Mercurial Hosting > luan
annotate src/org/eclipse/jetty/util/security/UnixCrypt.java @ 945:89fe80dfab2c
remove asyncDispatch()
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Tue, 11 Oct 2016 20:53:06 -0600 |
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1 /* |
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2 * @(#)UnixCrypt.java 0.9 96/11/25 |
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3 * |
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4 * Copyright (c) 1996 Aki Yoshida. All rights reserved. |
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5 * |
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6 * Permission to use, copy, modify and distribute this software |
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7 * for non-commercial or commercial purposes and without fee is |
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8 * hereby granted provided that this copyright notice appears in |
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9 * all copies. |
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10 */ |
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11 |
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12 /** |
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13 * Unix crypt(3C) utility |
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14 * |
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15 * @version 0.9, 11/25/96 |
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16 * @author Aki Yoshida |
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17 */ |
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18 |
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19 /** |
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20 * modified April 2001 |
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21 * by Iris Van den Broeke, Daniel Deville |
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22 */ |
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23 |
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24 package org.eclipse.jetty.util.security; |
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25 |
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26 |
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27 /* ------------------------------------------------------------ */ |
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28 /** |
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29 * Unix Crypt. Implements the one way cryptography used by Unix systems for |
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30 * simple password protection. |
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31 * |
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32 * @version $Id: UnixCrypt.java,v 1.1 2005/10/05 14:09:14 janb Exp $ |
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33 * @author Greg Wilkins (gregw) |
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34 */ |
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35 public class UnixCrypt |
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36 { |
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37 |
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38 /* (mostly) Standard DES Tables from Tom Truscott */ |
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39 private static final byte[] IP = { /* initial permutation */ |
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40 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, |
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41 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7 }; |
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42 |
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43 /* The final permutation is the inverse of IP - no table is necessary */ |
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44 private static final byte[] ExpandTr = { /* expansion operation */ |
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45 32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, |
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46 28, 29, 30, 31, 32, 1 }; |
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47 |
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48 private static final byte[] PC1 = { /* permuted choice table 1 */ |
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49 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, |
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50 |
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51 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4 }; |
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52 |
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53 private static final byte[] Rotates = { /* PC1 rotation schedule */ |
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54 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 }; |
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55 |
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56 private static final byte[] PC2 = { /* permuted choice table 2 */ |
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57 9, 18, 14, 17, 11, 24, 1, 5, 22, 25, 3, 28, 15, 6, 21, 10, 35, 38, 23, 19, 12, 4, 26, 8, 43, 54, 16, 7, 27, 20, 13, 2, |
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58 |
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59 0, 0, 41, 52, 31, 37, 47, 55, 0, 0, 30, 40, 51, 45, 33, 48, 0, 0, 44, 49, 39, 56, 34, 53, 0, 0, 46, 42, 50, 36, 29, 32 }; |
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60 |
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61 private static final byte[][] S = { /* 48->32 bit substitution tables */ |
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62 /* S[1] */ |
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63 { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7, 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8, 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, |
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64 7, 3, 10, 5, 0, 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 }, |
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65 /* S[2] */ |
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66 { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10, 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5, 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, |
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67 6, 9, 3, 2, 15, 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 }, |
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68 /* S[3] */ |
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69 { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8, 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1, 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, |
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70 12, 5, 10, 14, 7, 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 }, |
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71 /* S[4] */ |
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72 { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15, 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9, 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, |
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73 14, 5, 2, 8, 4, 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 }, |
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74 /* S[5] */ |
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75 { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9, 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6, 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, |
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76 5, 6, 3, 0, 14, 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 }, |
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77 /* S[6] */ |
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78 { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11, 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8, 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, |
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79 10, 1, 13, 11, 6, 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 }, |
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80 /* S[7] */ |
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81 { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1, 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6, 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, |
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82 6, 8, 0, 5, 9, 2, 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 }, |
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83 /* S[8] */ |
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84 { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7, 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2, 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, |
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85 13, 15, 3, 5, 8, 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } }; |
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86 |
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87 private static final byte[] P32Tr = { /* 32-bit permutation function */ |
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88 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25 }; |
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89 |
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90 private static final byte[] CIFP = { /* |
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91 * compressed/interleaved |
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92 * permutation |
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93 */ |
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94 1, 2, 3, 4, 17, 18, 19, 20, 5, 6, 7, 8, 21, 22, 23, 24, 9, 10, 11, 12, 25, 26, 27, 28, 13, 14, 15, 16, 29, 30, 31, 32, |
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95 |
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96 33, 34, 35, 36, 49, 50, 51, 52, 37, 38, 39, 40, 53, 54, 55, 56, 41, 42, 43, 44, 57, 58, 59, 60, 45, 46, 47, 48, 61, 62, 63, 64 }; |
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97 |
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98 private static final byte[] ITOA64 = { /* 0..63 => ascii-64 */ |
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99 (byte) '.', (byte) '/', (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) 'A', |
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100 (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F', (byte) 'G', (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K', (byte) 'L', (byte) 'M', |
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101 (byte) 'N', (byte) 'O', (byte) 'P', (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U', (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', |
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102 (byte) 'Z', (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f', (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j', (byte) 'k', |
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103 (byte) 'l', (byte) 'm', (byte) 'n', (byte) 'o', (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't', (byte) 'u', (byte) 'v', (byte) 'w', |
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104 (byte) 'x', (byte) 'y', (byte) 'z' }; |
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105 |
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106 /* ===== Tables that are initialized at run time ==================== */ |
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107 |
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108 private static final byte[] A64TOI = new byte[128]; /* ascii-64 => 0..63 */ |
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109 |
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110 /* Initial key schedule permutation */ |
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111 private static final long[][] PC1ROT = new long[16][16]; |
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112 |
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113 /* Subsequent key schedule rotation permutations */ |
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114 private static final long[][][] PC2ROT = new long[2][16][16]; |
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115 |
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116 /* Initial permutation/expansion table */ |
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117 private static final long[][] IE3264 = new long[8][16]; |
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118 |
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119 /* Table that combines the S, P, and E operations. */ |
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120 private static final long[][] SPE = new long[8][64]; |
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121 |
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122 /* compressed/interleaved => final permutation table */ |
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123 private static final long[][] CF6464 = new long[16][16]; |
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124 |
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125 /* ==================================== */ |
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126 |
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127 static |
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128 { |
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129 byte[] perm = new byte[64]; |
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130 byte[] temp = new byte[64]; |
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131 |
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132 // inverse table. |
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133 for (int i = 0; i < 64; i++) |
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134 A64TOI[ITOA64[i]] = (byte) i; |
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135 |
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136 // PC1ROT - bit reverse, then PC1, then Rotate, then PC2 |
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137 for (int i = 0; i < 64; i++) |
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138 perm[i] = (byte) 0; |
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139 |
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140 for (int i = 0; i < 64; i++) |
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141 { |
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142 int k; |
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143 if ((k = PC2[i]) == 0) continue; |
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144 k += Rotates[0] - 1; |
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145 if ((k % 28) < Rotates[0]) k -= 28; |
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146 k = PC1[k]; |
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147 if (k > 0) |
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148 { |
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149 k--; |
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150 k = (k | 0x07) - (k & 0x07); |
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151 k++; |
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152 } |
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153 perm[i] = (byte) k; |
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154 } |
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155 init_perm(PC1ROT, perm, 8); |
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156 |
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157 // PC2ROT - PC2 inverse, then Rotate, then PC2 |
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158 for (int j = 0; j < 2; j++) |
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159 { |
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160 int k; |
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161 for (int i = 0; i < 64; i++) |
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162 perm[i] = temp[i] = 0; |
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163 for (int i = 0; i < 64; i++) |
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164 { |
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165 if ((k = PC2[i]) == 0) continue; |
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166 temp[k - 1] = (byte) (i + 1); |
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167 } |
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168 for (int i = 0; i < 64; i++) |
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169 { |
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170 if ((k = PC2[i]) == 0) continue; |
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171 k += j; |
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172 if ((k % 28) <= j) k -= 28; |
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173 perm[i] = temp[k]; |
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174 } |
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175 |
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176 init_perm(PC2ROT[j], perm, 8); |
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177 } |
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178 |
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179 // Bit reverse, intial permupation, expantion |
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180 for (int i = 0; i < 8; i++) |
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181 { |
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182 for (int j = 0; j < 8; j++) |
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183 { |
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184 int k = (j < 2) ? 0 : IP[ExpandTr[i * 6 + j - 2] - 1]; |
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185 if (k > 32) |
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186 k -= 32; |
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187 else if (k > 0) k--; |
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188 if (k > 0) |
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189 { |
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190 k--; |
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191 k = (k | 0x07) - (k & 0x07); |
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192 k++; |
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193 } |
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194 perm[i * 8 + j] = (byte) k; |
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195 } |
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196 } |
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197 |
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198 init_perm(IE3264, perm, 8); |
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199 |
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200 // Compression, final permutation, bit reverse |
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201 for (int i = 0; i < 64; i++) |
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202 { |
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203 int k = IP[CIFP[i] - 1]; |
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204 if (k > 0) |
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205 { |
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206 k--; |
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207 k = (k | 0x07) - (k & 0x07); |
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208 k++; |
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209 } |
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210 perm[k - 1] = (byte) (i + 1); |
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211 } |
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212 |
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213 init_perm(CF6464, perm, 8); |
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214 |
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215 // SPE table |
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216 for (int i = 0; i < 48; i++) |
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217 perm[i] = P32Tr[ExpandTr[i] - 1]; |
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218 for (int t = 0; t < 8; t++) |
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219 { |
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220 for (int j = 0; j < 64; j++) |
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221 { |
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222 int k = (((j >> 0) & 0x01) << 5) | (((j >> 1) & 0x01) << 3) |
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223 | (((j >> 2) & 0x01) << 2) |
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224 | (((j >> 3) & 0x01) << 1) |
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225 | (((j >> 4) & 0x01) << 0) |
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226 | (((j >> 5) & 0x01) << 4); |
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227 k = S[t][k]; |
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228 k = (((k >> 3) & 0x01) << 0) | (((k >> 2) & 0x01) << 1) | (((k >> 1) & 0x01) << 2) | (((k >> 0) & 0x01) << 3); |
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229 for (int i = 0; i < 32; i++) |
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230 temp[i] = 0; |
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231 for (int i = 0; i < 4; i++) |
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232 temp[4 * t + i] = (byte) ((k >> i) & 0x01); |
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233 long kk = 0; |
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234 for (int i = 24; --i >= 0;) |
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235 kk = ((kk << 1) | ((long) temp[perm[i] - 1]) << 32 | (temp[perm[i + 24] - 1])); |
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236 |
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237 SPE[t][j] = to_six_bit(kk); |
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238 } |
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239 } |
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240 } |
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241 |
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242 /** |
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243 * You can't call the constructer. |
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244 */ |
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245 private UnixCrypt() |
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246 { |
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247 } |
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248 |
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249 /** |
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250 * Returns the transposed and split code of a 24-bit code into a 4-byte |
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251 * code, each having 6 bits. |
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252 */ |
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253 private static int to_six_bit(int num) |
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254 { |
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255 return (((num << 26) & 0xfc000000) | ((num << 12) & 0xfc0000) | ((num >> 2) & 0xfc00) | ((num >> 16) & 0xfc)); |
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256 } |
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257 |
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258 /** |
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259 * Returns the transposed and split code of two 24-bit code into two 4-byte |
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260 * code, each having 6 bits. |
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261 */ |
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262 private static long to_six_bit(long num) |
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263 { |
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264 return (((num << 26) & 0xfc000000fc000000L) | ((num << 12) & 0xfc000000fc0000L) | ((num >> 2) & 0xfc000000fc00L) | ((num >> 16) & 0xfc000000fcL)); |
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265 } |
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266 |
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267 /** |
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268 * Returns the permutation of the given 64-bit code with the specified |
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269 * permutataion table. |
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270 */ |
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271 private static long perm6464(long c, long[][] p) |
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272 { |
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273 long out = 0L; |
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274 for (int i = 8; --i >= 0;) |
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275 { |
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276 int t = (int) (0x00ff & c); |
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277 c >>= 8; |
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278 long tp = p[i << 1][t & 0x0f]; |
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279 out |= tp; |
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280 tp = p[(i << 1) + 1][t >> 4]; |
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281 out |= tp; |
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282 } |
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283 return out; |
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284 } |
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285 |
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286 /** |
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287 * Returns the permutation of the given 32-bit code with the specified |
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288 * permutataion table. |
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289 */ |
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290 private static long perm3264(int c, long[][] p) |
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291 { |
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292 long out = 0L; |
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293 for (int i = 4; --i >= 0;) |
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294 { |
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295 int t = (0x00ff & c); |
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296 c >>= 8; |
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297 long tp = p[i << 1][t & 0x0f]; |
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298 out |= tp; |
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299 tp = p[(i << 1) + 1][t >> 4]; |
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300 out |= tp; |
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301 } |
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302 return out; |
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303 } |
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304 |
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305 /** |
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306 * Returns the key schedule for the given key. |
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307 */ |
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308 private static long[] des_setkey(long keyword) |
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309 { |
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310 long K = perm6464(keyword, PC1ROT); |
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311 long[] KS = new long[16]; |
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312 KS[0] = K & ~0x0303030300000000L; |
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313 |
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314 for (int i = 1; i < 16; i++) |
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315 { |
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316 KS[i] = K; |
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317 K = perm6464(K, PC2ROT[Rotates[i] - 1]); |
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318 |
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319 KS[i] = K & ~0x0303030300000000L; |
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320 } |
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321 return KS; |
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322 } |
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323 |
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324 /** |
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325 * Returns the DES encrypted code of the given word with the specified |
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326 * environment. |
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327 */ |
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328 private static long des_cipher(long in, int salt, int num_iter, long[] KS) |
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329 { |
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330 salt = to_six_bit(salt); |
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331 long L = in; |
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332 long R = L; |
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333 L &= 0x5555555555555555L; |
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334 R = (R & 0xaaaaaaaa00000000L) | ((R >> 1) & 0x0000000055555555L); |
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335 L = ((((L << 1) | (L << 32)) & 0xffffffff00000000L) | ((R | (R >> 32)) & 0x00000000ffffffffL)); |
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336 |
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337 L = perm3264((int) (L >> 32), IE3264); |
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338 R = perm3264((int) (L & 0xffffffff), IE3264); |
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339 |
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340 while (--num_iter >= 0) |
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341 { |
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342 for (int loop_count = 0; loop_count < 8; loop_count++) |
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343 { |
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344 long kp; |
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345 long B; |
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346 long k; |
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347 |
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348 kp = KS[(loop_count << 1)]; |
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349 k = ((R >> 32) ^ R) & salt & 0xffffffffL; |
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350 k |= (k << 32); |
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351 B = (k ^ R ^ kp); |
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352 |
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353 L ^= (SPE[0][(int) ((B >> 58) & 0x3f)] ^ SPE[1][(int) ((B >> 50) & 0x3f)] |
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354 ^ SPE[2][(int) ((B >> 42) & 0x3f)] |
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355 ^ SPE[3][(int) ((B >> 34) & 0x3f)] |
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356 ^ SPE[4][(int) ((B >> 26) & 0x3f)] |
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357 ^ SPE[5][(int) ((B >> 18) & 0x3f)] |
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358 ^ SPE[6][(int) ((B >> 10) & 0x3f)] ^ SPE[7][(int) ((B >> 2) & 0x3f)]); |
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359 |
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360 kp = KS[(loop_count << 1) + 1]; |
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361 k = ((L >> 32) ^ L) & salt & 0xffffffffL; |
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362 k |= (k << 32); |
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363 B = (k ^ L ^ kp); |
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364 |
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365 R ^= (SPE[0][(int) ((B >> 58) & 0x3f)] ^ SPE[1][(int) ((B >> 50) & 0x3f)] |
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366 ^ SPE[2][(int) ((B >> 42) & 0x3f)] |
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367 ^ SPE[3][(int) ((B >> 34) & 0x3f)] |
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368 ^ SPE[4][(int) ((B >> 26) & 0x3f)] |
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369 ^ SPE[5][(int) ((B >> 18) & 0x3f)] |
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370 ^ SPE[6][(int) ((B >> 10) & 0x3f)] ^ SPE[7][(int) ((B >> 2) & 0x3f)]); |
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371 } |
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372 // swap L and R |
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373 L ^= R; |
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374 R ^= L; |
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375 L ^= R; |
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376 } |
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377 L = ((((L >> 35) & 0x0f0f0f0fL) | (((L & 0xffffffff) << 1) & 0xf0f0f0f0L)) << 32 | (((R >> 35) & 0x0f0f0f0fL) | (((R & 0xffffffff) << 1) & 0xf0f0f0f0L))); |
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378 |
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379 L = perm6464(L, CF6464); |
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380 |
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381 return L; |
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382 } |
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383 |
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384 /** |
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385 * Initializes the given permutation table with the mapping table. |
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386 */ |
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387 private static void init_perm(long[][] perm, byte[] p, int chars_out) |
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388 { |
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389 for (int k = 0; k < chars_out * 8; k++) |
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390 { |
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391 |
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392 int l = p[k] - 1; |
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393 if (l < 0) continue; |
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394 int i = l >> 2; |
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395 l = 1 << (l & 0x03); |
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396 for (int j = 0; j < 16; j++) |
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397 { |
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398 int s = ((k & 0x07) + ((7 - (k >> 3)) << 3)); |
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399 if ((j & l) != 0x00) perm[i][j] |= (1L << s); |
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400 } |
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401 } |
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402 } |
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403 |
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404 /** |
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405 * Encrypts String into crypt (Unix) code. |
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406 * |
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407 * @param key the key to be encrypted |
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408 * @param setting the salt to be used |
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409 * @return the encrypted String |
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410 */ |
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411 public static String crypt(String key, String setting) |
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412 { |
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413 long constdatablock = 0L; /* encryption constant */ |
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414 byte[] cryptresult = new byte[13]; /* encrypted result */ |
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415 long keyword = 0L; |
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416 /* invalid parameters! */ |
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417 if (key == null || setting == null) return "*"; // will NOT match under |
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418 // ANY circumstances! |
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419 |
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420 int keylen = key.length(); |
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421 |
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422 for (int i = 0; i < 8; i++) |
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423 { |
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424 keyword = (keyword << 8) | ((i < keylen) ? 2 * key.charAt(i) : 0); |
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425 } |
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426 |
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427 long[] KS = des_setkey(keyword); |
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428 |
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429 int salt = 0; |
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430 for (int i = 2; --i >= 0;) |
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431 { |
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432 char c = (i < setting.length()) ? setting.charAt(i) : '.'; |
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433 cryptresult[i] = (byte) c; |
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434 salt = (salt << 6) | (0x00ff & A64TOI[c]); |
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435 } |
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436 |
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437 long rsltblock = des_cipher(constdatablock, salt, 25, KS); |
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438 |
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439 cryptresult[12] = ITOA64[(((int) rsltblock) << 2) & 0x3f]; |
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440 rsltblock >>= 4; |
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441 for (int i = 12; --i >= 2;) |
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442 { |
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443 cryptresult[i] = ITOA64[((int) rsltblock) & 0x3f]; |
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444 rsltblock >>= 6; |
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445 } |
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446 |
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447 return new String(cryptresult, 0, 13); |
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448 } |
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449 |
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450 public static void main(String[] arg) |
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451 { |
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452 if (arg.length != 2) |
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453 { |
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454 System.err.println("Usage - java org.eclipse.util.UnixCrypt <key> <salt>"); |
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455 System.exit(1); |
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456 } |
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457 |
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458 System.err.println("Crypt=" + crypt(arg[0], arg[1])); |
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459 } |
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460 |
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461 } |