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Rev | Author | Line No. | Line |
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827 | daniel-mar | 1 | <?php |
2 | |||
3 | /** |
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4 | * Pure-PHP implementation of Blowfish. |
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5 | * |
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6 | * Uses mcrypt, if available, and an internal implementation, otherwise. |
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7 | * |
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8 | * PHP version 5 |
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9 | * |
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10 | * Useful resources are as follows: |
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11 | * |
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12 | * - {@link http://en.wikipedia.org/wiki/Blowfish_(cipher) Wikipedia description of Blowfish} |
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13 | * |
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14 | * Here's a short example of how to use this library: |
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15 | * <code> |
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16 | * <?php |
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17 | * include 'vendor/autoload.php'; |
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18 | * |
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19 | * $blowfish = new \phpseclib3\Crypt\Blowfish('ctr'); |
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20 | * |
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21 | * $blowfish->setKey('12345678901234567890123456789012'); |
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22 | * |
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23 | * $plaintext = str_repeat('a', 1024); |
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24 | * |
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25 | * echo $blowfish->decrypt($blowfish->encrypt($plaintext)); |
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26 | * ?> |
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27 | * </code> |
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28 | * |
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874 | daniel-mar | 29 | * @category Crypt |
30 | * @package Blowfish |
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827 | daniel-mar | 31 | * @author Jim Wigginton <terrafrost@php.net> |
32 | * @author Hans-Juergen Petrich <petrich@tronic-media.com> |
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33 | * @copyright 2007 Jim Wigginton |
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34 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
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35 | * @link http://phpseclib.sourceforge.net |
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36 | */ |
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37 | |||
38 | namespace phpseclib3\Crypt; |
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39 | |||
40 | use phpseclib3\Crypt\Common\BlockCipher; |
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41 | |||
42 | /** |
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43 | * Pure-PHP implementation of Blowfish. |
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44 | * |
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874 | daniel-mar | 45 | * @package Blowfish |
827 | daniel-mar | 46 | * @author Jim Wigginton <terrafrost@php.net> |
47 | * @author Hans-Juergen Petrich <petrich@tronic-media.com> |
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874 | daniel-mar | 48 | * @access public |
827 | daniel-mar | 49 | */ |
50 | class Blowfish extends BlockCipher |
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51 | { |
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52 | /** |
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53 | * Block Length of the cipher |
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54 | * |
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55 | * @see \phpseclib3\Crypt\Common\SymmetricKey::block_size |
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56 | * @var int |
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874 | daniel-mar | 57 | * @access private |
827 | daniel-mar | 58 | */ |
59 | protected $block_size = 8; |
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60 | |||
61 | /** |
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62 | * The mcrypt specific name of the cipher |
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63 | * |
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64 | * @see \phpseclib3\Crypt\Common\SymmetricKey::cipher_name_mcrypt |
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65 | * @var string |
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874 | daniel-mar | 66 | * @access private |
827 | daniel-mar | 67 | */ |
68 | protected $cipher_name_mcrypt = 'blowfish'; |
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69 | |||
70 | /** |
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71 | * Optimizing value while CFB-encrypting |
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72 | * |
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73 | * @see \phpseclib3\Crypt\Common\SymmetricKey::cfb_init_len |
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74 | * @var int |
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874 | daniel-mar | 75 | * @access private |
827 | daniel-mar | 76 | */ |
77 | protected $cfb_init_len = 500; |
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78 | |||
79 | /** |
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80 | * The fixed subkeys boxes ($sbox0 - $sbox3) with 256 entries each |
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81 | * |
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82 | * S-Box 0 |
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83 | * |
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874 | daniel-mar | 84 | * @access private |
827 | daniel-mar | 85 | * @var array |
86 | */ |
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87 | private static $sbox0 = [ |
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88 | 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, |
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89 | 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, |
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90 | 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, |
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91 | 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, |
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92 | 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, |
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93 | 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, |
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94 | 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, |
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95 | 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, |
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96 | 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, |
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97 | 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, |
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98 | 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, |
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99 | 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, |
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100 | 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, |
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101 | 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, |
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102 | 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, |
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103 | 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, |
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104 | 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, |
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105 | 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, |
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106 | 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, |
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107 | 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, |
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108 | 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, |
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109 | 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, |
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110 | 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, |
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111 | 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, |
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112 | 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, |
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113 | 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, |
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114 | 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, |
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115 | 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, |
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116 | 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, |
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117 | 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, |
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118 | 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, |
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119 | 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a |
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120 | ]; |
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121 | |||
122 | /** |
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123 | * S-Box 1 |
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124 | * |
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874 | daniel-mar | 125 | * @access private |
827 | daniel-mar | 126 | * @var array |
127 | */ |
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128 | private static $sbox1 = [ |
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129 | 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, |
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130 | 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, |
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131 | 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, |
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132 | 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, |
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133 | 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, |
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134 | 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, |
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135 | 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, |
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136 | 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, |
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137 | 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, |
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138 | 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, |
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139 | 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, |
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140 | 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, |
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141 | 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, |
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142 | 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, |
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143 | 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, |
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144 | 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, |
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145 | 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, |
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146 | 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, |
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147 | 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, |
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148 | 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, |
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149 | 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, |
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150 | 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, |
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151 | 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, |
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152 | 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, |
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153 | 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, |
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154 | 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, |
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155 | 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, |
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156 | 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, |
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157 | 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, |
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158 | 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, |
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159 | 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, |
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160 | 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7 |
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161 | ]; |
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162 | |||
163 | /** |
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164 | * S-Box 2 |
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165 | * |
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874 | daniel-mar | 166 | * @access private |
827 | daniel-mar | 167 | * @var array |
168 | */ |
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169 | private static $sbox2 = [ |
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170 | 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, |
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171 | 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, |
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172 | 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, |
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173 | 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, |
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174 | 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, |
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175 | 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, |
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176 | 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, |
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177 | 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, |
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178 | 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, |
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179 | 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, |
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180 | 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, |
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181 | 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, |
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182 | 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, |
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183 | 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, |
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184 | 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, |
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185 | 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, |
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186 | 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, |
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187 | 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, |
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188 | 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, |
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189 | 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, |
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190 | 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, |
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191 | 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, |
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192 | 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, |
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193 | 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, |
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194 | 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, |
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195 | 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, |
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196 | 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, |
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197 | 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, |
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198 | 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, |
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199 | 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, |
||
200 | 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, |
||
201 | 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0 |
||
202 | ]; |
||
203 | |||
204 | /** |
||
205 | * S-Box 3 |
||
206 | * |
||
874 | daniel-mar | 207 | * @access private |
827 | daniel-mar | 208 | * @var array |
209 | */ |
||
210 | private static $sbox3 = [ |
||
211 | 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, |
||
212 | 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, |
||
213 | 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, |
||
214 | 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, |
||
215 | 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, |
||
216 | 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, |
||
217 | 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, |
||
218 | 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, |
||
219 | 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, |
||
220 | 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, |
||
221 | 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, |
||
222 | 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, |
||
223 | 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, |
||
224 | 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, |
||
225 | 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, |
||
226 | 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, |
||
227 | 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, |
||
228 | 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, |
||
229 | 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, |
||
230 | 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, |
||
231 | 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, |
||
232 | 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, |
||
233 | 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, |
||
234 | 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, |
||
235 | 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, |
||
236 | 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, |
||
237 | 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, |
||
238 | 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, |
||
239 | 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, |
||
240 | 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, |
||
241 | 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, |
||
242 | 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 |
||
243 | ]; |
||
244 | |||
245 | /** |
||
246 | * P-Array consists of 18 32-bit subkeys |
||
247 | * |
||
248 | * @var array |
||
874 | daniel-mar | 249 | * @access private |
827 | daniel-mar | 250 | */ |
251 | private static $parray = [ |
||
252 | 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, |
||
253 | 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, |
||
254 | 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b |
||
255 | ]; |
||
256 | |||
257 | /** |
||
258 | * The BCTX-working Array |
||
259 | * |
||
260 | * Holds the expanded key [p] and the key-depended s-boxes [sb] |
||
261 | * |
||
262 | * @var array |
||
874 | daniel-mar | 263 | * @access private |
827 | daniel-mar | 264 | */ |
265 | private $bctx; |
||
266 | |||
267 | /** |
||
268 | * Holds the last used key |
||
269 | * |
||
270 | * @var array |
||
874 | daniel-mar | 271 | * @access private |
827 | daniel-mar | 272 | */ |
273 | private $kl; |
||
274 | |||
275 | /** |
||
276 | * The Key Length (in bytes) |
||
277 | * {@internal The max value is 256 / 8 = 32, the min value is 128 / 8 = 16. Exists in conjunction with $Nk |
||
278 | * because the encryption / decryption / key schedule creation requires this number and not $key_length. We could |
||
279 | * derive this from $key_length or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu |
||
280 | * of that, we'll just precompute it once.} |
||
281 | * |
||
282 | * @see \phpseclib3\Crypt\Common\SymmetricKey::setKeyLength() |
||
283 | * @var int |
||
874 | daniel-mar | 284 | * @access private |
827 | daniel-mar | 285 | */ |
286 | protected $key_length = 16; |
||
287 | |||
288 | /** |
||
289 | * Default Constructor. |
||
290 | * |
||
291 | * @param string $mode |
||
874 | daniel-mar | 292 | * @access public |
827 | daniel-mar | 293 | * @throws \InvalidArgumentException if an invalid / unsupported mode is provided |
294 | */ |
||
295 | public function __construct($mode) |
||
296 | { |
||
297 | parent::__construct($mode); |
||
298 | |||
299 | if ($this->mode == self::MODE_STREAM) { |
||
300 | throw new \InvalidArgumentException('Block ciphers cannot be ran in stream mode'); |
||
301 | } |
||
302 | } |
||
303 | |||
304 | /** |
||
305 | * Sets the key length. |
||
306 | * |
||
307 | * Key lengths can be between 32 and 448 bits. |
||
308 | * |
||
874 | daniel-mar | 309 | * @access public |
827 | daniel-mar | 310 | * @param int $length |
311 | */ |
||
312 | public function setKeyLength($length) |
||
313 | { |
||
314 | if ($length < 32 || $length > 448) { |
||
315 | throw new \LengthException('Key size of ' . $length . ' bits is not supported by this algorithm. Only keys of sizes between 32 and 448 bits are supported'); |
||
316 | } |
||
317 | |||
318 | $this->key_length = $length >> 3; |
||
319 | |||
320 | parent::setKeyLength($length); |
||
321 | } |
||
322 | |||
323 | /** |
||
324 | * Test for engine validity |
||
325 | * |
||
326 | * This is mainly just a wrapper to set things up for \phpseclib3\Crypt\Common\SymmetricKey::isValidEngine() |
||
327 | * |
||
328 | * @see \phpseclib3\Crypt\Common\SymmetricKey::isValidEngine() |
||
329 | * @param int $engine |
||
874 | daniel-mar | 330 | * @access protected |
827 | daniel-mar | 331 | * @return bool |
332 | */ |
||
333 | protected function isValidEngineHelper($engine) |
||
334 | { |
||
335 | if ($engine == self::ENGINE_OPENSSL) { |
||
336 | if (version_compare(PHP_VERSION, '5.3.7') < 0 && $this->key_length != 16) { |
||
337 | return false; |
||
338 | } |
||
339 | if ($this->key_length < 16) { |
||
340 | return false; |
||
341 | } |
||
342 | $this->cipher_name_openssl_ecb = 'bf-ecb'; |
||
343 | $this->cipher_name_openssl = 'bf-' . $this->openssl_translate_mode(); |
||
344 | } |
||
345 | |||
346 | return parent::isValidEngineHelper($engine); |
||
347 | } |
||
348 | |||
349 | /** |
||
350 | * Setup the key (expansion) |
||
351 | * |
||
352 | * @see \phpseclib3\Crypt\Common\SymmetricKey::_setupKey() |
||
874 | daniel-mar | 353 | * @access private |
827 | daniel-mar | 354 | */ |
355 | protected function setupKey() |
||
356 | { |
||
357 | if (isset($this->kl['key']) && $this->key === $this->kl['key']) { |
||
358 | // already expanded |
||
359 | return; |
||
360 | } |
||
361 | $this->kl = ['key' => $this->key]; |
||
362 | |||
363 | /* key-expanding p[] and S-Box building sb[] */ |
||
364 | $this->bctx = [ |
||
365 | 'p' => [], |
||
366 | 'sb' => [ |
||
367 | self::$sbox0, |
||
368 | self::$sbox1, |
||
369 | self::$sbox2, |
||
370 | self::$sbox3 |
||
371 | ] |
||
372 | ]; |
||
373 | |||
374 | // unpack binary string in unsigned chars |
||
375 | $key = array_values(unpack('C*', $this->key)); |
||
376 | $keyl = count($key); |
||
377 | for ($j = 0, $i = 0; $i < 18; ++$i) { |
||
378 | // xor P1 with the first 32-bits of the key, xor P2 with the second 32-bits ... |
||
379 | for ($data = 0, $k = 0; $k < 4; ++$k) { |
||
380 | $data = ($data << 8) | $key[$j]; |
||
381 | if (++$j >= $keyl) { |
||
382 | $j = 0; |
||
383 | } |
||
384 | } |
||
385 | $this->bctx['p'][] = self::$parray[$i] ^ $data; |
||
386 | } |
||
387 | |||
388 | // encrypt the zero-string, replace P1 and P2 with the encrypted data, |
||
389 | // encrypt P3 and P4 with the new P1 and P2, do it with all P-array and subkeys |
||
390 | $data = "\0\0\0\0\0\0\0\0"; |
||
391 | for ($i = 0; $i < 18; $i += 2) { |
||
392 | list($l, $r) = array_values(unpack('N*', $data = $this->encryptBlock($data))); |
||
393 | $this->bctx['p'][$i ] = $l; |
||
394 | $this->bctx['p'][$i + 1] = $r; |
||
395 | } |
||
396 | for ($i = 0; $i < 4; ++$i) { |
||
397 | for ($j = 0; $j < 256; $j += 2) { |
||
398 | list($l, $r) = array_values(unpack('N*', $data = $this->encryptBlock($data))); |
||
399 | $this->bctx['sb'][$i][$j ] = $l; |
||
400 | $this->bctx['sb'][$i][$j + 1] = $r; |
||
401 | } |
||
402 | } |
||
403 | } |
||
404 | |||
405 | /** |
||
406 | * Encrypts a block |
||
407 | * |
||
874 | daniel-mar | 408 | * @access private |
827 | daniel-mar | 409 | * @param string $in |
410 | * @return string |
||
411 | */ |
||
412 | protected function encryptBlock($in) |
||
413 | { |
||
414 | $p = $this->bctx['p']; |
||
415 | // extract($this->bctx['sb'], EXTR_PREFIX_ALL, 'sb'); // slower |
||
416 | $sb_0 = $this->bctx['sb'][0]; |
||
417 | $sb_1 = $this->bctx['sb'][1]; |
||
418 | $sb_2 = $this->bctx['sb'][2]; |
||
419 | $sb_3 = $this->bctx['sb'][3]; |
||
420 | |||
421 | $in = unpack('N*', $in); |
||
422 | $l = $in[1]; |
||
423 | $r = $in[2]; |
||
424 | |||
425 | for ($i = 0; $i < 16; $i += 2) { |
||
426 | $l ^= $p[$i]; |
||
427 | $r ^= self::safe_intval((self::safe_intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^ |
||
428 | $sb_2[$l >> 8 & 0xff]) + |
||
429 | $sb_3[$l & 0xff]); |
||
430 | |||
431 | $r ^= $p[$i + 1]; |
||
432 | $l ^= self::safe_intval((self::safe_intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^ |
||
433 | $sb_2[$r >> 8 & 0xff]) + |
||
434 | $sb_3[$r & 0xff]); |
||
435 | } |
||
436 | return pack('N*', $r ^ $p[17], $l ^ $p[16]); |
||
437 | } |
||
438 | |||
439 | /** |
||
440 | * Decrypts a block |
||
441 | * |
||
874 | daniel-mar | 442 | * @access private |
827 | daniel-mar | 443 | * @param string $in |
444 | * @return string |
||
445 | */ |
||
446 | protected function decryptBlock($in) |
||
447 | { |
||
448 | $p = $this->bctx['p']; |
||
449 | $sb_0 = $this->bctx['sb'][0]; |
||
450 | $sb_1 = $this->bctx['sb'][1]; |
||
451 | $sb_2 = $this->bctx['sb'][2]; |
||
452 | $sb_3 = $this->bctx['sb'][3]; |
||
453 | |||
454 | $in = unpack('N*', $in); |
||
455 | $l = $in[1]; |
||
456 | $r = $in[2]; |
||
457 | |||
458 | for ($i = 17; $i > 2; $i -= 2) { |
||
459 | $l ^= $p[$i]; |
||
460 | $r ^= self::safe_intval((self::safe_intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^ |
||
461 | $sb_2[$l >> 8 & 0xff]) + |
||
462 | $sb_3[$l & 0xff]); |
||
463 | |||
464 | $r ^= $p[$i - 1]; |
||
465 | $l ^= self::safe_intval((self::safe_intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^ |
||
466 | $sb_2[$r >> 8 & 0xff]) + |
||
467 | $sb_3[$r & 0xff]); |
||
468 | } |
||
469 | return pack('N*', $r ^ $p[0], $l ^ $p[1]); |
||
470 | } |
||
471 | |||
472 | /** |
||
473 | * Setup the performance-optimized function for de/encrypt() |
||
474 | * |
||
475 | * @see \phpseclib3\Crypt\Common\SymmetricKey::_setupInlineCrypt() |
||
874 | daniel-mar | 476 | * @access private |
827 | daniel-mar | 477 | */ |
478 | protected function setupInlineCrypt() |
||
479 | { |
||
480 | $p = $this->bctx['p']; |
||
481 | $init_crypt = ' |
||
482 | static $sb_0, $sb_1, $sb_2, $sb_3; |
||
483 | if (!$sb_0) { |
||
484 | $sb_0 = $this->bctx["sb"][0]; |
||
485 | $sb_1 = $this->bctx["sb"][1]; |
||
486 | $sb_2 = $this->bctx["sb"][2]; |
||
487 | $sb_3 = $this->bctx["sb"][3]; |
||
488 | } |
||
489 | '; |
||
490 | |||
491 | $safeint = self::safe_intval_inline(); |
||
492 | |||
493 | // Generating encrypt code: |
||
494 | $encrypt_block = ' |
||
495 | $in = unpack("N*", $in); |
||
496 | $l = $in[1]; |
||
497 | $r = $in[2]; |
||
498 | '; |
||
499 | for ($i = 0; $i < 16; $i += 2) { |
||
500 | $encrypt_block .= ' |
||
501 | $l^= ' . $p[$i] . '; |
||
502 | $r^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]') . ' ^ |
||
503 | $sb_2[$l >> 8 & 0xff]) + |
||
504 | $sb_3[$l & 0xff]') . '; |
||
505 | |||
506 | $r^= ' . $p[$i + 1] . '; |
||
507 | $l^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]') . ' ^ |
||
508 | $sb_2[$r >> 8 & 0xff]) + |
||
509 | $sb_3[$r & 0xff]') . '; |
||
510 | '; |
||
511 | } |
||
512 | $encrypt_block .= ' |
||
513 | $in = pack("N*", |
||
514 | $r ^ ' . $p[17] . ', |
||
515 | $l ^ ' . $p[16] . ' |
||
516 | ); |
||
517 | '; |
||
518 | // Generating decrypt code: |
||
519 | $decrypt_block = ' |
||
520 | $in = unpack("N*", $in); |
||
521 | $l = $in[1]; |
||
522 | $r = $in[2]; |
||
523 | '; |
||
524 | |||
525 | for ($i = 17; $i > 2; $i -= 2) { |
||
526 | $decrypt_block .= ' |
||
527 | $l^= ' . $p[$i] . '; |
||
528 | $r^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]') . ' ^ |
||
529 | $sb_2[$l >> 8 & 0xff]) + |
||
530 | $sb_3[$l & 0xff]') . '; |
||
531 | |||
532 | $r^= ' . $p[$i - 1] . '; |
||
533 | $l^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]') . ' ^ |
||
534 | $sb_2[$r >> 8 & 0xff]) + |
||
535 | $sb_3[$r & 0xff]') . '; |
||
536 | '; |
||
537 | } |
||
538 | |||
539 | $decrypt_block .= ' |
||
540 | $in = pack("N*", |
||
541 | $r ^ ' . $p[0] . ', |
||
542 | $l ^ ' . $p[1] . ' |
||
543 | ); |
||
544 | '; |
||
545 | |||
546 | $this->inline_crypt = $this->createInlineCryptFunction( |
||
547 | [ |
||
548 | 'init_crypt' => $init_crypt, |
||
549 | 'init_encrypt' => '', |
||
550 | 'init_decrypt' => '', |
||
551 | 'encrypt_block' => $encrypt_block, |
||
552 | 'decrypt_block' => $decrypt_block |
||
553 | ] |
||
554 | ); |
||
555 | } |
||
556 | } |