1 | <?php |
||
2 | |||
3 | /** |
||
4 | * Pure-PHP implementation of Twofish. |
||
5 | * |
||
6 | * Uses mcrypt, if available, and an internal implementation, otherwise. |
||
7 | * |
||
8 | * PHP version 5 |
||
9 | * |
||
10 | * Useful resources are as follows: |
||
11 | * |
||
12 | * - {@link http://en.wikipedia.org/wiki/Twofish Wikipedia description of Twofish} |
||
13 | * |
||
14 | * Here's a short example of how to use this library: |
||
15 | * <code> |
||
16 | * <?php |
||
17 | * include 'vendor/autoload.php'; |
||
18 | * |
||
19 | * $twofish = new \phpseclib\Crypt\Twofish(); |
||
20 | * |
||
21 | * $twofish->setKey('12345678901234567890123456789012'); |
||
22 | * |
||
23 | * $plaintext = str_repeat('a', 1024); |
||
24 | * |
||
25 | * echo $twofish->decrypt($twofish->encrypt($plaintext)); |
||
26 | * ?> |
||
27 | * </code> |
||
28 | * |
||
29 | * @category Crypt |
||
30 | * @package Twofish |
||
31 | * @author Jim Wigginton <[email protected]> |
||
32 | * @author Hans-Juergen Petrich <[email protected]> |
||
33 | * @copyright 2007 Jim Wigginton |
||
34 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
||
35 | * @link http://phpseclib.sourceforge.net |
||
36 | */ |
||
37 | |||
38 | namespace phpseclib\Crypt; |
||
39 | |||
40 | /** |
||
41 | * Pure-PHP implementation of Twofish. |
||
42 | * |
||
43 | * @package Twofish |
||
44 | * @author Jim Wigginton <[email protected]> |
||
45 | * @author Hans-Juergen Petrich <[email protected]> |
||
46 | * @access public |
||
47 | */ |
||
48 | class Twofish extends Base |
||
49 | { |
||
50 | /** |
||
51 | * The mcrypt specific name of the cipher |
||
52 | * |
||
53 | * @see \phpseclib\Crypt\Base::cipher_name_mcrypt |
||
54 | * @var string |
||
55 | * @access private |
||
56 | */ |
||
57 | public $cipher_name_mcrypt = 'twofish'; |
||
58 | |||
59 | /** |
||
60 | * Optimizing value while CFB-encrypting |
||
61 | * |
||
62 | * @see \phpseclib\Crypt\Base::cfb_init_len |
||
63 | * @var int |
||
64 | * @access private |
||
65 | */ |
||
66 | public $cfb_init_len = 800; |
||
67 | |||
68 | /** |
||
69 | * Q-Table |
||
70 | * |
||
71 | * @var array |
||
72 | * @access private |
||
73 | */ |
||
74 | public $q0 = array( |
||
75 | 0xA9, 0x67, 0xB3, 0xE8, 0x04, 0xFD, 0xA3, 0x76, |
||
76 | 0x9A, 0x92, 0x80, 0x78, 0xE4, 0xDD, 0xD1, 0x38, |
||
77 | 0x0D, 0xC6, 0x35, 0x98, 0x18, 0xF7, 0xEC, 0x6C, |
||
78 | 0x43, 0x75, 0x37, 0x26, 0xFA, 0x13, 0x94, 0x48, |
||
79 | 0xF2, 0xD0, 0x8B, 0x30, 0x84, 0x54, 0xDF, 0x23, |
||
80 | 0x19, 0x5B, 0x3D, 0x59, 0xF3, 0xAE, 0xA2, 0x82, |
||
81 | 0x63, 0x01, 0x83, 0x2E, 0xD9, 0x51, 0x9B, 0x7C, |
||
82 | 0xA6, 0xEB, 0xA5, 0xBE, 0x16, 0x0C, 0xE3, 0x61, |
||
83 | 0xC0, 0x8C, 0x3A, 0xF5, 0x73, 0x2C, 0x25, 0x0B, |
||
84 | 0xBB, 0x4E, 0x89, 0x6B, 0x53, 0x6A, 0xB4, 0xF1, |
||
85 | 0xE1, 0xE6, 0xBD, 0x45, 0xE2, 0xF4, 0xB6, 0x66, |
||
86 | 0xCC, 0x95, 0x03, 0x56, 0xD4, 0x1C, 0x1E, 0xD7, |
||
87 | 0xFB, 0xC3, 0x8E, 0xB5, 0xE9, 0xCF, 0xBF, 0xBA, |
||
88 | 0xEA, 0x77, 0x39, 0xAF, 0x33, 0xC9, 0x62, 0x71, |
||
89 | 0x81, 0x79, 0x09, 0xAD, 0x24, 0xCD, 0xF9, 0xD8, |
||
90 | 0xE5, 0xC5, 0xB9, 0x4D, 0x44, 0x08, 0x86, 0xE7, |
||
91 | 0xA1, 0x1D, 0xAA, 0xED, 0x06, 0x70, 0xB2, 0xD2, |
||
92 | 0x41, 0x7B, 0xA0, 0x11, 0x31, 0xC2, 0x27, 0x90, |
||
93 | 0x20, 0xF6, 0x60, 0xFF, 0x96, 0x5C, 0xB1, 0xAB, |
||
94 | 0x9E, 0x9C, 0x52, 0x1B, 0x5F, 0x93, 0x0A, 0xEF, |
||
95 | 0x91, 0x85, 0x49, 0xEE, 0x2D, 0x4F, 0x8F, 0x3B, |
||
96 | 0x47, 0x87, 0x6D, 0x46, 0xD6, 0x3E, 0x69, 0x64, |
||
97 | 0x2A, 0xCE, 0xCB, 0x2F, 0xFC, 0x97, 0x05, 0x7A, |
||
98 | 0xAC, 0x7F, 0xD5, 0x1A, 0x4B, 0x0E, 0xA7, 0x5A, |
||
99 | 0x28, 0x14, 0x3F, 0x29, 0x88, 0x3C, 0x4C, 0x02, |
||
100 | 0xB8, 0xDA, 0xB0, 0x17, 0x55, 0x1F, 0x8A, 0x7D, |
||
101 | 0x57, 0xC7, 0x8D, 0x74, 0xB7, 0xC4, 0x9F, 0x72, |
||
102 | 0x7E, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34, |
||
103 | 0x6E, 0x50, 0xDE, 0x68, 0x65, 0xBC, 0xDB, 0xF8, |
||
104 | 0xC8, 0xA8, 0x2B, 0x40, 0xDC, 0xFE, 0x32, 0xA4, |
||
105 | 0xCA, 0x10, 0x21, 0xF0, 0xD3, 0x5D, 0x0F, 0x00, |
||
106 | 0x6F, 0x9D, 0x36, 0x42, 0x4A, 0x5E, 0xC1, 0xE0 |
||
107 | ); |
||
108 | |||
109 | /** |
||
110 | * Q-Table |
||
111 | * |
||
112 | * @var array |
||
113 | * @access private |
||
114 | */ |
||
115 | public $q1 = array( |
||
116 | 0x75, 0xF3, 0xC6, 0xF4, 0xDB, 0x7B, 0xFB, 0xC8, |
||
117 | 0x4A, 0xD3, 0xE6, 0x6B, 0x45, 0x7D, 0xE8, 0x4B, |
||
118 | 0xD6, 0x32, 0xD8, 0xFD, 0x37, 0x71, 0xF1, 0xE1, |
||
119 | 0x30, 0x0F, 0xF8, 0x1B, 0x87, 0xFA, 0x06, 0x3F, |
||
120 | 0x5E, 0xBA, 0xAE, 0x5B, 0x8A, 0x00, 0xBC, 0x9D, |
||
121 | 0x6D, 0xC1, 0xB1, 0x0E, 0x80, 0x5D, 0xD2, 0xD5, |
||
122 | 0xA0, 0x84, 0x07, 0x14, 0xB5, 0x90, 0x2C, 0xA3, |
||
123 | 0xB2, 0x73, 0x4C, 0x54, 0x92, 0x74, 0x36, 0x51, |
||
124 | 0x38, 0xB0, 0xBD, 0x5A, 0xFC, 0x60, 0x62, 0x96, |
||
125 | 0x6C, 0x42, 0xF7, 0x10, 0x7C, 0x28, 0x27, 0x8C, |
||
126 | 0x13, 0x95, 0x9C, 0xC7, 0x24, 0x46, 0x3B, 0x70, |
||
127 | 0xCA, 0xE3, 0x85, 0xCB, 0x11, 0xD0, 0x93, 0xB8, |
||
128 | 0xA6, 0x83, 0x20, 0xFF, 0x9F, 0x77, 0xC3, 0xCC, |
||
129 | 0x03, 0x6F, 0x08, 0xBF, 0x40, 0xE7, 0x2B, 0xE2, |
||
130 | 0x79, 0x0C, 0xAA, 0x82, 0x41, 0x3A, 0xEA, 0xB9, |
||
131 | 0xE4, 0x9A, 0xA4, 0x97, 0x7E, 0xDA, 0x7A, 0x17, |
||
132 | 0x66, 0x94, 0xA1, 0x1D, 0x3D, 0xF0, 0xDE, 0xB3, |
||
133 | 0x0B, 0x72, 0xA7, 0x1C, 0xEF, 0xD1, 0x53, 0x3E, |
||
134 | 0x8F, 0x33, 0x26, 0x5F, 0xEC, 0x76, 0x2A, 0x49, |
||
135 | 0x81, 0x88, 0xEE, 0x21, 0xC4, 0x1A, 0xEB, 0xD9, |
||
136 | 0xC5, 0x39, 0x99, 0xCD, 0xAD, 0x31, 0x8B, 0x01, |
||
137 | 0x18, 0x23, 0xDD, 0x1F, 0x4E, 0x2D, 0xF9, 0x48, |
||
138 | 0x4F, 0xF2, 0x65, 0x8E, 0x78, 0x5C, 0x58, 0x19, |
||
139 | 0x8D, 0xE5, 0x98, 0x57, 0x67, 0x7F, 0x05, 0x64, |
||
140 | 0xAF, 0x63, 0xB6, 0xFE, 0xF5, 0xB7, 0x3C, 0xA5, |
||
141 | 0xCE, 0xE9, 0x68, 0x44, 0xE0, 0x4D, 0x43, 0x69, |
||
142 | 0x29, 0x2E, 0xAC, 0x15, 0x59, 0xA8, 0x0A, 0x9E, |
||
143 | 0x6E, 0x47, 0xDF, 0x34, 0x35, 0x6A, 0xCF, 0xDC, |
||
144 | 0x22, 0xC9, 0xC0, 0x9B, 0x89, 0xD4, 0xED, 0xAB, |
||
145 | 0x12, 0xA2, 0x0D, 0x52, 0xBB, 0x02, 0x2F, 0xA9, |
||
146 | 0xD7, 0x61, 0x1E, 0xB4, 0x50, 0x04, 0xF6, 0xC2, |
||
147 | 0x16, 0x25, 0x86, 0x56, 0x55, 0x09, 0xBE, 0x91 |
||
148 | ); |
||
149 | |||
150 | /** |
||
151 | * M-Table |
||
152 | * |
||
153 | * @var array |
||
154 | * @access private |
||
155 | */ |
||
156 | public $m0 = array( |
||
157 | 0xBCBC3275, 0xECEC21F3, 0x202043C6, 0xB3B3C9F4, 0xDADA03DB, 0x02028B7B, 0xE2E22BFB, 0x9E9EFAC8, |
||
158 | 0xC9C9EC4A, 0xD4D409D3, 0x18186BE6, 0x1E1E9F6B, 0x98980E45, 0xB2B2387D, 0xA6A6D2E8, 0x2626B74B, |
||
159 | 0x3C3C57D6, 0x93938A32, 0x8282EED8, 0x525298FD, 0x7B7BD437, 0xBBBB3771, 0x5B5B97F1, 0x474783E1, |
||
160 | 0x24243C30, 0x5151E20F, 0xBABAC6F8, 0x4A4AF31B, 0xBFBF4887, 0x0D0D70FA, 0xB0B0B306, 0x7575DE3F, |
||
161 | 0xD2D2FD5E, 0x7D7D20BA, 0x666631AE, 0x3A3AA35B, 0x59591C8A, 0x00000000, 0xCDCD93BC, 0x1A1AE09D, |
||
162 | 0xAEAE2C6D, 0x7F7FABC1, 0x2B2BC7B1, 0xBEBEB90E, 0xE0E0A080, 0x8A8A105D, 0x3B3B52D2, 0x6464BAD5, |
||
163 | 0xD8D888A0, 0xE7E7A584, 0x5F5FE807, 0x1B1B1114, 0x2C2CC2B5, 0xFCFCB490, 0x3131272C, 0x808065A3, |
||
164 | 0x73732AB2, 0x0C0C8173, 0x79795F4C, 0x6B6B4154, 0x4B4B0292, 0x53536974, 0x94948F36, 0x83831F51, |
||
165 | 0x2A2A3638, 0xC4C49CB0, 0x2222C8BD, 0xD5D5F85A, 0xBDBDC3FC, 0x48487860, 0xFFFFCE62, 0x4C4C0796, |
||
166 | 0x4141776C, 0xC7C7E642, 0xEBEB24F7, 0x1C1C1410, 0x5D5D637C, 0x36362228, 0x6767C027, 0xE9E9AF8C, |
||
167 | 0x4444F913, 0x1414EA95, 0xF5F5BB9C, 0xCFCF18C7, 0x3F3F2D24, 0xC0C0E346, 0x7272DB3B, 0x54546C70, |
||
168 | 0x29294CCA, 0xF0F035E3, 0x0808FE85, 0xC6C617CB, 0xF3F34F11, 0x8C8CE4D0, 0xA4A45993, 0xCACA96B8, |
||
169 | 0x68683BA6, 0xB8B84D83, 0x38382820, 0xE5E52EFF, 0xADAD569F, 0x0B0B8477, 0xC8C81DC3, 0x9999FFCC, |
||
170 | 0x5858ED03, 0x19199A6F, 0x0E0E0A08, 0x95957EBF, 0x70705040, 0xF7F730E7, 0x6E6ECF2B, 0x1F1F6EE2, |
||
171 | 0xB5B53D79, 0x09090F0C, 0x616134AA, 0x57571682, 0x9F9F0B41, 0x9D9D803A, 0x111164EA, 0x2525CDB9, |
||
172 | 0xAFAFDDE4, 0x4545089A, 0xDFDF8DA4, 0xA3A35C97, 0xEAEAD57E, 0x353558DA, 0xEDEDD07A, 0x4343FC17, |
||
173 | 0xF8F8CB66, 0xFBFBB194, 0x3737D3A1, 0xFAFA401D, 0xC2C2683D, 0xB4B4CCF0, 0x32325DDE, 0x9C9C71B3, |
||
174 | 0x5656E70B, 0xE3E3DA72, 0x878760A7, 0x15151B1C, 0xF9F93AEF, 0x6363BFD1, 0x3434A953, 0x9A9A853E, |
||
175 | 0xB1B1428F, 0x7C7CD133, 0x88889B26, 0x3D3DA65F, 0xA1A1D7EC, 0xE4E4DF76, 0x8181942A, 0x91910149, |
||
176 | 0x0F0FFB81, 0xEEEEAA88, 0x161661EE, 0xD7D77321, 0x9797F5C4, 0xA5A5A81A, 0xFEFE3FEB, 0x6D6DB5D9, |
||
177 | 0x7878AEC5, 0xC5C56D39, 0x1D1DE599, 0x7676A4CD, 0x3E3EDCAD, 0xCBCB6731, 0xB6B6478B, 0xEFEF5B01, |
||
178 | 0x12121E18, 0x6060C523, 0x6A6AB0DD, 0x4D4DF61F, 0xCECEE94E, 0xDEDE7C2D, 0x55559DF9, 0x7E7E5A48, |
||
179 | 0x2121B24F, 0x03037AF2, 0xA0A02665, 0x5E5E198E, 0x5A5A6678, 0x65654B5C, 0x62624E58, 0xFDFD4519, |
||
180 | 0x0606F48D, 0x404086E5, 0xF2F2BE98, 0x3333AC57, 0x17179067, 0x05058E7F, 0xE8E85E05, 0x4F4F7D64, |
||
181 | 0x89896AAF, 0x10109563, 0x74742FB6, 0x0A0A75FE, 0x5C5C92F5, 0x9B9B74B7, 0x2D2D333C, 0x3030D6A5, |
||
182 | 0x2E2E49CE, 0x494989E9, 0x46467268, 0x77775544, 0xA8A8D8E0, 0x9696044D, 0x2828BD43, 0xA9A92969, |
||
183 | 0xD9D97929, 0x8686912E, 0xD1D187AC, 0xF4F44A15, 0x8D8D1559, 0xD6D682A8, 0xB9B9BC0A, 0x42420D9E, |
||
184 | 0xF6F6C16E, 0x2F2FB847, 0xDDDD06DF, 0x23233934, 0xCCCC6235, 0xF1F1C46A, 0xC1C112CF, 0x8585EBDC, |
||
185 | 0x8F8F9E22, 0x7171A1C9, 0x9090F0C0, 0xAAAA539B, 0x0101F189, 0x8B8BE1D4, 0x4E4E8CED, 0x8E8E6FAB, |
||
186 | 0xABABA212, 0x6F6F3EA2, 0xE6E6540D, 0xDBDBF252, 0x92927BBB, 0xB7B7B602, 0x6969CA2F, 0x3939D9A9, |
||
187 | 0xD3D30CD7, 0xA7A72361, 0xA2A2AD1E, 0xC3C399B4, 0x6C6C4450, 0x07070504, 0x04047FF6, 0x272746C2, |
||
188 | 0xACACA716, 0xD0D07625, 0x50501386, 0xDCDCF756, 0x84841A55, 0xE1E15109, 0x7A7A25BE, 0x1313EF91 |
||
189 | ); |
||
190 | |||
191 | /** |
||
192 | * M-Table |
||
193 | * |
||
194 | * @var array |
||
195 | * @access private |
||
196 | */ |
||
197 | public $m1 = array( |
||
198 | 0xA9D93939, 0x67901717, 0xB3719C9C, 0xE8D2A6A6, 0x04050707, 0xFD985252, 0xA3658080, 0x76DFE4E4, |
||
199 | 0x9A084545, 0x92024B4B, 0x80A0E0E0, 0x78665A5A, 0xE4DDAFAF, 0xDDB06A6A, 0xD1BF6363, 0x38362A2A, |
||
200 | 0x0D54E6E6, 0xC6432020, 0x3562CCCC, 0x98BEF2F2, 0x181E1212, 0xF724EBEB, 0xECD7A1A1, 0x6C774141, |
||
201 | 0x43BD2828, 0x7532BCBC, 0x37D47B7B, 0x269B8888, 0xFA700D0D, 0x13F94444, 0x94B1FBFB, 0x485A7E7E, |
||
202 | 0xF27A0303, 0xD0E48C8C, 0x8B47B6B6, 0x303C2424, 0x84A5E7E7, 0x54416B6B, 0xDF06DDDD, 0x23C56060, |
||
203 | 0x1945FDFD, 0x5BA33A3A, 0x3D68C2C2, 0x59158D8D, 0xF321ECEC, 0xAE316666, 0xA23E6F6F, 0x82165757, |
||
204 | 0x63951010, 0x015BEFEF, 0x834DB8B8, 0x2E918686, 0xD9B56D6D, 0x511F8383, 0x9B53AAAA, 0x7C635D5D, |
||
205 | 0xA63B6868, 0xEB3FFEFE, 0xA5D63030, 0xBE257A7A, 0x16A7ACAC, 0x0C0F0909, 0xE335F0F0, 0x6123A7A7, |
||
206 | 0xC0F09090, 0x8CAFE9E9, 0x3A809D9D, 0xF5925C5C, 0x73810C0C, 0x2C273131, 0x2576D0D0, 0x0BE75656, |
||
207 | 0xBB7B9292, 0x4EE9CECE, 0x89F10101, 0x6B9F1E1E, 0x53A93434, 0x6AC4F1F1, 0xB499C3C3, 0xF1975B5B, |
||
208 | 0xE1834747, 0xE66B1818, 0xBDC82222, 0x450E9898, 0xE26E1F1F, 0xF4C9B3B3, 0xB62F7474, 0x66CBF8F8, |
||
209 | 0xCCFF9999, 0x95EA1414, 0x03ED5858, 0x56F7DCDC, 0xD4E18B8B, 0x1C1B1515, 0x1EADA2A2, 0xD70CD3D3, |
||
210 | 0xFB2BE2E2, 0xC31DC8C8, 0x8E195E5E, 0xB5C22C2C, 0xE9894949, 0xCF12C1C1, 0xBF7E9595, 0xBA207D7D, |
||
211 | 0xEA641111, 0x77840B0B, 0x396DC5C5, 0xAF6A8989, 0x33D17C7C, 0xC9A17171, 0x62CEFFFF, 0x7137BBBB, |
||
212 | 0x81FB0F0F, 0x793DB5B5, 0x0951E1E1, 0xADDC3E3E, 0x242D3F3F, 0xCDA47676, 0xF99D5555, 0xD8EE8282, |
||
213 | 0xE5864040, 0xC5AE7878, 0xB9CD2525, 0x4D049696, 0x44557777, 0x080A0E0E, 0x86135050, 0xE730F7F7, |
||
214 | 0xA1D33737, 0x1D40FAFA, 0xAA346161, 0xED8C4E4E, 0x06B3B0B0, 0x706C5454, 0xB22A7373, 0xD2523B3B, |
||
215 | 0x410B9F9F, 0x7B8B0202, 0xA088D8D8, 0x114FF3F3, 0x3167CBCB, 0xC2462727, 0x27C06767, 0x90B4FCFC, |
||
216 | 0x20283838, 0xF67F0404, 0x60784848, 0xFF2EE5E5, 0x96074C4C, 0x5C4B6565, 0xB1C72B2B, 0xAB6F8E8E, |
||
217 | 0x9E0D4242, 0x9CBBF5F5, 0x52F2DBDB, 0x1BF34A4A, 0x5FA63D3D, 0x9359A4A4, 0x0ABCB9B9, 0xEF3AF9F9, |
||
218 | 0x91EF1313, 0x85FE0808, 0x49019191, 0xEE611616, 0x2D7CDEDE, 0x4FB22121, 0x8F42B1B1, 0x3BDB7272, |
||
219 | 0x47B82F2F, 0x8748BFBF, 0x6D2CAEAE, 0x46E3C0C0, 0xD6573C3C, 0x3E859A9A, 0x6929A9A9, 0x647D4F4F, |
||
220 | 0x2A948181, 0xCE492E2E, 0xCB17C6C6, 0x2FCA6969, 0xFCC3BDBD, 0x975CA3A3, 0x055EE8E8, 0x7AD0EDED, |
||
221 | 0xAC87D1D1, 0x7F8E0505, 0xD5BA6464, 0x1AA8A5A5, 0x4BB72626, 0x0EB9BEBE, 0xA7608787, 0x5AF8D5D5, |
||
222 | 0x28223636, 0x14111B1B, 0x3FDE7575, 0x2979D9D9, 0x88AAEEEE, 0x3C332D2D, 0x4C5F7979, 0x02B6B7B7, |
||
223 | 0xB896CACA, 0xDA583535, 0xB09CC4C4, 0x17FC4343, 0x551A8484, 0x1FF64D4D, 0x8A1C5959, 0x7D38B2B2, |
||
224 | 0x57AC3333, 0xC718CFCF, 0x8DF40606, 0x74695353, 0xB7749B9B, 0xC4F59797, 0x9F56ADAD, 0x72DAE3E3, |
||
225 | 0x7ED5EAEA, 0x154AF4F4, 0x229E8F8F, 0x12A2ABAB, 0x584E6262, 0x07E85F5F, 0x99E51D1D, 0x34392323, |
||
226 | 0x6EC1F6F6, 0x50446C6C, 0xDE5D3232, 0x68724646, 0x6526A0A0, 0xBC93CDCD, 0xDB03DADA, 0xF8C6BABA, |
||
227 | 0xC8FA9E9E, 0xA882D6D6, 0x2BCF6E6E, 0x40507070, 0xDCEB8585, 0xFE750A0A, 0x328A9393, 0xA48DDFDF, |
||
228 | 0xCA4C2929, 0x10141C1C, 0x2173D7D7, 0xF0CCB4B4, 0xD309D4D4, 0x5D108A8A, 0x0FE25151, 0x00000000, |
||
229 | 0x6F9A1919, 0x9DE01A1A, 0x368F9494, 0x42E6C7C7, 0x4AECC9C9, 0x5EFDD2D2, 0xC1AB7F7F, 0xE0D8A8A8 |
||
230 | ); |
||
231 | |||
232 | /** |
||
233 | * M-Table |
||
234 | * |
||
235 | * @var array |
||
236 | * @access private |
||
237 | */ |
||
238 | public $m2 = array( |
||
239 | 0xBC75BC32, 0xECF3EC21, 0x20C62043, 0xB3F4B3C9, 0xDADBDA03, 0x027B028B, 0xE2FBE22B, 0x9EC89EFA, |
||
240 | 0xC94AC9EC, 0xD4D3D409, 0x18E6186B, 0x1E6B1E9F, 0x9845980E, 0xB27DB238, 0xA6E8A6D2, 0x264B26B7, |
||
241 | 0x3CD63C57, 0x9332938A, 0x82D882EE, 0x52FD5298, 0x7B377BD4, 0xBB71BB37, 0x5BF15B97, 0x47E14783, |
||
242 | 0x2430243C, 0x510F51E2, 0xBAF8BAC6, 0x4A1B4AF3, 0xBF87BF48, 0x0DFA0D70, 0xB006B0B3, 0x753F75DE, |
||
243 | 0xD25ED2FD, 0x7DBA7D20, 0x66AE6631, 0x3A5B3AA3, 0x598A591C, 0x00000000, 0xCDBCCD93, 0x1A9D1AE0, |
||
244 | 0xAE6DAE2C, 0x7FC17FAB, 0x2BB12BC7, 0xBE0EBEB9, 0xE080E0A0, 0x8A5D8A10, 0x3BD23B52, 0x64D564BA, |
||
245 | 0xD8A0D888, 0xE784E7A5, 0x5F075FE8, 0x1B141B11, 0x2CB52CC2, 0xFC90FCB4, 0x312C3127, 0x80A38065, |
||
246 | 0x73B2732A, 0x0C730C81, 0x794C795F, 0x6B546B41, 0x4B924B02, 0x53745369, 0x9436948F, 0x8351831F, |
||
247 | 0x2A382A36, 0xC4B0C49C, 0x22BD22C8, 0xD55AD5F8, 0xBDFCBDC3, 0x48604878, 0xFF62FFCE, 0x4C964C07, |
||
248 | 0x416C4177, 0xC742C7E6, 0xEBF7EB24, 0x1C101C14, 0x5D7C5D63, 0x36283622, 0x672767C0, 0xE98CE9AF, |
||
249 | 0x441344F9, 0x149514EA, 0xF59CF5BB, 0xCFC7CF18, 0x3F243F2D, 0xC046C0E3, 0x723B72DB, 0x5470546C, |
||
250 | 0x29CA294C, 0xF0E3F035, 0x088508FE, 0xC6CBC617, 0xF311F34F, 0x8CD08CE4, 0xA493A459, 0xCAB8CA96, |
||
251 | 0x68A6683B, 0xB883B84D, 0x38203828, 0xE5FFE52E, 0xAD9FAD56, 0x0B770B84, 0xC8C3C81D, 0x99CC99FF, |
||
252 | 0x580358ED, 0x196F199A, 0x0E080E0A, 0x95BF957E, 0x70407050, 0xF7E7F730, 0x6E2B6ECF, 0x1FE21F6E, |
||
253 | 0xB579B53D, 0x090C090F, 0x61AA6134, 0x57825716, 0x9F419F0B, 0x9D3A9D80, 0x11EA1164, 0x25B925CD, |
||
254 | 0xAFE4AFDD, 0x459A4508, 0xDFA4DF8D, 0xA397A35C, 0xEA7EEAD5, 0x35DA3558, 0xED7AEDD0, 0x431743FC, |
||
255 | 0xF866F8CB, 0xFB94FBB1, 0x37A137D3, 0xFA1DFA40, 0xC23DC268, 0xB4F0B4CC, 0x32DE325D, 0x9CB39C71, |
||
256 | 0x560B56E7, 0xE372E3DA, 0x87A78760, 0x151C151B, 0xF9EFF93A, 0x63D163BF, 0x345334A9, 0x9A3E9A85, |
||
257 | 0xB18FB142, 0x7C337CD1, 0x8826889B, 0x3D5F3DA6, 0xA1ECA1D7, 0xE476E4DF, 0x812A8194, 0x91499101, |
||
258 | 0x0F810FFB, 0xEE88EEAA, 0x16EE1661, 0xD721D773, 0x97C497F5, 0xA51AA5A8, 0xFEEBFE3F, 0x6DD96DB5, |
||
259 | 0x78C578AE, 0xC539C56D, 0x1D991DE5, 0x76CD76A4, 0x3EAD3EDC, 0xCB31CB67, 0xB68BB647, 0xEF01EF5B, |
||
260 | 0x1218121E, 0x602360C5, 0x6ADD6AB0, 0x4D1F4DF6, 0xCE4ECEE9, 0xDE2DDE7C, 0x55F9559D, 0x7E487E5A, |
||
261 | 0x214F21B2, 0x03F2037A, 0xA065A026, 0x5E8E5E19, 0x5A785A66, 0x655C654B, 0x6258624E, 0xFD19FD45, |
||
262 | 0x068D06F4, 0x40E54086, 0xF298F2BE, 0x335733AC, 0x17671790, 0x057F058E, 0xE805E85E, 0x4F644F7D, |
||
263 | 0x89AF896A, 0x10631095, 0x74B6742F, 0x0AFE0A75, 0x5CF55C92, 0x9BB79B74, 0x2D3C2D33, 0x30A530D6, |
||
264 | 0x2ECE2E49, 0x49E94989, 0x46684672, 0x77447755, 0xA8E0A8D8, 0x964D9604, 0x284328BD, 0xA969A929, |
||
265 | 0xD929D979, 0x862E8691, 0xD1ACD187, 0xF415F44A, 0x8D598D15, 0xD6A8D682, 0xB90AB9BC, 0x429E420D, |
||
266 | 0xF66EF6C1, 0x2F472FB8, 0xDDDFDD06, 0x23342339, 0xCC35CC62, 0xF16AF1C4, 0xC1CFC112, 0x85DC85EB, |
||
267 | 0x8F228F9E, 0x71C971A1, 0x90C090F0, 0xAA9BAA53, 0x018901F1, 0x8BD48BE1, 0x4EED4E8C, 0x8EAB8E6F, |
||
268 | 0xAB12ABA2, 0x6FA26F3E, 0xE60DE654, 0xDB52DBF2, 0x92BB927B, 0xB702B7B6, 0x692F69CA, 0x39A939D9, |
||
269 | 0xD3D7D30C, 0xA761A723, 0xA21EA2AD, 0xC3B4C399, 0x6C506C44, 0x07040705, 0x04F6047F, 0x27C22746, |
||
270 | 0xAC16ACA7, 0xD025D076, 0x50865013, 0xDC56DCF7, 0x8455841A, 0xE109E151, 0x7ABE7A25, 0x139113EF |
||
271 | ); |
||
272 | |||
273 | /** |
||
274 | * M-Table |
||
275 | * |
||
276 | * @var array |
||
277 | * @access private |
||
278 | */ |
||
279 | public $m3 = array( |
||
280 | 0xD939A9D9, 0x90176790, 0x719CB371, 0xD2A6E8D2, 0x05070405, 0x9852FD98, 0x6580A365, 0xDFE476DF, |
||
281 | 0x08459A08, 0x024B9202, 0xA0E080A0, 0x665A7866, 0xDDAFE4DD, 0xB06ADDB0, 0xBF63D1BF, 0x362A3836, |
||
282 | 0x54E60D54, 0x4320C643, 0x62CC3562, 0xBEF298BE, 0x1E12181E, 0x24EBF724, 0xD7A1ECD7, 0x77416C77, |
||
283 | 0xBD2843BD, 0x32BC7532, 0xD47B37D4, 0x9B88269B, 0x700DFA70, 0xF94413F9, 0xB1FB94B1, 0x5A7E485A, |
||
284 | 0x7A03F27A, 0xE48CD0E4, 0x47B68B47, 0x3C24303C, 0xA5E784A5, 0x416B5441, 0x06DDDF06, 0xC56023C5, |
||
285 | 0x45FD1945, 0xA33A5BA3, 0x68C23D68, 0x158D5915, 0x21ECF321, 0x3166AE31, 0x3E6FA23E, 0x16578216, |
||
286 | 0x95106395, 0x5BEF015B, 0x4DB8834D, 0x91862E91, 0xB56DD9B5, 0x1F83511F, 0x53AA9B53, 0x635D7C63, |
||
287 | 0x3B68A63B, 0x3FFEEB3F, 0xD630A5D6, 0x257ABE25, 0xA7AC16A7, 0x0F090C0F, 0x35F0E335, 0x23A76123, |
||
288 | 0xF090C0F0, 0xAFE98CAF, 0x809D3A80, 0x925CF592, 0x810C7381, 0x27312C27, 0x76D02576, 0xE7560BE7, |
||
289 | 0x7B92BB7B, 0xE9CE4EE9, 0xF10189F1, 0x9F1E6B9F, 0xA93453A9, 0xC4F16AC4, 0x99C3B499, 0x975BF197, |
||
290 | 0x8347E183, 0x6B18E66B, 0xC822BDC8, 0x0E98450E, 0x6E1FE26E, 0xC9B3F4C9, 0x2F74B62F, 0xCBF866CB, |
||
291 | 0xFF99CCFF, 0xEA1495EA, 0xED5803ED, 0xF7DC56F7, 0xE18BD4E1, 0x1B151C1B, 0xADA21EAD, 0x0CD3D70C, |
||
292 | 0x2BE2FB2B, 0x1DC8C31D, 0x195E8E19, 0xC22CB5C2, 0x8949E989, 0x12C1CF12, 0x7E95BF7E, 0x207DBA20, |
||
293 | 0x6411EA64, 0x840B7784, 0x6DC5396D, 0x6A89AF6A, 0xD17C33D1, 0xA171C9A1, 0xCEFF62CE, 0x37BB7137, |
||
294 | 0xFB0F81FB, 0x3DB5793D, 0x51E10951, 0xDC3EADDC, 0x2D3F242D, 0xA476CDA4, 0x9D55F99D, 0xEE82D8EE, |
||
295 | 0x8640E586, 0xAE78C5AE, 0xCD25B9CD, 0x04964D04, 0x55774455, 0x0A0E080A, 0x13508613, 0x30F7E730, |
||
296 | 0xD337A1D3, 0x40FA1D40, 0x3461AA34, 0x8C4EED8C, 0xB3B006B3, 0x6C54706C, 0x2A73B22A, 0x523BD252, |
||
297 | 0x0B9F410B, 0x8B027B8B, 0x88D8A088, 0x4FF3114F, 0x67CB3167, 0x4627C246, 0xC06727C0, 0xB4FC90B4, |
||
298 | 0x28382028, 0x7F04F67F, 0x78486078, 0x2EE5FF2E, 0x074C9607, 0x4B655C4B, 0xC72BB1C7, 0x6F8EAB6F, |
||
299 | 0x0D429E0D, 0xBBF59CBB, 0xF2DB52F2, 0xF34A1BF3, 0xA63D5FA6, 0x59A49359, 0xBCB90ABC, 0x3AF9EF3A, |
||
300 | 0xEF1391EF, 0xFE0885FE, 0x01914901, 0x6116EE61, 0x7CDE2D7C, 0xB2214FB2, 0x42B18F42, 0xDB723BDB, |
||
301 | 0xB82F47B8, 0x48BF8748, 0x2CAE6D2C, 0xE3C046E3, 0x573CD657, 0x859A3E85, 0x29A96929, 0x7D4F647D, |
||
302 | 0x94812A94, 0x492ECE49, 0x17C6CB17, 0xCA692FCA, 0xC3BDFCC3, 0x5CA3975C, 0x5EE8055E, 0xD0ED7AD0, |
||
303 | 0x87D1AC87, 0x8E057F8E, 0xBA64D5BA, 0xA8A51AA8, 0xB7264BB7, 0xB9BE0EB9, 0x6087A760, 0xF8D55AF8, |
||
304 | 0x22362822, 0x111B1411, 0xDE753FDE, 0x79D92979, 0xAAEE88AA, 0x332D3C33, 0x5F794C5F, 0xB6B702B6, |
||
305 | 0x96CAB896, 0x5835DA58, 0x9CC4B09C, 0xFC4317FC, 0x1A84551A, 0xF64D1FF6, 0x1C598A1C, 0x38B27D38, |
||
306 | 0xAC3357AC, 0x18CFC718, 0xF4068DF4, 0x69537469, 0x749BB774, 0xF597C4F5, 0x56AD9F56, 0xDAE372DA, |
||
307 | 0xD5EA7ED5, 0x4AF4154A, 0x9E8F229E, 0xA2AB12A2, 0x4E62584E, 0xE85F07E8, 0xE51D99E5, 0x39233439, |
||
308 | 0xC1F66EC1, 0x446C5044, 0x5D32DE5D, 0x72466872, 0x26A06526, 0x93CDBC93, 0x03DADB03, 0xC6BAF8C6, |
||
309 | 0xFA9EC8FA, 0x82D6A882, 0xCF6E2BCF, 0x50704050, 0xEB85DCEB, 0x750AFE75, 0x8A93328A, 0x8DDFA48D, |
||
310 | 0x4C29CA4C, 0x141C1014, 0x73D72173, 0xCCB4F0CC, 0x09D4D309, 0x108A5D10, 0xE2510FE2, 0x00000000, |
||
311 | 0x9A196F9A, 0xE01A9DE0, 0x8F94368F, 0xE6C742E6, 0xECC94AEC, 0xFDD25EFD, 0xAB7FC1AB, 0xD8A8E0D8 |
||
312 | ); |
||
313 | |||
314 | /** |
||
315 | * The Key Schedule Array |
||
316 | * |
||
317 | * @var array |
||
318 | * @access private |
||
319 | */ |
||
320 | public $K = array(); |
||
321 | |||
322 | /** |
||
323 | * The Key depended S-Table 0 |
||
324 | * |
||
325 | * @var array |
||
326 | * @access private |
||
327 | */ |
||
328 | public $S0 = array(); |
||
329 | |||
330 | /** |
||
331 | * The Key depended S-Table 1 |
||
332 | * |
||
333 | * @var array |
||
334 | * @access private |
||
335 | */ |
||
336 | public $S1 = array(); |
||
337 | |||
338 | /** |
||
339 | * The Key depended S-Table 2 |
||
340 | * |
||
341 | * @var array |
||
342 | * @access private |
||
343 | */ |
||
344 | public $S2 = array(); |
||
345 | |||
346 | /** |
||
347 | * The Key depended S-Table 3 |
||
348 | * |
||
349 | * @var array |
||
350 | * @access private |
||
351 | */ |
||
352 | public $S3 = array(); |
||
353 | |||
354 | /** |
||
355 | * Holds the last used key |
||
356 | * |
||
357 | * @var array |
||
358 | * @access private |
||
359 | */ |
||
360 | public $kl; |
||
361 | |||
362 | /** |
||
363 | * The Key Length (in bytes) |
||
364 | * |
||
365 | * @see Crypt_Twofish::setKeyLength() |
||
366 | * @var int |
||
367 | * @access private |
||
368 | */ |
||
369 | public $key_length = 16; |
||
370 | |||
371 | /** |
||
372 | * Sets the key length. |
||
373 | * |
||
374 | * Valid key lengths are 128, 192 or 256 bits |
||
375 | * |
||
376 | * @access public |
||
377 | * @param int $length |
||
378 | */ |
||
379 | public function setKeyLength($length) |
||
380 | { |
||
381 | switch (true) { |
||
382 | case $length <= 128: |
||
383 | $this->key_length = 16; |
||
384 | break; |
||
385 | case $length <= 192: |
||
386 | $this->key_length = 24; |
||
387 | break; |
||
388 | default: |
||
389 | $this->key_length = 32; |
||
390 | } |
||
391 | |||
392 | parent::setKeyLength($length); |
||
393 | } |
||
394 | |||
395 | /** |
||
396 | * Setup the key (expansion) |
||
397 | * |
||
398 | * @see \phpseclib\Crypt\Base::_setupKey() |
||
399 | * @access private |
||
400 | */ |
||
401 | public function _setupKey() |
||
402 | { |
||
403 | if (isset($this->kl['key']) && $this->key === $this->kl['key']) { |
||
404 | // already expanded |
||
405 | return; |
||
406 | } |
||
407 | $this->kl = array('key' => $this->key); |
||
408 | |||
409 | /* Key expanding and generating the key-depended s-boxes */ |
||
410 | $le_longs = unpack('V*', $this->key); |
||
411 | $key = unpack('C*', $this->key); |
||
412 | $m0 = $this->m0; |
||
413 | $m1 = $this->m1; |
||
414 | $m2 = $this->m2; |
||
415 | $m3 = $this->m3; |
||
416 | $q0 = $this->q0; |
||
417 | $q1 = $this->q1; |
||
418 | |||
419 | $K = $S0 = $S1 = $S2 = $S3 = array(); |
||
420 | |||
421 | switch (strlen($this->key)) { |
||
422 | case 16: |
||
423 | list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[1], $le_longs[2]); |
||
424 | list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[3], $le_longs[4]); |
||
425 | for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) { |
||
426 | $A = $m0[$q0[$q0[$i] ^ $key[ 9]] ^ $key[1]] ^ |
||
427 | $m1[$q0[$q1[$i] ^ $key[10]] ^ $key[2]] ^ |
||
428 | $m2[$q1[$q0[$i] ^ $key[11]] ^ $key[3]] ^ |
||
429 | $m3[$q1[$q1[$i] ^ $key[12]] ^ $key[4]]; |
||
430 | $B = $m0[$q0[$q0[$j] ^ $key[13]] ^ $key[5]] ^ |
||
431 | $m1[$q0[$q1[$j] ^ $key[14]] ^ $key[6]] ^ |
||
432 | $m2[$q1[$q0[$j] ^ $key[15]] ^ $key[7]] ^ |
||
433 | $m3[$q1[$q1[$j] ^ $key[16]] ^ $key[8]]; |
||
434 | $B = ($B << 8) | ($B >> 24 & 0xff); |
||
435 | $K[] = $A+= $B; |
||
436 | $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); |
||
437 | } |
||
438 | for ($i = 0; $i < 256; ++$i) { |
||
439 | $S0[$i] = $m0[$q0[$q0[$i] ^ $s4] ^ $s0]; |
||
440 | $S1[$i] = $m1[$q0[$q1[$i] ^ $s5] ^ $s1]; |
||
441 | $S2[$i] = $m2[$q1[$q0[$i] ^ $s6] ^ $s2]; |
||
442 | $S3[$i] = $m3[$q1[$q1[$i] ^ $s7] ^ $s3]; |
||
443 | } |
||
444 | break; |
||
445 | case 24: |
||
446 | list($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[1], $le_longs[2]); |
||
447 | list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[3], $le_longs[4]); |
||
448 | list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[5], $le_longs[6]); |
||
449 | for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) { |
||
450 | $A = $m0[$q0[$q0[$q1[$i] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^ |
||
451 | $m1[$q0[$q1[$q1[$i] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^ |
||
452 | $m2[$q1[$q0[$q0[$i] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^ |
||
453 | $m3[$q1[$q1[$q0[$i] ^ $key[20]] ^ $key[12]] ^ $key[4]]; |
||
454 | $B = $m0[$q0[$q0[$q1[$j] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^ |
||
455 | $m1[$q0[$q1[$q1[$j] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^ |
||
456 | $m2[$q1[$q0[$q0[$j] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^ |
||
457 | $m3[$q1[$q1[$q0[$j] ^ $key[24]] ^ $key[16]] ^ $key[8]]; |
||
458 | $B = ($B << 8) | ($B >> 24 & 0xff); |
||
459 | $K[] = $A+= $B; |
||
460 | $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); |
||
461 | } |
||
462 | for ($i = 0; $i < 256; ++$i) { |
||
463 | $S0[$i] = $m0[$q0[$q0[$q1[$i] ^ $s8] ^ $s4] ^ $s0]; |
||
464 | $S1[$i] = $m1[$q0[$q1[$q1[$i] ^ $s9] ^ $s5] ^ $s1]; |
||
465 | $S2[$i] = $m2[$q1[$q0[$q0[$i] ^ $sa] ^ $s6] ^ $s2]; |
||
466 | $S3[$i] = $m3[$q1[$q1[$q0[$i] ^ $sb] ^ $s7] ^ $s3]; |
||
467 | } |
||
468 | break; |
||
469 | default: // 32 |
||
470 | list($sf, $se, $sd, $sc) = $this->_mdsrem($le_longs[1], $le_longs[2]); |
||
471 | list($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[3], $le_longs[4]); |
||
472 | list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[5], $le_longs[6]); |
||
473 | list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[7], $le_longs[8]); |
||
474 | for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) { |
||
475 | $A = $m0[$q0[$q0[$q1[$q1[$i] ^ $key[25]] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^ |
||
476 | $m1[$q0[$q1[$q1[$q0[$i] ^ $key[26]] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^ |
||
477 | $m2[$q1[$q0[$q0[$q0[$i] ^ $key[27]] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^ |
||
478 | $m3[$q1[$q1[$q0[$q1[$i] ^ $key[28]] ^ $key[20]] ^ $key[12]] ^ $key[4]]; |
||
479 | $B = $m0[$q0[$q0[$q1[$q1[$j] ^ $key[29]] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^ |
||
480 | $m1[$q0[$q1[$q1[$q0[$j] ^ $key[30]] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^ |
||
481 | $m2[$q1[$q0[$q0[$q0[$j] ^ $key[31]] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^ |
||
482 | $m3[$q1[$q1[$q0[$q1[$j] ^ $key[32]] ^ $key[24]] ^ $key[16]] ^ $key[8]]; |
||
483 | $B = ($B << 8) | ($B >> 24 & 0xff); |
||
484 | $K[] = $A+= $B; |
||
485 | $K[] = (($A+= $B) << 9 | $A >> 23 & 0x1ff); |
||
486 | } |
||
487 | for ($i = 0; $i < 256; ++$i) { |
||
488 | $S0[$i] = $m0[$q0[$q0[$q1[$q1[$i] ^ $sc] ^ $s8] ^ $s4] ^ $s0]; |
||
489 | $S1[$i] = $m1[$q0[$q1[$q1[$q0[$i] ^ $sd] ^ $s9] ^ $s5] ^ $s1]; |
||
490 | $S2[$i] = $m2[$q1[$q0[$q0[$q0[$i] ^ $se] ^ $sa] ^ $s6] ^ $s2]; |
||
491 | $S3[$i] = $m3[$q1[$q1[$q0[$q1[$i] ^ $sf] ^ $sb] ^ $s7] ^ $s3]; |
||
492 | } |
||
493 | } |
||
494 | |||
495 | $this->K = $K; |
||
496 | $this->S0 = $S0; |
||
497 | $this->S1 = $S1; |
||
498 | $this->S2 = $S2; |
||
499 | $this->S3 = $S3; |
||
500 | } |
||
501 | |||
502 | /** |
||
503 | * _mdsrem function using by the twofish cipher algorithm |
||
504 | * |
||
505 | * @access private |
||
506 | * @param string $A |
||
507 | * @param string $B |
||
508 | * @return array |
||
509 | */ |
||
510 | public function _mdsrem($A, $B) |
||
511 | { |
||
512 | // No gain by unrolling this loop. |
||
513 | for ($i = 0; $i < 8; ++$i) { |
||
514 | // Get most significant coefficient. |
||
515 | $t = 0xff & ($B >> 24); |
||
516 | |||
517 | // Shift the others up. |
||
518 | $B = ($B << 8) | (0xff & ($A >> 24)); |
||
519 | $A<<= 8; |
||
520 | |||
521 | $u = $t << 1; |
||
522 | |||
523 | // Subtract the modular polynomial on overflow. |
||
524 | if ($t & 0x80) { |
||
525 | $u^= 0x14d; |
||
526 | } |
||
527 | |||
528 | // Remove t * (a * x^2 + 1). |
||
529 | $B ^= $t ^ ($u << 16); |
||
530 | |||
531 | // Form u = a*t + t/a = t*(a + 1/a). |
||
532 | $u^= 0x7fffffff & ($t >> 1); |
||
533 | |||
534 | // Add the modular polynomial on underflow. |
||
535 | if ($t & 0x01) { |
||
536 | $u^= 0xa6 ; |
||
537 | } |
||
538 | |||
539 | // Remove t * (a + 1/a) * (x^3 + x). |
||
540 | $B^= ($u << 24) | ($u << 8); |
||
541 | } |
||
542 | |||
543 | return array( |
||
544 | 0xff & $B >> 24, |
||
545 | 0xff & $B >> 16, |
||
546 | 0xff & $B >> 8, |
||
547 | 0xff & $B); |
||
548 | } |
||
549 | |||
550 | /** |
||
551 | * Encrypts a block |
||
552 | * |
||
553 | * @access private |
||
554 | * @param string $in |
||
555 | * @return string |
||
556 | */ |
||
557 | public function _encryptBlock($in) |
||
558 | { |
||
559 | $S0 = $this->S0; |
||
560 | $S1 = $this->S1; |
||
561 | $S2 = $this->S2; |
||
562 | $S3 = $this->S3; |
||
563 | $K = $this->K; |
||
564 | |||
565 | $in = unpack("V4", $in); |
||
566 | $R0 = $K[0] ^ $in[1]; |
||
567 | $R1 = $K[1] ^ $in[2]; |
||
568 | $R2 = $K[2] ^ $in[3]; |
||
569 | $R3 = $K[3] ^ $in[4]; |
||
570 | |||
571 | $ki = 7; |
||
572 | while ($ki < 39) { |
||
573 | $t0 = $S0[ $R0 & 0xff] ^ |
||
574 | $S1[($R0 >> 8) & 0xff] ^ |
||
575 | $S2[($R0 >> 16) & 0xff] ^ |
||
576 | $S3[($R0 >> 24) & 0xff]; |
||
577 | $t1 = $S0[($R1 >> 24) & 0xff] ^ |
||
578 | $S1[ $R1 & 0xff] ^ |
||
579 | $S2[($R1 >> 8) & 0xff] ^ |
||
580 | $S3[($R1 >> 16) & 0xff]; |
||
581 | $R2^= $t0 + $t1 + $K[++$ki]; |
||
582 | $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31); |
||
583 | $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ ($t0 + ($t1 << 1) + $K[++$ki]); |
||
584 | |||
585 | $t0 = $S0[ $R2 & 0xff] ^ |
||
586 | $S1[($R2 >> 8) & 0xff] ^ |
||
587 | $S2[($R2 >> 16) & 0xff] ^ |
||
588 | $S3[($R2 >> 24) & 0xff]; |
||
589 | $t1 = $S0[($R3 >> 24) & 0xff] ^ |
||
590 | $S1[ $R3 & 0xff] ^ |
||
591 | $S2[($R3 >> 8) & 0xff] ^ |
||
592 | $S3[($R3 >> 16) & 0xff]; |
||
593 | $R0^= ($t0 + $t1 + $K[++$ki]); |
||
594 | $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31); |
||
595 | $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ ($t0 + ($t1 << 1) + $K[++$ki]); |
||
596 | } |
||
597 | |||
598 | // @codingStandardsIgnoreStart |
||
599 | return pack( |
||
600 | "V4", |
||
601 | $K[4] ^ $R2, |
||
602 | $K[5] ^ $R3, |
||
603 | $K[6] ^ $R0, |
||
604 | $K[7] ^ $R1 |
||
605 | ); |
||
606 | // @codingStandardsIgnoreEnd |
||
607 | } |
||
608 | |||
609 | /** |
||
610 | * Decrypts a block |
||
611 | * |
||
612 | * @access private |
||
613 | * @param string $in |
||
614 | * @return string |
||
615 | */ |
||
616 | public function _decryptBlock($in) |
||
617 | { |
||
618 | $S0 = $this->S0; |
||
619 | $S1 = $this->S1; |
||
620 | $S2 = $this->S2; |
||
621 | $S3 = $this->S3; |
||
622 | $K = $this->K; |
||
623 | |||
624 | $in = unpack("V4", $in); |
||
625 | $R0 = $K[4] ^ $in[1]; |
||
626 | $R1 = $K[5] ^ $in[2]; |
||
627 | $R2 = $K[6] ^ $in[3]; |
||
628 | $R3 = $K[7] ^ $in[4]; |
||
629 | |||
630 | $ki = 40; |
||
631 | while ($ki > 8) { |
||
632 | $t0 = $S0[$R0 & 0xff] ^ |
||
633 | $S1[$R0 >> 8 & 0xff] ^ |
||
634 | $S2[$R0 >> 16 & 0xff] ^ |
||
635 | $S3[$R0 >> 24 & 0xff]; |
||
636 | $t1 = $S0[$R1 >> 24 & 0xff] ^ |
||
637 | $S1[$R1 & 0xff] ^ |
||
638 | $S2[$R1 >> 8 & 0xff] ^ |
||
639 | $S3[$R1 >> 16 & 0xff]; |
||
640 | $R3^= $t0 + ($t1 << 1) + $K[--$ki]; |
||
641 | $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31; |
||
642 | $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ ($t0 + $t1 + $K[--$ki]); |
||
643 | |||
644 | $t0 = $S0[$R2 & 0xff] ^ |
||
645 | $S1[$R2 >> 8 & 0xff] ^ |
||
646 | $S2[$R2 >> 16 & 0xff] ^ |
||
647 | $S3[$R2 >> 24 & 0xff]; |
||
648 | $t1 = $S0[$R3 >> 24 & 0xff] ^ |
||
649 | $S1[$R3 & 0xff] ^ |
||
650 | $S2[$R3 >> 8 & 0xff] ^ |
||
651 | $S3[$R3 >> 16 & 0xff]; |
||
652 | $R1^= $t0 + ($t1 << 1) + $K[--$ki]; |
||
653 | $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31; |
||
654 | $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ ($t0 + $t1 + $K[--$ki]); |
||
655 | } |
||
656 | |||
657 | // @codingStandardsIgnoreStart |
||
658 | return pack( |
||
659 | "V4", |
||
660 | $K[0] ^ $R2, |
||
661 | $K[1] ^ $R3, |
||
662 | $K[2] ^ $R0, |
||
663 | $K[3] ^ $R1 |
||
664 | ); |
||
665 | // @codingStandardsIgnoreEnd |
||
666 | } |
||
667 | |||
668 | /** |
||
669 | * Setup the performance-optimized function for de/encrypt() |
||
670 | * |
||
671 | * @see \phpseclib\Crypt\Base::_setupInlineCrypt() |
||
672 | * @access private |
||
673 | */ |
||
674 | public function _setupInlineCrypt() |
||
675 | { |
||
676 | $lambda_functions =& self::_getLambdaFunctions(); |
||
0 ignored issues
–
show
Bug
Best Practice
introduced
by
Loading history...
|
|||
677 | |||
678 | // Max. 10 Ultra-Hi-optimized inline-crypt functions. After that, we'll (still) create very fast code, but not the ultimate fast one. |
||
679 | // (Currently, for Crypt_Twofish, one generated $lambda_function cost on php5.5@32bit ~140kb unfreeable mem and ~240kb on php5.5@64bit) |
||
680 | $gen_hi_opt_code = (bool)(count($lambda_functions) < 10); |
||
681 | |||
682 | // Generation of a unique hash for our generated code |
||
683 | $code_hash = "Crypt_Twofish, {$this->mode}"; |
||
684 | if ($gen_hi_opt_code) { |
||
685 | $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key); |
||
686 | } |
||
687 | |||
688 | if (!isset($lambda_functions[$code_hash])) { |
||
689 | switch (true) { |
||
690 | case $gen_hi_opt_code: |
||
691 | $K = $this->K; |
||
692 | $init_crypt = ' |
||
693 | static $S0, $S1, $S2, $S3; |
||
694 | if (!$S0) { |
||
695 | for ($i = 0; $i < 256; ++$i) { |
||
696 | $S0[] = (int)$self->S0[$i]; |
||
697 | $S1[] = (int)$self->S1[$i]; |
||
698 | $S2[] = (int)$self->S2[$i]; |
||
699 | $S3[] = (int)$self->S3[$i]; |
||
700 | } |
||
701 | } |
||
702 | '; |
||
703 | break; |
||
704 | default: |
||
705 | $K = array(); |
||
706 | for ($i = 0; $i < 40; ++$i) { |
||
707 | $K[] = '$K_' . $i; |
||
708 | } |
||
709 | $init_crypt = ' |
||
710 | $S0 = $self->S0; |
||
711 | $S1 = $self->S1; |
||
712 | $S2 = $self->S2; |
||
713 | $S3 = $self->S3; |
||
714 | list(' . implode(',', $K) . ') = $self->K; |
||
715 | '; |
||
716 | } |
||
717 | |||
718 | // Generating encrypt code: |
||
719 | $encrypt_block = ' |
||
720 | $in = unpack("V4", $in); |
||
721 | $R0 = ' . $K[0] . ' ^ $in[1]; |
||
722 | $R1 = ' . $K[1] . ' ^ $in[2]; |
||
723 | $R2 = ' . $K[2] . ' ^ $in[3]; |
||
724 | $R3 = ' . $K[3] . ' ^ $in[4]; |
||
725 | '; |
||
726 | for ($ki = 7, $i = 0; $i < 8; ++$i) { |
||
727 | $encrypt_block.= ' |
||
728 | $t0 = $S0[ $R0 & 0xff] ^ |
||
729 | $S1[($R0 >> 8) & 0xff] ^ |
||
730 | $S2[($R0 >> 16) & 0xff] ^ |
||
731 | $S3[($R0 >> 24) & 0xff]; |
||
732 | $t1 = $S0[($R1 >> 24) & 0xff] ^ |
||
733 | $S1[ $R1 & 0xff] ^ |
||
734 | $S2[($R1 >> 8) & 0xff] ^ |
||
735 | $S3[($R1 >> 16) & 0xff]; |
||
736 | $R2^= ($t0 + $t1 + ' . $K[++$ki] . '); |
||
737 | $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31); |
||
738 | $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ ($t0 + ($t1 << 1) + ' . $K[++$ki] . '); |
||
739 | |||
740 | $t0 = $S0[ $R2 & 0xff] ^ |
||
741 | $S1[($R2 >> 8) & 0xff] ^ |
||
742 | $S2[($R2 >> 16) & 0xff] ^ |
||
743 | $S3[($R2 >> 24) & 0xff]; |
||
744 | $t1 = $S0[($R3 >> 24) & 0xff] ^ |
||
745 | $S1[ $R3 & 0xff] ^ |
||
746 | $S2[($R3 >> 8) & 0xff] ^ |
||
747 | $S3[($R3 >> 16) & 0xff]; |
||
748 | $R0^= ($t0 + $t1 + ' . $K[++$ki] . '); |
||
749 | $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31); |
||
750 | $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ ($t0 + ($t1 << 1) + ' . $K[++$ki] . '); |
||
751 | '; |
||
752 | } |
||
753 | $encrypt_block.= ' |
||
754 | $in = pack("V4", ' . $K[4] . ' ^ $R2, |
||
755 | ' . $K[5] . ' ^ $R3, |
||
756 | ' . $K[6] . ' ^ $R0, |
||
757 | ' . $K[7] . ' ^ $R1); |
||
758 | '; |
||
759 | |||
760 | // Generating decrypt code: |
||
761 | $decrypt_block = ' |
||
762 | $in = unpack("V4", $in); |
||
763 | $R0 = ' . $K[4] . ' ^ $in[1]; |
||
764 | $R1 = ' . $K[5] . ' ^ $in[2]; |
||
765 | $R2 = ' . $K[6] . ' ^ $in[3]; |
||
766 | $R3 = ' . $K[7] . ' ^ $in[4]; |
||
767 | '; |
||
768 | for ($ki = 40, $i = 0; $i < 8; ++$i) { |
||
769 | $decrypt_block.= ' |
||
770 | $t0 = $S0[$R0 & 0xff] ^ |
||
771 | $S1[$R0 >> 8 & 0xff] ^ |
||
772 | $S2[$R0 >> 16 & 0xff] ^ |
||
773 | $S3[$R0 >> 24 & 0xff]; |
||
774 | $t1 = $S0[$R1 >> 24 & 0xff] ^ |
||
775 | $S1[$R1 & 0xff] ^ |
||
776 | $S2[$R1 >> 8 & 0xff] ^ |
||
777 | $S3[$R1 >> 16 & 0xff]; |
||
778 | $R3^= $t0 + ($t1 << 1) + ' . $K[--$ki] . '; |
||
779 | $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31; |
||
780 | $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ ($t0 + $t1 + ' . $K[--$ki] . '); |
||
781 | |||
782 | $t0 = $S0[$R2 & 0xff] ^ |
||
783 | $S1[$R2 >> 8 & 0xff] ^ |
||
784 | $S2[$R2 >> 16 & 0xff] ^ |
||
785 | $S3[$R2 >> 24 & 0xff]; |
||
786 | $t1 = $S0[$R3 >> 24 & 0xff] ^ |
||
787 | $S1[$R3 & 0xff] ^ |
||
788 | $S2[$R3 >> 8 & 0xff] ^ |
||
789 | $S3[$R3 >> 16 & 0xff]; |
||
790 | $R1^= $t0 + ($t1 << 1) + ' . $K[--$ki] . '; |
||
791 | $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31; |
||
792 | $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ ($t0 + $t1 + ' . $K[--$ki] . '); |
||
793 | '; |
||
794 | } |
||
795 | $decrypt_block.= ' |
||
796 | $in = pack("V4", ' . $K[0] . ' ^ $R2, |
||
797 | ' . $K[1] . ' ^ $R3, |
||
798 | ' . $K[2] . ' ^ $R0, |
||
799 | ' . $K[3] . ' ^ $R1); |
||
800 | '; |
||
801 | |||
802 | $lambda_functions[$code_hash] = $this->_createInlineCryptFunction( |
||
803 | array( |
||
804 | 'init_crypt' => $init_crypt, |
||
805 | 'init_encrypt' => '', |
||
806 | 'init_decrypt' => '', |
||
807 | 'encrypt_block' => $encrypt_block, |
||
808 | 'decrypt_block' => $decrypt_block |
||
809 | ) |
||
810 | ); |
||
811 | } |
||
812 | $this->inline_crypt = $lambda_functions[$code_hash]; |
||
813 | } |
||
814 | } |
||
815 |