (j = 0; j < 64; j++) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
226 m_sbox[b][(i << 6) | j] = |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
227 (u_sbox[(b << 1)][i] << 4) | |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
228 u_sbox[(b << 1) + 1][j]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
229 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
230 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
231 * Set up the initial & final permutations into a useful form, and |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
232 * initialise the inverted key permutation. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
233 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
234 for (i = 0; i < 64; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
235 init_perm[final_perm[i] = IP[i] - 1] = i; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
236 inv_key_perm[i] = 255; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
237 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
238 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
239 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
240 * Invert the key permutation and initialise the inverted key |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
241 * compression permutation. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
242 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
243 for (i = 0; i < 56; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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244 inv_key_perm[key_perm[i] - 1] = i; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
245 inv_comp_perm[i] = 255; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
246 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
247 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
248 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
249 * Invert the key compression permutation. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
250 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
251 for (i = 0; i < 48; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
252 inv_comp_perm[comp_perm[i] - 1] = i; |
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parents:
diff
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|
253 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
254 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
255 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
256 * Set up the OR-mask arrays for the initial and final permutations, |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
257 * and for the key initial and compression permutations. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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258 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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|
259 for (k = 0; k < 8; k++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
260 for (i = 0; i < 256; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
261 *(il = &ip_maskl[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
262 *(ir = &ip_maskr[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
263 *(fl = &fp_maskl[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
264 *(fr = &fp_maskr[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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265 for (j = 0; j < 8; j++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
266 inbit = 8 * k + j; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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267 if (i & bits8[j]) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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268 if ((obit = init_perm[inbit]) < 32) |
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parents:
diff
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269 *il |= bits32[obit]; |
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parents:
diff
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|
270 else |
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parents:
diff
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|
271 *ir |= bits32[obit-32]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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272 if ((obit = final_perm[inbit]) < 32) |
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parents:
diff
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273 *fl |= bits32[obit]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
274 else |
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parents:
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275 *fr |= bits32[obit - 32]; |
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diff
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|
276 } |
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parents:
diff
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|
277 } |
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parents:
diff
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|
278 } |
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parents:
diff
changeset
|
279 for (i = 0; i < 128; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
280 *(il = &key_perm_maskl[k][i]) = 0; |
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parents:
diff
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|
281 *(ir = &key_perm_maskr[k][i]) = 0; |
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parents:
diff
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|
282 for (j = 0; j < 7; j++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
283 inbit = 8 * k + j; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
284 if (i & bits8[j + 1]) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
285 if ((obit = inv_key_perm[inbit]) == 255) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
286 continue; |
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John "Elwin" Edwards
parents:
diff
changeset
|
287 if (obit < 28) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
288 *il |= bits28[obit]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
289 else |
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parents:
diff
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|
290 *ir |= bits28[obit - 28]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
291 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
292 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
293 *(il = &comp_maskl[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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294 *(ir = &comp_maskr[k][i]) = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
295 for (j = 0; j < 7; j++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
296 inbit = 7 * k + j; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
297 if (i & bits8[j + 1]) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
298 if ((obit=inv_comp_perm[inbit]) == 255) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
299 continue; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
300 if (obit < 24) |
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parents:
diff
changeset
|
301 *il |= bits24[obit]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
302 else |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
303 *ir |= bits24[obit - 24]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
304 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
305 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
306 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
307 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
308 |
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John "Elwin" Edwards
parents:
diff
changeset
|
309 /* |
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John "Elwin" Edwards
parents:
diff
changeset
|
310 * Invert the P-box permutation, and convert into OR-masks for |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
311 * handling the output of the S-box arrays setup above. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
312 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
313 for (i = 0; i < 32; i++) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
314 un_pbox[pbox[i] - 1] = i; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
315 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
316 for (b = 0; b < 4; b++) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
317 for (i = 0; i < 256; i++) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
318 *(p = &psbox[b][i]) = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
319 for (j = 0; j < 8; j++) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
320 if (i & bits8[j]) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
321 *p |= bits32[un_pbox[8 * b + j]]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
322 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
323 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
324 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
325 des_initialised = 1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
326 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
327 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
328 static void |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
329 setup_salt(salt) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
330 int salt; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
331 { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
332 unsigned int obit, saltbit; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
333 int i; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
334 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
335 if (salt == old_salt) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
336 return; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
337 old_salt = salt; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
338 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
339 saltbits = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
340 saltbit = 1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
341 obit = 0x800000; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
342 for (i = 0; i < 24; i++) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
343 if (salt & saltbit) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
344 saltbits |= obit; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
345 saltbit <<= 1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
346 obit >>= 1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
347 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
348 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
349 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
350 static int |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
351 des_setkey(key) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
352 const char *key; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
353 { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
354 unsigned int k0, k1, rawkey0, rawkey1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
355 int shifts, round; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
356 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
357 if (!des_initialised) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
358 des_init(); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
359 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
360 rawkey0 = md_ntohl(*(unsigned int *) key); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
361 rawkey1 = md_ntohl(*(unsigned int *) (key + 4)); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
362 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
363 if ((rawkey0 | rawkey1) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
364 && rawkey0 == old_rawkey0 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
365 && rawkey1 == old_rawkey1) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
366 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
367 * Already setup for this key. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
368 * This optimisation fails on a zero key (which is weak and |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
369 * has bad parity anyway) in order to simplify the starting |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
370 * conditions. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
371 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
372 return(0); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
373 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
374 old_rawkey0 = rawkey0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
375 old_rawkey1 = rawkey1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
376 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
377 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
378 * Do key permutation and split into two 28-bit subkeys. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
379 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
380 k0 = key_perm_maskl[0][rawkey0 >> 25] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
381 | key_perm_maskl[1][(rawkey0 >> 17) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
382 | key_perm_maskl[2][(rawkey0 >> 9) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
383 | key_perm_maskl[3][(rawkey0 >> 1) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
384 | key_perm_maskl[4][rawkey1 >> 25] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
385 | key_perm_maskl[5][(rawkey1 >> 17) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
386 | key_perm_maskl[6][(rawkey1 >> 9) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
387 | key_perm_maskl[7][(rawkey1 >> 1) & 0x7f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
388 k1 = key_perm_maskr[0][rawkey0 >> 25] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
389 | key_perm_maskr[1][(rawkey0 >> 17) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
390 | key_perm_maskr[2][(rawkey0 >> 9) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
391 | key_perm_maskr[3][(rawkey0 >> 1) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
392 | key_perm_maskr[4][rawkey1 >> 25] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
393 | key_perm_maskr[5][(rawkey1 >> 17) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
394 | key_perm_maskr[6][(rawkey1 >> 9) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
395 | key_perm_maskr[7][(rawkey1 >> 1) & 0x7f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
396 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
397 * Rotate subkeys and do compression permutation. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
398 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
399 shifts = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
400 for (round = 0; round < 16; round++) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
401 unsigned int t0, t1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
402 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
403 shifts += key_shifts[round]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
404 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
405 t0 = (k0 << shifts) | (k0 >> (28 - shifts)); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
406 t1 = (k1 << shifts) | (k1 >> (28 - shifts)); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
407 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
408 de_keysl[15 - round] = |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
409 en_keysl[round] = comp_maskl[0][(t0 >> 21) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
410 | comp_maskl[1][(t0 >> 14) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
411 | comp_maskl[2][(t0 >> 7) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
412 | comp_maskl[3][t0 & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
413 | comp_maskl[4][(t1 >> 21) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
414 | comp_maskl[5][(t1 >> 14) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
415 | comp_maskl[6][(t1 >> 7) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
416 | comp_maskl[7][t1 & 0x7f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
417 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
418 de_keysr[15 - round] = |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
419 en_keysr[round] = comp_maskr[0][(t0 >> 21) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
420 | comp_maskr[1][(t0 >> 14) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
421 | comp_maskr[2][(t0 >> 7) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
422 | comp_maskr[3][t0 & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
423 | comp_maskr[4][(t1 >> 21) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
424 | comp_maskr[5][(t1 >> 14) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
425 | comp_maskr[6][(t1 >> 7) & 0x7f] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
426 | comp_maskr[7][t1 & 0x7f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
427 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
428 return(0); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
429 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
430 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
431 static int |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
432 do_des(l_in, r_in, l_out, r_out, count) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
433 unsigned int l_in, r_in, *l_out, *r_out; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
434 int count; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
435 { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
436 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
437 * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
438 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
439 unsigned int l, r, *kl, *kr, *kl1, *kr1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
440 unsigned int f = 0, r48l, r48r; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
441 int round; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
442 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
443 if (count == 0) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
444 return(1); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
445 } else if (count > 0) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
446 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
447 * Encrypting |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
448 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
449 kl1 = en_keysl; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
450 kr1 = en_keysr; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
451 } else { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
452 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
453 * Decrypting |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
454 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
455 count = -count; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
456 kl1 = de_keysl; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
457 kr1 = de_keysr; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
458 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
459 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
460 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
461 * Do initial permutation (IP). |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
462 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
463 l = ip_maskl[0][l_in >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
464 | ip_maskl[1][(l_in >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
465 | ip_maskl[2][(l_in >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
466 | ip_maskl[3][l_in & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
467 | ip_maskl[4][r_in >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
468 | ip_maskl[5][(r_in >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
469 | ip_maskl[6][(r_in >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
470 | ip_maskl[7][r_in & 0xff]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
471 r = ip_maskr[0][l_in >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
472 | ip_maskr[1][(l_in >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
473 | ip_maskr[2][(l_in >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
474 | ip_maskr[3][l_in & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
475 | ip_maskr[4][r_in >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
476 | ip_maskr[5][(r_in >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
477 | ip_maskr[6][(r_in >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
478 | ip_maskr[7][r_in & 0xff]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
479 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
480 while (count--) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
481 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
482 * Do each round. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
483 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
484 kl = kl1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
485 kr = kr1; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
486 round = 16; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
487 while (round--) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
488 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
489 * Expand R to 48 bits (simulate the E-box). |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
490 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
491 r48l = ((r & 0x00000001) << 23) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
492 | ((r & 0xf8000000) >> 9) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
493 | ((r & 0x1f800000) >> 11) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
494 | ((r & 0x01f80000) >> 13) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
495 | ((r & 0x001f8000) >> 15); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
496 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
497 r48r = ((r & 0x0001f800) << 7) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
498 | ((r & 0x00001f80) << 5) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
499 | ((r & 0x000001f8) << 3) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
500 | ((r & 0x0000001f) << 1) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
501 | ((r & 0x80000000) >> 31); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
502 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
503 * Do salting for crypt() and friends, and |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
504 * XOR with the permuted key. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
505 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
506 f = (r48l ^ r48r) & saltbits; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
507 r48l ^= f ^ *kl++; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
508 r48r ^= f ^ *kr++; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
509 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
510 * Do sbox lookups (which shrink it back to 32 bits) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
511 * and do the pbox permutation at the same time. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
512 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
513 f = psbox[0][m_sbox[0][r48l >> 12]] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
514 | psbox[1][m_sbox[1][r48l & 0xfff]] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
515 | psbox[2][m_sbox[2][r48r >> 12]] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
516 | psbox[3][m_sbox[3][r48r & 0xfff]]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
517 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
518 * Now that we've permuted things, complete f(). |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
519 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
520 f ^= l; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
521 l = r; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
522 r = f; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
523 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
524 r = l; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
525 l = f; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
526 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
527 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
528 * Do final permutation (inverse of IP). |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
529 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
530 *l_out = fp_maskl[0][l >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
531 | fp_maskl[1][(l >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
532 | fp_maskl[2][(l >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
533 | fp_maskl[3][l & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
534 | fp_maskl[4][r >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
535 | fp_maskl[5][(r >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
536 | fp_maskl[6][(r >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
537 | fp_maskl[7][r & 0xff]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
538 *r_out = fp_maskr[0][l >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
539 | fp_maskr[1][(l >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
540 | fp_maskr[2][(l >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
541 | fp_maskr[3][l & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
542 | fp_maskr[4][r >> 24] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
543 | fp_maskr[5][(r >> 16) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
544 | fp_maskr[6][(r >> 8) & 0xff] |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
545 | fp_maskr[7][r & 0xff]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
546 return(0); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
547 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
548 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
549 static int |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
550 des_cipher(in, out, salt, count) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
551 const char *in; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
552 char *out; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
553 int salt; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
554 int count; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
555 { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
556 unsigned int l_out, r_out, rawl, rawr; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
557 unsigned int x[2]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
558 int retval; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
559 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
560 if (!des_initialised) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
561 des_init(); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
562 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
563 setup_salt(salt); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
564 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
565 memcpy(x, in, sizeof x); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
566 rawl = md_ntohl(x[0]); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
567 rawr = md_ntohl(x[1]); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
568 retval = do_des(rawl, rawr, &l_out, &r_out, count); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
569 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
570 x[0] = md_htonl(l_out); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
571 x[1] = md_htonl(r_out); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
572 memcpy(out, x, sizeof x); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
573 return(retval); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
574 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
575 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
576 char * |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
577 xcrypt(key, setting) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
578 const char *key; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
579 const char *setting; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
580 { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
581 int i; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
582 unsigned int count, salt, l, r0, r1, keybuf[2]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
583 unsigned char *p, *q; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
584 static unsigned char output[21]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
585 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
586 if (!des_initialised) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
587 des_init(); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
588 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
589 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
590 * Copy the key, shifting each character up by one bit |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
591 * and padding with zeros. |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
592 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
593 q = (unsigned char *) keybuf; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
594 while ((q - (unsigned char *) keybuf) < sizeof(keybuf)) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
595 if ((*q++ = *key << 1)) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
596 key++; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
597 } |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
598 if (des_setkey((unsigned char *) keybuf)) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
599 return(NULL); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
600 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
601 if (*setting == _PASSWORD_EFMT1) { |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
602 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
603 * "new"-style: |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
604 * setting - underscore, 4 bytes of count, 4 bytes of salt |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
605 * key - unlimited characters |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
606 */ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
607 for (i = 1, count = 0; i < 5; i++) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
608 count |= ascii_to_bin(setting[i]) << (i - 1) * 6; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
609 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
610 for (i = 5, salt = 0; i < 9; i++) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
611 salt |= ascii_to_bin(setting[i]) << (i - 5) * 6; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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612 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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613 while (*key) { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
614 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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615 * Encrypt the key with itself. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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616 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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617 if (des_cipher((unsigned char*)keybuf, (unsigned char*)keybuf, 0, 1)) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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618 return(NULL); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
619 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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620 * And XOR with the next 8 characters of the key. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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621 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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622 q = (unsigned char *) keybuf; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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623 while (((q - (unsigned char *) keybuf) < sizeof(keybuf)) && |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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624 *key) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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625 *q++ ^= *key++ << 1; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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changeset
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626 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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627 if (des_setkey((unsigned char *) keybuf)) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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628 return(NULL); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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629 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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630 strncpy((char *)output, setting, 9); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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|
631 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
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632 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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633 * Double check that we weren't given a short setting. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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634 * If we were, the above code will probably have created |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
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635 * wierd values for count and salt, but we don't really care. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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636 * Just make sure the output string doesn't have an extra |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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|
637 * NUL in it. |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
638 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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|
639 output[9] = '\0'; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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640 p = output + strlen((const char *)output); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff
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641 } else { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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|
642 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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changeset
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643 * "old"-style: |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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644 * setting - 2 bytes of salt |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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645 * key - up to 8 characters |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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646 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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647 count = 25; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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|
648 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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649 salt = (ascii_to_bin(setting[1]) << 6) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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650 | ascii_to_bin(setting[0]); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
651 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
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652 output[0] = setting[0]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
653 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
654 * If the encrypted password that the salt was extracted from |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
655 * is only 1 character long, the salt will be corrupted. We |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
656 * need to ensure that the output string doesn't have an extra |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
657 * NUL in it! |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
658 */ |
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parents:
diff
changeset
|
659 output[1] = setting[1] ? setting[1] : output[0]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
660 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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661 p = output + 2; |
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parents:
diff
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|
662 } |
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parents:
diff
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|
663 setup_salt(salt); |
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John "Elwin" Edwards
parents:
diff
changeset
|
664 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
665 * Do it. |
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parents:
diff
changeset
|
666 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
667 if (do_des(0, 0, &r0, &r1, count)) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
668 return(NULL); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
669 /* |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
670 * Now encode the result... |
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parents:
diff
changeset
|
671 */ |
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parents:
diff
changeset
|
672 l = (r0 >> 8); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
673 *p++ = ascii64[(l >> 18) & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
674 *p++ = ascii64[(l >> 12) & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
675 *p++ = ascii64[(l >> 6) & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
676 *p++ = ascii64[l & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
677 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
678 l = (r0 << 16) | ((r1 >> 16) & 0xffff); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
679 *p++ = ascii64[(l >> 18) & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
680 *p++ = ascii64[(l >> 12) & 0x3f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
681 *p++ = ascii64[(l >> 6) & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
682 *p++ = ascii64[l & 0x3f]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
683 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
684 l = r1 << 2; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
685 *p++ = ascii64[(l >> 12) & 0x3f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
686 *p++ = ascii64[(l >> 6) & 0x3f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
687 *p++ = ascii64[l & 0x3f]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
688 *p = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
689 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
690 return((char *)output); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
691 } |