Commit 13543432e645183e79ad4e626fa8f0de0d5c02bb
Put BCrypt.java in a package in order to avoid namespace clashes.
Signed-off-by: Coda Hale <coda.hale@gmail.com>Hongli Lai (Phusion) authored on 8/4/2009, 9:17:45 PM
Coda Hale committed on 8/12/2009, 9:54:48 PM
Parent: a1c41622dfe104ad5b01768ae941647bf9b96a69
Files changed
| ext/jruby/BCrypt.java | deleted |
| ext/jruby/bcrypt_jruby/BCrypt.java | added |
| ext/jruby/BCrypt.java | ||
|---|---|---|
| @@ -1,750 +1,0 @@ | ||
| 1 | -// Copyright (c) 2006 Damien Miller <djm@mindrot.org> | |
| 2 | -// | |
| 3 | -// Permission to use, copy, modify, and distribute this software for any | |
| 4 | -// purpose with or without fee is hereby granted, provided that the above | |
| 5 | -// copyright notice and this permission notice appear in all copies. | |
| 6 | -// | |
| 7 | -// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 8 | -// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 9 | -// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 10 | -// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 11 | -// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 12 | -// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 13 | -// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 14 | - | |
| 15 | -import java.io.UnsupportedEncodingException; | |
| 16 | - | |
| 17 | -import java.security.SecureRandom; | |
| 18 | - | |
| 19 | -/** | |
| 20 | - * BCrypt implements OpenBSD-style Blowfish password hashing using | |
| 21 | - * the scheme described in "A Future-Adaptable Password Scheme" by | |
| 22 | - * Niels Provos and David Mazieres. | |
| 23 | - * <p> | |
| 24 | - * This password hashing system tries to thwart off-line password | |
| 25 | - * cracking using a computationally-intensive hashing algorithm, | |
| 26 | - * based on Bruce Schneier's Blowfish cipher. The work factor of | |
| 27 | - * the algorithm is parameterised, so it can be increased as | |
| 28 | - * computers get faster. | |
| 29 | - * <p> | |
| 30 | - * Usage is really simple. To hash a password for the first time, | |
| 31 | - * call the hashpw method with a random salt, like this: | |
| 32 | - * <p> | |
| 33 | - * <code> | |
| 34 | - * String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt()); <br /> | |
| 35 | - * </code> | |
| 36 | - * <p> | |
| 37 | - * To check whether a plaintext password matches one that has been | |
| 38 | - * hashed previously, use the checkpw method: | |
| 39 | - * <p> | |
| 40 | - * <code> | |
| 41 | - * if (BCrypt.checkpw(candidate_password, stored_hash))<br /> | |
| 42 | - * System.out.println("It matches");<br /> | |
| 43 | - * else<br /> | |
| 44 | - * System.out.println("It does not match");<br /> | |
| 45 | - * </code> | |
| 46 | - * <p> | |
| 47 | - * The gensalt() method takes an optional parameter (log_rounds) | |
| 48 | - * that determines the computational complexity of the hashing: | |
| 49 | - * <p> | |
| 50 | - * <code> | |
| 51 | - * String strong_salt = BCrypt.gensalt(10)<br /> | |
| 52 | - * String stronger_salt = BCrypt.gensalt(12)<br /> | |
| 53 | - * </code> | |
| 54 | - * <p> | |
| 55 | - * The amount of work increases exponentially (2**log_rounds), so | |
| 56 | - * each increment is twice as much work. The default log_rounds is | |
| 57 | - * 10, and the valid range is 4 to 31. | |
| 58 | - * | |
| 59 | - * Damien Miller | |
| 60 | - * 0.2 | |
| 61 | - */ | |
| 62 | -public class BCrypt { | |
| 63 | - // BCrypt parameters | |
| 64 | - private static int GENSALT_DEFAULT_LOG2_ROUNDS = 10; | |
| 65 | - private static final int BCRYPT_SALT_LEN = 16; | |
| 66 | - | |
| 67 | - // Blowfish parameters | |
| 68 | - private static final int BLOWFISH_NUM_ROUNDS = 16; | |
| 69 | - | |
| 70 | - // Initial contents of key schedule | |
| 71 | - private static final int P_orig[] = { | |
| 72 | - 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, | |
| 73 | - 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, | |
| 74 | - 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, | |
| 75 | - 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, | |
| 76 | - 0x9216d5d9, 0x8979fb1b | |
| 77 | - }; | |
| 78 | - private static final int S_orig[] = { | |
| 79 | - 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, | |
| 80 | - 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, | |
| 81 | - 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, | |
| 82 | - 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, | |
| 83 | - 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, | |
| 84 | - 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, | |
| 85 | - 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, | |
| 86 | - 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, | |
| 87 | - 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, | |
| 88 | - 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, | |
| 89 | - 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, | |
| 90 | - 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, | |
| 91 | - 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, | |
| 92 | - 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, | |
| 93 | - 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, | |
| 94 | - 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, | |
| 95 | - 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, | |
| 96 | - 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, | |
| 97 | - 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, | |
| 98 | - 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, | |
| 99 | - 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, | |
| 100 | - 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, | |
| 101 | - 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, | |
| 102 | - 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, | |
| 103 | - 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, | |
| 104 | - 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, | |
| 105 | - 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, | |
| 106 | - 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, | |
| 107 | - 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, | |
| 108 | - 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, | |
| 109 | - 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, | |
| 110 | - 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, | |
| 111 | - 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, | |
| 112 | - 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, | |
| 113 | - 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, | |
| 114 | - 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, | |
| 115 | - 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, | |
| 116 | - 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, | |
| 117 | - 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, | |
| 118 | - 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, | |
| 119 | - 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, | |
| 120 | - 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, | |
| 121 | - 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, | |
| 122 | - 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, | |
| 123 | - 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, | |
| 124 | - 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, | |
| 125 | - 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, | |
| 126 | - 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, | |
| 127 | - 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, | |
| 128 | - 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, | |
| 129 | - 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, | |
| 130 | - 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, | |
| 131 | - 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, | |
| 132 | - 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, | |
| 133 | - 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, | |
| 134 | - 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, | |
| 135 | - 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, | |
| 136 | - 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, | |
| 137 | - 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, | |
| 138 | - 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, | |
| 139 | - 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, | |
| 140 | - 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, | |
| 141 | - 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, | |
| 142 | - 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, | |
| 143 | - 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, | |
| 144 | - 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, | |
| 145 | - 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, | |
| 146 | - 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, | |
| 147 | - 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, | |
| 148 | - 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, | |
| 149 | - 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, | |
| 150 | - 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, | |
| 151 | - 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, | |
| 152 | - 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, | |
| 153 | - 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, | |
| 154 | - 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, | |
| 155 | - 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, | |
| 156 | - 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, | |
| 157 | - 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, | |
| 158 | - 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, | |
| 159 | - 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, | |
| 160 | - 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, | |
| 161 | - 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, | |
| 162 | - 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, | |
| 163 | - 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, | |
| 164 | - 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, | |
| 165 | - 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, | |
| 166 | - 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, | |
| 167 | - 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, | |
| 168 | - 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, | |
| 169 | - 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, | |
| 170 | - 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, | |
| 171 | - 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, | |
| 172 | - 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, | |
| 173 | - 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, | |
| 174 | - 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, | |
| 175 | - 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, | |
| 176 | - 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, | |
| 177 | - 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, | |
| 178 | - 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, | |
| 179 | - 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, | |
| 180 | - 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, | |
| 181 | - 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, | |
| 182 | - 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, | |
| 183 | - 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, | |
| 184 | - 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, | |
| 185 | - 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, | |
| 186 | - 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, | |
| 187 | - 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, | |
| 188 | - 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, | |
| 189 | - 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, | |
| 190 | - 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, | |
| 191 | - 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, | |
| 192 | - 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, | |
| 193 | - 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, | |
| 194 | - 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, | |
| 195 | - 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, | |
| 196 | - 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, | |
| 197 | - 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, | |
| 198 | - 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, | |
| 199 | - 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, | |
| 200 | - 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, | |
| 201 | - 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, | |
| 202 | - 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, | |
| 203 | - 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, | |
| 204 | - 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, | |
| 205 | - 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, | |
| 206 | - 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, | |
| 207 | - 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, | |
| 208 | - 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, | |
| 209 | - 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, | |
| 210 | - 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, | |
| 211 | - 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, | |
| 212 | - 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, | |
| 213 | - 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, | |
| 214 | - 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, | |
| 215 | - 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, | |
| 216 | - 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, | |
| 217 | - 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, | |
| 218 | - 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, | |
| 219 | - 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, | |
| 220 | - 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, | |
| 221 | - 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, | |
| 222 | - 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, | |
| 223 | - 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, | |
| 224 | - 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, | |
| 225 | - 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, | |
| 226 | - 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, | |
| 227 | - 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, | |
| 228 | - 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, | |
| 229 | - 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, | |
| 230 | - 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, | |
| 231 | - 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, | |
| 232 | - 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, | |
| 233 | - 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, | |
| 234 | - 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, | |
| 235 | - 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, | |
| 236 | - 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, | |
| 237 | - 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, | |
| 238 | - 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, | |
| 239 | - 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, | |
| 240 | - 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, | |
| 241 | - 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, | |
| 242 | - 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, | |
| 243 | - 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, | |
| 244 | - 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, | |
| 245 | - 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, | |
| 246 | - 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, | |
| 247 | - 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, | |
| 248 | - 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, | |
| 249 | - 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, | |
| 250 | - 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, | |
| 251 | - 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, | |
| 252 | - 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, | |
| 253 | - 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, | |
| 254 | - 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, | |
| 255 | - 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, | |
| 256 | - 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, | |
| 257 | - 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, | |
| 258 | - 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, | |
| 259 | - 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, | |
| 260 | - 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, | |
| 261 | - 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, | |
| 262 | - 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, | |
| 263 | - 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, | |
| 264 | - 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, | |
| 265 | - 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, | |
| 266 | - 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, | |
| 267 | - 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, | |
| 268 | - 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, | |
| 269 | - 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, | |
| 270 | - 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, | |
| 271 | - 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, | |
| 272 | - 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, | |
| 273 | - 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, | |
| 274 | - 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, | |
| 275 | - 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, | |
| 276 | - 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, | |
| 277 | - 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, | |
| 278 | - 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, | |
| 279 | - 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, | |
| 280 | - 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, | |
| 281 | - 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, | |
| 282 | - 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, | |
| 283 | - 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, | |
| 284 | - 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, | |
| 285 | - 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, | |
| 286 | - 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, | |
| 287 | - 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, | |
| 288 | - 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, | |
| 289 | - 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, | |
| 290 | - 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, | |
| 291 | - 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, | |
| 292 | - 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, | |
| 293 | - 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, | |
| 294 | - 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, | |
| 295 | - 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, | |
| 296 | - 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, | |
| 297 | - 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, | |
| 298 | - 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, | |
| 299 | - 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, | |
| 300 | - 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, | |
| 301 | - 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, | |
| 302 | - 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, | |
| 303 | - 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, | |
| 304 | - 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, | |
| 305 | - 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, | |
| 306 | - 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, | |
| 307 | - 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, | |
| 308 | - 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, | |
| 309 | - 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, | |
| 310 | - 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, | |
| 311 | - 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, | |
| 312 | - 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, | |
| 313 | - 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, | |
| 314 | - 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, | |
| 315 | - 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, | |
| 316 | - 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, | |
| 317 | - 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, | |
| 318 | - 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, | |
| 319 | - 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, | |
| 320 | - 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, | |
| 321 | - 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, | |
| 322 | - 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, | |
| 323 | - 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, | |
| 324 | - 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, | |
| 325 | - 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, | |
| 326 | - 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, | |
| 327 | - 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, | |
| 328 | - 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, | |
| 329 | - 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, | |
| 330 | - 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, | |
| 331 | - 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, | |
| 332 | - 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, | |
| 333 | - 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, | |
| 334 | - 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 | |
| 335 | - }; | |
| 336 | - | |
| 337 | - // bcrypt IV: "OrpheanBeholderScryDoubt" | |
| 338 | - static private final int bf_crypt_ciphertext[] = { | |
| 339 | - 0x4f727068, 0x65616e42, 0x65686f6c, | |
| 340 | - 0x64657253, 0x63727944, 0x6f756274 | |
| 341 | - }; | |
| 342 | - | |
| 343 | - // Table for Base64 encoding | |
| 344 | - static private final char base64_code[] = { | |
| 345 | - '.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', | |
| 346 | - 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', | |
| 347 | - 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', | |
| 348 | - 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', | |
| 349 | - 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', | |
| 350 | - '6', '7', '8', '9' | |
| 351 | - }; | |
| 352 | - | |
| 353 | - // Table for Base64 decoding | |
| 354 | - static private final byte index_64[] = { | |
| 355 | - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 356 | - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 357 | - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 358 | - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 359 | - -1, -1, -1, -1, -1, -1, 0, 1, 54, 55, | |
| 360 | - 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, | |
| 361 | - -1, -1, -1, -1, -1, 2, 3, 4, 5, 6, | |
| 362 | - 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, | |
| 363 | - 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, | |
| 364 | - -1, -1, -1, -1, -1, -1, 28, 29, 30, | |
| 365 | - 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, | |
| 366 | - 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, | |
| 367 | - 51, 52, 53, -1, -1, -1, -1, -1 | |
| 368 | - }; | |
| 369 | - | |
| 370 | - // Expanded Blowfish key | |
| 371 | - private int P[]; | |
| 372 | - private int S[]; | |
| 373 | - | |
| 374 | - /** | |
| 375 | - * Encode a byte array using bcrypt's slightly-modified base64 | |
| 376 | - * encoding scheme. Note that this is *not* compatible with | |
| 377 | - * the standard MIME-base64 encoding. | |
| 378 | - * | |
| 379 | - * d the byte array to encode | |
| 380 | - * len the number of bytes to encode | |
| 381 | - * base64-encoded string | |
| 382 | - * IllegalArgumentException if the length is invalid | |
| 383 | - */ | |
| 384 | - private static String encode_base64(byte d[], int len) | |
| 385 | - throws IllegalArgumentException { | |
| 386 | - int off = 0; | |
| 387 | - StringBuffer rs = new StringBuffer(); | |
| 388 | - int c1, c2; | |
| 389 | - | |
| 390 | - if (len <= 0 || len > d.length) | |
| 391 | - throw new IllegalArgumentException ("Invalid len"); | |
| 392 | - | |
| 393 | - while (off < len) { | |
| 394 | - c1 = d[off++] & 0xff; | |
| 395 | - rs.append(base64_code[(c1 >> 2) & 0x3f]); | |
| 396 | - c1 = (c1 & 0x03) << 4; | |
| 397 | - if (off >= len) { | |
| 398 | - rs.append(base64_code[c1 & 0x3f]); | |
| 399 | - break; | |
| 400 | - } | |
| 401 | - c2 = d[off++] & 0xff; | |
| 402 | - c1 |= (c2 >> 4) & 0x0f; | |
| 403 | - rs.append(base64_code[c1 & 0x3f]); | |
| 404 | - c1 = (c2 & 0x0f) << 2; | |
| 405 | - if (off >= len) { | |
| 406 | - rs.append(base64_code[c1 & 0x3f]); | |
| 407 | - break; | |
| 408 | - } | |
| 409 | - c2 = d[off++] & 0xff; | |
| 410 | - c1 |= (c2 >> 6) & 0x03; | |
| 411 | - rs.append(base64_code[c1 & 0x3f]); | |
| 412 | - rs.append(base64_code[c2 & 0x3f]); | |
| 413 | - } | |
| 414 | - return rs.toString(); | |
| 415 | - } | |
| 416 | - | |
| 417 | - /** | |
| 418 | - * Look up the 3 bits base64-encoded by the specified character, | |
| 419 | - * range-checking againt conversion table | |
| 420 | - * x the base64-encoded value | |
| 421 | - * the decoded value of x | |
| 422 | - */ | |
| 423 | - private static byte char64(char x) { | |
| 424 | - if ((int)x < 0 || (int)x > index_64.length) | |
| 425 | - return -1; | |
| 426 | - return index_64[(int)x]; | |
| 427 | - } | |
| 428 | - | |
| 429 | - /** | |
| 430 | - * Decode a string encoded using bcrypt's base64 scheme to a | |
| 431 | - * byte array. Note that this is *not* compatible with | |
| 432 | - * the standard MIME-base64 encoding. | |
| 433 | - * s the string to decode | |
| 434 | - * maxolen the maximum number of bytes to decode | |
| 435 | - * an array containing the decoded bytes | |
| 436 | - * IllegalArgumentException if maxolen is invalid | |
| 437 | - */ | |
| 438 | - private static byte[] decode_base64(String s, int maxolen) | |
| 439 | - throws IllegalArgumentException { | |
| 440 | - StringBuffer rs = new StringBuffer(); | |
| 441 | - int off = 0, slen = s.length(), olen = 0; | |
| 442 | - byte ret[]; | |
| 443 | - byte c1, c2, c3, c4, o; | |
| 444 | - | |
| 445 | - if (maxolen <= 0) | |
| 446 | - throw new IllegalArgumentException ("Invalid maxolen"); | |
| 447 | - | |
| 448 | - while (off < slen - 1 && olen < maxolen) { | |
| 449 | - c1 = char64(s.charAt(off++)); | |
| 450 | - c2 = char64(s.charAt(off++)); | |
| 451 | - if (c1 == -1 || c2 == -1) | |
| 452 | - break; | |
| 453 | - o = (byte)(c1 << 2); | |
| 454 | - o |= (c2 & 0x30) >> 4; | |
| 455 | - rs.append((char)o); | |
| 456 | - if (++olen >= maxolen || off >= slen) | |
| 457 | - break; | |
| 458 | - c3 = char64(s.charAt(off++)); | |
| 459 | - if (c3 == -1) | |
| 460 | - break; | |
| 461 | - o = (byte)((c2 & 0x0f) << 4); | |
| 462 | - o |= (c3 & 0x3c) >> 2; | |
| 463 | - rs.append((char)o); | |
| 464 | - if (++olen >= maxolen || off >= slen) | |
| 465 | - break; | |
| 466 | - c4 = char64(s.charAt(off++)); | |
| 467 | - o = (byte)((c3 & 0x03) << 6); | |
| 468 | - o |= c4; | |
| 469 | - rs.append((char)o); | |
| 470 | - ++olen; | |
| 471 | - } | |
| 472 | - | |
| 473 | - ret = new byte[olen]; | |
| 474 | - for (off = 0; off < olen; off++) | |
| 475 | - ret[off] = (byte)rs.charAt(off); | |
| 476 | - return ret; | |
| 477 | - } | |
| 478 | - | |
| 479 | - /** | |
| 480 | - * Blowfish encipher a single 64-bit block encoded as | |
| 481 | - * two 32-bit halves | |
| 482 | - * lr an array containing the two 32-bit half blocks | |
| 483 | - * off the position in the array of the blocks | |
| 484 | - */ | |
| 485 | - private final void encipher(int lr[], int off) { | |
| 486 | - int i, n, l = lr[off], r = lr[off + 1]; | |
| 487 | - | |
| 488 | - l ^= P[0]; | |
| 489 | - for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) { | |
| 490 | - // Feistel substitution on left word | |
| 491 | - n = S[(l >> 24) & 0xff]; | |
| 492 | - n += S[0x100 | ((l >> 16) & 0xff)]; | |
| 493 | - n ^= S[0x200 | ((l >> 8) & 0xff)]; | |
| 494 | - n += S[0x300 | (l & 0xff)]; | |
| 495 | - r ^= n ^ P[++i]; | |
| 496 | - | |
| 497 | - // Feistel substitution on right word | |
| 498 | - n = S[(r >> 24) & 0xff]; | |
| 499 | - n += S[0x100 | ((r >> 16) & 0xff)]; | |
| 500 | - n ^= S[0x200 | ((r >> 8) & 0xff)]; | |
| 501 | - n += S[0x300 | (r & 0xff)]; | |
| 502 | - l ^= n ^ P[++i]; | |
| 503 | - } | |
| 504 | - lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]; | |
| 505 | - lr[off + 1] = l; | |
| 506 | - } | |
| 507 | - | |
| 508 | - /** | |
| 509 | - * Cycically extract a word of key material | |
| 510 | - * data the string to extract the data from | |
| 511 | - * offp a "pointer" (as a one-entry array) to the | |
| 512 | - * current offset into data | |
| 513 | - * the next word of material from data | |
| 514 | - */ | |
| 515 | - private static int streamtoword(byte data[], int offp[]) { | |
| 516 | - int i; | |
| 517 | - int word = 0; | |
| 518 | - int off = offp[0]; | |
| 519 | - | |
| 520 | - for (i = 0; i < 4; i++) { | |
| 521 | - word = (word << 8) | (data[off] & 0xff); | |
| 522 | - off = (off + 1) % data.length; | |
| 523 | - } | |
| 524 | - | |
| 525 | - offp[0] = off; | |
| 526 | - return word; | |
| 527 | - } | |
| 528 | - | |
| 529 | - /** | |
| 530 | - * Initialise the Blowfish key schedule | |
| 531 | - */ | |
| 532 | - private void init_key() { | |
| 533 | - P = (int[])P_orig.clone(); | |
| 534 | - S = (int[])S_orig.clone(); | |
| 535 | - } | |
| 536 | - | |
| 537 | - /** | |
| 538 | - * Key the Blowfish cipher | |
| 539 | - * key an array containing the key | |
| 540 | - */ | |
| 541 | - private void key(byte key[]) { | |
| 542 | - int i; | |
| 543 | - int koffp[] = { 0 }; | |
| 544 | - int lr[] = { 0, 0 }; | |
| 545 | - int plen = P.length, slen = S.length; | |
| 546 | - | |
| 547 | - for (i = 0; i < plen; i++) | |
| 548 | - P[i] = P[i] ^ streamtoword(key, koffp); | |
| 549 | - | |
| 550 | - for (i = 0; i < plen; i += 2) { | |
| 551 | - encipher(lr, 0); | |
| 552 | - P[i] = lr[0]; | |
| 553 | - P[i + 1] = lr[1]; | |
| 554 | - } | |
| 555 | - | |
| 556 | - for (i = 0; i < slen; i += 2) { | |
| 557 | - encipher(lr, 0); | |
| 558 | - S[i] = lr[0]; | |
| 559 | - S[i + 1] = lr[1]; | |
| 560 | - } | |
| 561 | - } | |
| 562 | - | |
| 563 | - /** | |
| 564 | - * Perform the "enhanced key schedule" step described by | |
| 565 | - * Provos and Mazieres in "A Future-Adaptable Password Scheme" | |
| 566 | - * http://www.openbsd.org/papers/bcrypt-paper.ps | |
| 567 | - * data salt information | |
| 568 | - * key password information | |
| 569 | - */ | |
| 570 | - private void ekskey(byte data[], byte key[]) { | |
| 571 | - int i; | |
| 572 | - int koffp[] = { 0 }, doffp[] = { 0 }; | |
| 573 | - int lr[] = { 0, 0 }; | |
| 574 | - int plen = P.length, slen = S.length; | |
| 575 | - | |
| 576 | - for (i = 0; i < plen; i++) | |
| 577 | - P[i] = P[i] ^ streamtoword(key, koffp); | |
| 578 | - | |
| 579 | - for (i = 0; i < plen; i += 2) { | |
| 580 | - lr[0] ^= streamtoword(data, doffp); | |
| 581 | - lr[1] ^= streamtoword(data, doffp); | |
| 582 | - encipher(lr, 0); | |
| 583 | - P[i] = lr[0]; | |
| 584 | - P[i + 1] = lr[1]; | |
| 585 | - } | |
| 586 | - | |
| 587 | - for (i = 0; i < slen; i += 2) { | |
| 588 | - lr[0] ^= streamtoword(data, doffp); | |
| 589 | - lr[1] ^= streamtoword(data, doffp); | |
| 590 | - encipher(lr, 0); | |
| 591 | - S[i] = lr[0]; | |
| 592 | - S[i + 1] = lr[1]; | |
| 593 | - } | |
| 594 | - } | |
| 595 | - | |
| 596 | - /** | |
| 597 | - * Perform the central password hashing step in the | |
| 598 | - * bcrypt scheme | |
| 599 | - * password the password to hash | |
| 600 | - * salt the binary salt to hash with the password | |
| 601 | - * log_rounds the binary logarithm of the number | |
| 602 | - * of rounds of hashing to apply | |
| 603 | - * an array containing the binary hashed password | |
| 604 | - */ | |
| 605 | - private byte[] crypt_raw(byte password[], byte salt[], int log_rounds) { | |
| 606 | - int rounds, i, j; | |
| 607 | - int cdata[] = (int[])bf_crypt_ciphertext.clone(); | |
| 608 | - int clen = cdata.length; | |
| 609 | - byte ret[]; | |
| 610 | - | |
| 611 | - if (log_rounds < 4 || log_rounds > 31) | |
| 612 | - throw new IllegalArgumentException ("Bad number of rounds"); | |
| 613 | - rounds = 1 << log_rounds; | |
| 614 | - if (salt.length != BCRYPT_SALT_LEN) | |
| 615 | - throw new IllegalArgumentException ("Bad salt length"); | |
| 616 | - | |
| 617 | - init_key(); | |
| 618 | - ekskey(salt, password); | |
| 619 | - for (i = 0; i < rounds; i++) { | |
| 620 | - key(password); | |
| 621 | - key(salt); | |
| 622 | - } | |
| 623 | - | |
| 624 | - for (i = 0; i < 64; i++) { | |
| 625 | - for (j = 0; j < (clen >> 1); j++) | |
| 626 | - encipher(cdata, j << 1); | |
| 627 | - } | |
| 628 | - | |
| 629 | - ret = new byte[clen * 4]; | |
| 630 | - for (i = 0, j = 0; i < clen; i++) { | |
| 631 | - ret[j++] = (byte)((cdata[i] >> 24) & 0xff); | |
| 632 | - ret[j++] = (byte)((cdata[i] >> 16) & 0xff); | |
| 633 | - ret[j++] = (byte)((cdata[i] >> 8) & 0xff); | |
| 634 | - ret[j++] = (byte)(cdata[i] & 0xff); | |
| 635 | - } | |
| 636 | - return ret; | |
| 637 | - } | |
| 638 | - | |
| 639 | - /** | |
| 640 | - * Hash a password using the OpenBSD bcrypt scheme | |
| 641 | - * password the password to hash | |
| 642 | - * salt the salt to hash with (perhaps generated | |
| 643 | - * using BCrypt.gensalt) | |
| 644 | - * the hashed password | |
| 645 | - */ | |
| 646 | - public static String hashpw(String password, String salt) { | |
| 647 | - BCrypt B; | |
| 648 | - String real_salt; | |
| 649 | - byte passwordb[], saltb[], hashed[]; | |
| 650 | - char minor = (char)0; | |
| 651 | - int rounds, off = 0; | |
| 652 | - StringBuffer rs = new StringBuffer(); | |
| 653 | - | |
| 654 | - if (salt.charAt(0) != '$' || salt.charAt(1) != '2') | |
| 655 | - throw new IllegalArgumentException ("Invalid salt version"); | |
| 656 | - if (salt.charAt(1) != '$') { | |
| 657 | - minor = salt.charAt(2); | |
| 658 | - if (minor != 'a' || salt.charAt(3) != '$') | |
| 659 | - throw new IllegalArgumentException ("Invalid salt revision"); | |
| 660 | - off = 4; | |
| 661 | - } else | |
| 662 | - off = 3; | |
| 663 | - | |
| 664 | - // Extract number of rounds | |
| 665 | - if (salt.charAt(off + 2) > '$') | |
| 666 | - throw new IllegalArgumentException ("Missing salt rounds"); | |
| 667 | - rounds = Integer.parseInt(salt.substring(off, off + 2)); | |
| 668 | - | |
| 669 | - real_salt = salt.substring(off + 3, off + 25); | |
| 670 | - try { | |
| 671 | - passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("US-ASCII"); | |
| 672 | - } catch (UnsupportedEncodingException uee) { | |
| 673 | - // The JDK guarantees that US-ASCII is supported. | |
| 674 | - throw new AssertionError("US-ASCII is not supported"); | |
| 675 | - } | |
| 676 | - | |
| 677 | - saltb = decode_base64(real_salt, BCRYPT_SALT_LEN); | |
| 678 | - | |
| 679 | - B = new BCrypt(); | |
| 680 | - hashed = B.crypt_raw(passwordb, saltb, rounds); | |
| 681 | - | |
| 682 | - rs.append("$2"); | |
| 683 | - if (minor >= 'a') | |
| 684 | - rs.append(minor); | |
| 685 | - rs.append("$"); | |
| 686 | - if (rounds < 10) | |
| 687 | - rs.append("0"); | |
| 688 | - rs.append(Integer.toString(rounds)); | |
| 689 | - rs.append("$"); | |
| 690 | - rs.append(encode_base64(saltb, saltb.length)); | |
| 691 | - rs.append(encode_base64(hashed, | |
| 692 | - bf_crypt_ciphertext.length * 4 - 1)); | |
| 693 | - return rs.toString(); | |
| 694 | - } | |
| 695 | - | |
| 696 | - /** | |
| 697 | - * Generate a salt for use with the BCrypt.hashpw() method | |
| 698 | - * log_rounds the log2 of the number of rounds of | |
| 699 | - * hashing to apply - the work factor therefore increases as | |
| 700 | - * 2**log_rounds. | |
| 701 | - * random an instance of SecureRandom to use | |
| 702 | - * an encoded salt value | |
| 703 | - */ | |
| 704 | - public static String gensalt(int log_rounds, SecureRandom random) { | |
| 705 | - StringBuffer rs = new StringBuffer(); | |
| 706 | - byte rnd[] = new byte[BCRYPT_SALT_LEN]; | |
| 707 | - | |
| 708 | - random.nextBytes(rnd); | |
| 709 | - | |
| 710 | - rs.append("$2a$"); | |
| 711 | - if (log_rounds < 10) | |
| 712 | - rs.append("0"); | |
| 713 | - rs.append(Integer.toString(log_rounds)); | |
| 714 | - rs.append("$"); | |
| 715 | - rs.append(encode_base64(rnd, rnd.length)); | |
| 716 | - return rs.toString(); | |
| 717 | - } | |
| 718 | - | |
| 719 | - /** | |
| 720 | - * Generate a salt for use with the BCrypt.hashpw() method | |
| 721 | - * log_rounds the log2 of the number of rounds of | |
| 722 | - * hashing to apply - the work factor therefore increases as | |
| 723 | - * 2**log_rounds. | |
| 724 | - * an encoded salt value | |
| 725 | - */ | |
| 726 | - public static String gensalt(int log_rounds) { | |
| 727 | - return gensalt(log_rounds, new SecureRandom()); | |
| 728 | - } | |
| 729 | - | |
| 730 | - /** | |
| 731 | - * Generate a salt for use with the BCrypt.hashpw() method, | |
| 732 | - * selecting a reasonable default for the number of hashing | |
| 733 | - * rounds to apply | |
| 734 | - * an encoded salt value | |
| 735 | - */ | |
| 736 | - public static String gensalt() { | |
| 737 | - return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS); | |
| 738 | - } | |
| 739 | - | |
| 740 | - /** | |
| 741 | - * Check that a plaintext password matches a previously hashed | |
| 742 | - * one | |
| 743 | - * plaintext the plaintext password to verify | |
| 744 | - * hashed the previously-hashed password | |
| 745 | - * true if the passwords match, false otherwise | |
| 746 | - */ | |
| 747 | - public static boolean checkpw(String plaintext, String hashed) { | |
| 748 | - return (hashed.compareTo(hashpw(plaintext, hashed)) == 0); | |
| 749 | - } | |
| 750 | -} | |
| ext/jruby/bcrypt_jruby/BCrypt.java | ||
|---|---|---|
| @@ -1,0 +1,752 @@ | ||
| 1 | +// Copyright (c) 2006 Damien Miller <djm@mindrot.org> | |
| 2 | +// | |
| 3 | +// Permission to use, copy, modify, and distribute this software for any | |
| 4 | +// purpose with or without fee is hereby granted, provided that the above | |
| 5 | +// copyright notice and this permission notice appear in all copies. | |
| 6 | +// | |
| 7 | +// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 8 | +// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 9 | +// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 10 | +// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 11 | +// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 12 | +// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 13 | +// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 14 | + | |
| 15 | +package bcrypt_jruby; | |
| 16 | + | |
| 17 | +import java.io.UnsupportedEncodingException; | |
| 18 | + | |
| 19 | +import java.security.SecureRandom; | |
| 20 | + | |
| 21 | +/** | |
| 22 | + * BCrypt implements OpenBSD-style Blowfish password hashing using | |
| 23 | + * the scheme described in "A Future-Adaptable Password Scheme" by | |
| 24 | + * Niels Provos and David Mazieres. | |
| 25 | + * <p> | |
| 26 | + * This password hashing system tries to thwart off-line password | |
| 27 | + * cracking using a computationally-intensive hashing algorithm, | |
| 28 | + * based on Bruce Schneier's Blowfish cipher. The work factor of | |
| 29 | + * the algorithm is parameterised, so it can be increased as | |
| 30 | + * computers get faster. | |
| 31 | + * <p> | |
| 32 | + * Usage is really simple. To hash a password for the first time, | |
| 33 | + * call the hashpw method with a random salt, like this: | |
| 34 | + * <p> | |
| 35 | + * <code> | |
| 36 | + * String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt()); <br /> | |
| 37 | + * </code> | |
| 38 | + * <p> | |
| 39 | + * To check whether a plaintext password matches one that has been | |
| 40 | + * hashed previously, use the checkpw method: | |
| 41 | + * <p> | |
| 42 | + * <code> | |
| 43 | + * if (BCrypt.checkpw(candidate_password, stored_hash))<br /> | |
| 44 | + * System.out.println("It matches");<br /> | |
| 45 | + * else<br /> | |
| 46 | + * System.out.println("It does not match");<br /> | |
| 47 | + * </code> | |
| 48 | + * <p> | |
| 49 | + * The gensalt() method takes an optional parameter (log_rounds) | |
| 50 | + * that determines the computational complexity of the hashing: | |
| 51 | + * <p> | |
| 52 | + * <code> | |
| 53 | + * String strong_salt = BCrypt.gensalt(10)<br /> | |
| 54 | + * String stronger_salt = BCrypt.gensalt(12)<br /> | |
| 55 | + * </code> | |
| 56 | + * <p> | |
| 57 | + * The amount of work increases exponentially (2**log_rounds), so | |
| 58 | + * each increment is twice as much work. The default log_rounds is | |
| 59 | + * 10, and the valid range is 4 to 31. | |
| 60 | + * | |
| 61 | + * Damien Miller | |
| 62 | + * 0.2 | |
| 63 | + */ | |
| 64 | +public class BCrypt { | |
| 65 | + // BCrypt parameters | |
| 66 | + private static int GENSALT_DEFAULT_LOG2_ROUNDS = 10; | |
| 67 | + private static final int BCRYPT_SALT_LEN = 16; | |
| 68 | + | |
| 69 | + // Blowfish parameters | |
| 70 | + private static final int BLOWFISH_NUM_ROUNDS = 16; | |
| 71 | + | |
| 72 | + // Initial contents of key schedule | |
| 73 | + private static final int P_orig[] = { | |
| 74 | + 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, | |
| 75 | + 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, | |
| 76 | + 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, | |
| 77 | + 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, | |
| 78 | + 0x9216d5d9, 0x8979fb1b | |
| 79 | + }; | |
| 80 | + private static final int S_orig[] = { | |
| 81 | + 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, | |
| 82 | + 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, | |
| 83 | + 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, | |
| 84 | + 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, | |
| 85 | + 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, | |
| 86 | + 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, | |
| 87 | + 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, | |
| 88 | + 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, | |
| 89 | + 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, | |
| 90 | + 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, | |
| 91 | + 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, | |
| 92 | + 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, | |
| 93 | + 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, | |
| 94 | + 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, | |
| 95 | + 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, | |
| 96 | + 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, | |
| 97 | + 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, | |
| 98 | + 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, | |
| 99 | + 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, | |
| 100 | + 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, | |
| 101 | + 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, | |
| 102 | + 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, | |
| 103 | + 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, | |
| 104 | + 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, | |
| 105 | + 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, | |
| 106 | + 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, | |
| 107 | + 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, | |
| 108 | + 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, | |
| 109 | + 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, | |
| 110 | + 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, | |
| 111 | + 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, | |
| 112 | + 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, | |
| 113 | + 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, | |
| 114 | + 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, | |
| 115 | + 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, | |
| 116 | + 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, | |
| 117 | + 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, | |
| 118 | + 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, | |
| 119 | + 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, | |
| 120 | + 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, | |
| 121 | + 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, | |
| 122 | + 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, | |
| 123 | + 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, | |
| 124 | + 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, | |
| 125 | + 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, | |
| 126 | + 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, | |
| 127 | + 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, | |
| 128 | + 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, | |
| 129 | + 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, | |
| 130 | + 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, | |
| 131 | + 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, | |
| 132 | + 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, | |
| 133 | + 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, | |
| 134 | + 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, | |
| 135 | + 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, | |
| 136 | + 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, | |
| 137 | + 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, | |
| 138 | + 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, | |
| 139 | + 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, | |
| 140 | + 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, | |
| 141 | + 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, | |
| 142 | + 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, | |
| 143 | + 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, | |
| 144 | + 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, | |
| 145 | + 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, | |
| 146 | + 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, | |
| 147 | + 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, | |
| 148 | + 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, | |
| 149 | + 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, | |
| 150 | + 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, | |
| 151 | + 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, | |
| 152 | + 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, | |
| 153 | + 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, | |
| 154 | + 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, | |
| 155 | + 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, | |
| 156 | + 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, | |
| 157 | + 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, | |
| 158 | + 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, | |
| 159 | + 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, | |
| 160 | + 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, | |
| 161 | + 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, | |
| 162 | + 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, | |
| 163 | + 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, | |
| 164 | + 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, | |
| 165 | + 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, | |
| 166 | + 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, | |
| 167 | + 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, | |
| 168 | + 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, | |
| 169 | + 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, | |
| 170 | + 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, | |
| 171 | + 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, | |
| 172 | + 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, | |
| 173 | + 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, | |
| 174 | + 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, | |
| 175 | + 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, | |
| 176 | + 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, | |
| 177 | + 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, | |
| 178 | + 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, | |
| 179 | + 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, | |
| 180 | + 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, | |
| 181 | + 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, | |
| 182 | + 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, | |
| 183 | + 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, | |
| 184 | + 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, | |
| 185 | + 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, | |
| 186 | + 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, | |
| 187 | + 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, | |
| 188 | + 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, | |
| 189 | + 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, | |
| 190 | + 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, | |
| 191 | + 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, | |
| 192 | + 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, | |
| 193 | + 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, | |
| 194 | + 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, | |
| 195 | + 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, | |
| 196 | + 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, | |
| 197 | + 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, | |
| 198 | + 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, | |
| 199 | + 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, | |
| 200 | + 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, | |
| 201 | + 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, | |
| 202 | + 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, | |
| 203 | + 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, | |
| 204 | + 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, | |
| 205 | + 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, | |
| 206 | + 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, | |
| 207 | + 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, | |
| 208 | + 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, | |
| 209 | + 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, | |
| 210 | + 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, | |
| 211 | + 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, | |
| 212 | + 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, | |
| 213 | + 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, | |
| 214 | + 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, | |
| 215 | + 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, | |
| 216 | + 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, | |
| 217 | + 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, | |
| 218 | + 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, | |
| 219 | + 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, | |
| 220 | + 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, | |
| 221 | + 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, | |
| 222 | + 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, | |
| 223 | + 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, | |
| 224 | + 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, | |
| 225 | + 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, | |
| 226 | + 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, | |
| 227 | + 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, | |
| 228 | + 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, | |
| 229 | + 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, | |
| 230 | + 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, | |
| 231 | + 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, | |
| 232 | + 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, | |
| 233 | + 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, | |
| 234 | + 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, | |
| 235 | + 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, | |
| 236 | + 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, | |
| 237 | + 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, | |
| 238 | + 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, | |
| 239 | + 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, | |
| 240 | + 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, | |
| 241 | + 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, | |
| 242 | + 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, | |
| 243 | + 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, | |
| 244 | + 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, | |
| 245 | + 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, | |
| 246 | + 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, | |
| 247 | + 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, | |
| 248 | + 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, | |
| 249 | + 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, | |
| 250 | + 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, | |
| 251 | + 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, | |
| 252 | + 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, | |
| 253 | + 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, | |
| 254 | + 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, | |
| 255 | + 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, | |
| 256 | + 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, | |
| 257 | + 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, | |
| 258 | + 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, | |
| 259 | + 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, | |
| 260 | + 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, | |
| 261 | + 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, | |
| 262 | + 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, | |
| 263 | + 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, | |
| 264 | + 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, | |
| 265 | + 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, | |
| 266 | + 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, | |
| 267 | + 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, | |
| 268 | + 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, | |
| 269 | + 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, | |
| 270 | + 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, | |
| 271 | + 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, | |
| 272 | + 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0, | |
| 273 | + 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, | |
| 274 | + 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, | |
| 275 | + 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, | |
| 276 | + 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, | |
| 277 | + 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, | |
| 278 | + 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, | |
| 279 | + 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, | |
| 280 | + 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, | |
| 281 | + 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, | |
| 282 | + 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, | |
| 283 | + 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, | |
| 284 | + 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, | |
| 285 | + 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, | |
| 286 | + 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, | |
| 287 | + 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, | |
| 288 | + 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, | |
| 289 | + 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, | |
| 290 | + 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, | |
| 291 | + 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, | |
| 292 | + 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, | |
| 293 | + 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, | |
| 294 | + 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, | |
| 295 | + 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, | |
| 296 | + 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, | |
| 297 | + 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, | |
| 298 | + 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, | |
| 299 | + 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, | |
| 300 | + 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, | |
| 301 | + 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, | |
| 302 | + 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, | |
| 303 | + 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, | |
| 304 | + 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, | |
| 305 | + 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, | |
| 306 | + 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, | |
| 307 | + 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, | |
| 308 | + 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, | |
| 309 | + 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, | |
| 310 | + 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, | |
| 311 | + 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, | |
| 312 | + 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, | |
| 313 | + 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, | |
| 314 | + 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, | |
| 315 | + 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, | |
| 316 | + 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, | |
| 317 | + 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, | |
| 318 | + 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, | |
| 319 | + 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, | |
| 320 | + 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, | |
| 321 | + 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, | |
| 322 | + 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, | |
| 323 | + 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, | |
| 324 | + 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, | |
| 325 | + 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, | |
| 326 | + 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, | |
| 327 | + 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, | |
| 328 | + 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, | |
| 329 | + 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, | |
| 330 | + 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, | |
| 331 | + 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, | |
| 332 | + 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, | |
| 333 | + 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, | |
| 334 | + 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, | |
| 335 | + 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, | |
| 336 | + 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 | |
| 337 | + }; | |
| 338 | + | |
| 339 | + // bcrypt IV: "OrpheanBeholderScryDoubt" | |
| 340 | + static private final int bf_crypt_ciphertext[] = { | |
| 341 | + 0x4f727068, 0x65616e42, 0x65686f6c, | |
| 342 | + 0x64657253, 0x63727944, 0x6f756274 | |
| 343 | + }; | |
| 344 | + | |
| 345 | + // Table for Base64 encoding | |
| 346 | + static private final char base64_code[] = { | |
| 347 | + '.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', | |
| 348 | + 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', | |
| 349 | + 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', | |
| 350 | + 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', | |
| 351 | + 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', | |
| 352 | + '6', '7', '8', '9' | |
| 353 | + }; | |
| 354 | + | |
| 355 | + // Table for Base64 decoding | |
| 356 | + static private final byte index_64[] = { | |
| 357 | + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 358 | + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 359 | + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 360 | + -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, | |
| 361 | + -1, -1, -1, -1, -1, -1, 0, 1, 54, 55, | |
| 362 | + 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, | |
| 363 | + -1, -1, -1, -1, -1, 2, 3, 4, 5, 6, | |
| 364 | + 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, | |
| 365 | + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, | |
| 366 | + -1, -1, -1, -1, -1, -1, 28, 29, 30, | |
| 367 | + 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, | |
| 368 | + 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, | |
| 369 | + 51, 52, 53, -1, -1, -1, -1, -1 | |
| 370 | + }; | |
| 371 | + | |
| 372 | + // Expanded Blowfish key | |
| 373 | + private int P[]; | |
| 374 | + private int S[]; | |
| 375 | + | |
| 376 | + /** | |
| 377 | + * Encode a byte array using bcrypt's slightly-modified base64 | |
| 378 | + * encoding scheme. Note that this is *not* compatible with | |
| 379 | + * the standard MIME-base64 encoding. | |
| 380 | + * | |
| 381 | + * d the byte array to encode | |
| 382 | + * len the number of bytes to encode | |
| 383 | + * base64-encoded string | |
| 384 | + * IllegalArgumentException if the length is invalid | |
| 385 | + */ | |
| 386 | + private static String encode_base64(byte d[], int len) | |
| 387 | + throws IllegalArgumentException { | |
| 388 | + int off = 0; | |
| 389 | + StringBuffer rs = new StringBuffer(); | |
| 390 | + int c1, c2; | |
| 391 | + | |
| 392 | + if (len <= 0 || len > d.length) | |
| 393 | + throw new IllegalArgumentException ("Invalid len"); | |
| 394 | + | |
| 395 | + while (off < len) { | |
| 396 | + c1 = d[off++] & 0xff; | |
| 397 | + rs.append(base64_code[(c1 >> 2) & 0x3f]); | |
| 398 | + c1 = (c1 & 0x03) << 4; | |
| 399 | + if (off >= len) { | |
| 400 | + rs.append(base64_code[c1 & 0x3f]); | |
| 401 | + break; | |
| 402 | + } | |
| 403 | + c2 = d[off++] & 0xff; | |
| 404 | + c1 |= (c2 >> 4) & 0x0f; | |
| 405 | + rs.append(base64_code[c1 & 0x3f]); | |
| 406 | + c1 = (c2 & 0x0f) << 2; | |
| 407 | + if (off >= len) { | |
| 408 | + rs.append(base64_code[c1 & 0x3f]); | |
| 409 | + break; | |
| 410 | + } | |
| 411 | + c2 = d[off++] & 0xff; | |
| 412 | + c1 |= (c2 >> 6) & 0x03; | |
| 413 | + rs.append(base64_code[c1 & 0x3f]); | |
| 414 | + rs.append(base64_code[c2 & 0x3f]); | |
| 415 | + } | |
| 416 | + return rs.toString(); | |
| 417 | + } | |
| 418 | + | |
| 419 | + /** | |
| 420 | + * Look up the 3 bits base64-encoded by the specified character, | |
| 421 | + * range-checking againt conversion table | |
| 422 | + * x the base64-encoded value | |
| 423 | + * the decoded value of x | |
| 424 | + */ | |
| 425 | + private static byte char64(char x) { | |
| 426 | + if ((int)x < 0 || (int)x > index_64.length) | |
| 427 | + return -1; | |
| 428 | + return index_64[(int)x]; | |
| 429 | + } | |
| 430 | + | |
| 431 | + /** | |
| 432 | + * Decode a string encoded using bcrypt's base64 scheme to a | |
| 433 | + * byte array. Note that this is *not* compatible with | |
| 434 | + * the standard MIME-base64 encoding. | |
| 435 | + * s the string to decode | |
| 436 | + * maxolen the maximum number of bytes to decode | |
| 437 | + * an array containing the decoded bytes | |
| 438 | + * IllegalArgumentException if maxolen is invalid | |
| 439 | + */ | |
| 440 | + private static byte[] decode_base64(String s, int maxolen) | |
| 441 | + throws IllegalArgumentException { | |
| 442 | + StringBuffer rs = new StringBuffer(); | |
| 443 | + int off = 0, slen = s.length(), olen = 0; | |
| 444 | + byte ret[]; | |
| 445 | + byte c1, c2, c3, c4, o; | |
| 446 | + | |
| 447 | + if (maxolen <= 0) | |
| 448 | + throw new IllegalArgumentException ("Invalid maxolen"); | |
| 449 | + | |
| 450 | + while (off < slen - 1 && olen < maxolen) { | |
| 451 | + c1 = char64(s.charAt(off++)); | |
| 452 | + c2 = char64(s.charAt(off++)); | |
| 453 | + if (c1 == -1 || c2 == -1) | |
| 454 | + break; | |
| 455 | + o = (byte)(c1 << 2); | |
| 456 | + o |= (c2 & 0x30) >> 4; | |
| 457 | + rs.append((char)o); | |
| 458 | + if (++olen >= maxolen || off >= slen) | |
| 459 | + break; | |
| 460 | + c3 = char64(s.charAt(off++)); | |
| 461 | + if (c3 == -1) | |
| 462 | + break; | |
| 463 | + o = (byte)((c2 & 0x0f) << 4); | |
| 464 | + o |= (c3 & 0x3c) >> 2; | |
| 465 | + rs.append((char)o); | |
| 466 | + if (++olen >= maxolen || off >= slen) | |
| 467 | + break; | |
| 468 | + c4 = char64(s.charAt(off++)); | |
| 469 | + o = (byte)((c3 & 0x03) << 6); | |
| 470 | + o |= c4; | |
| 471 | + rs.append((char)o); | |
| 472 | + ++olen; | |
| 473 | + } | |
| 474 | + | |
| 475 | + ret = new byte[olen]; | |
| 476 | + for (off = 0; off < olen; off++) | |
| 477 | + ret[off] = (byte)rs.charAt(off); | |
| 478 | + return ret; | |
| 479 | + } | |
| 480 | + | |
| 481 | + /** | |
| 482 | + * Blowfish encipher a single 64-bit block encoded as | |
| 483 | + * two 32-bit halves | |
| 484 | + * lr an array containing the two 32-bit half blocks | |
| 485 | + * off the position in the array of the blocks | |
| 486 | + */ | |
| 487 | + private final void encipher(int lr[], int off) { | |
| 488 | + int i, n, l = lr[off], r = lr[off + 1]; | |
| 489 | + | |
| 490 | + l ^= P[0]; | |
| 491 | + for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) { | |
| 492 | + // Feistel substitution on left word | |
| 493 | + n = S[(l >> 24) & 0xff]; | |
| 494 | + n += S[0x100 | ((l >> 16) & 0xff)]; | |
| 495 | + n ^= S[0x200 | ((l >> 8) & 0xff)]; | |
| 496 | + n += S[0x300 | (l & 0xff)]; | |
| 497 | + r ^= n ^ P[++i]; | |
| 498 | + | |
| 499 | + // Feistel substitution on right word | |
| 500 | + n = S[(r >> 24) & 0xff]; | |
| 501 | + n += S[0x100 | ((r >> 16) & 0xff)]; | |
| 502 | + n ^= S[0x200 | ((r >> 8) & 0xff)]; | |
| 503 | + n += S[0x300 | (r & 0xff)]; | |
| 504 | + l ^= n ^ P[++i]; | |
| 505 | + } | |
| 506 | + lr[off] = r ^ P[BLOWFISH_NUM_ROUNDS + 1]; | |
| 507 | + lr[off + 1] = l; | |
| 508 | + } | |
| 509 | + | |
| 510 | + /** | |
| 511 | + * Cycically extract a word of key material | |
| 512 | + * data the string to extract the data from | |
| 513 | + * offp a "pointer" (as a one-entry array) to the | |
| 514 | + * current offset into data | |
| 515 | + * the next word of material from data | |
| 516 | + */ | |
| 517 | + private static int streamtoword(byte data[], int offp[]) { | |
| 518 | + int i; | |
| 519 | + int word = 0; | |
| 520 | + int off = offp[0]; | |
| 521 | + | |
| 522 | + for (i = 0; i < 4; i++) { | |
| 523 | + word = (word << 8) | (data[off] & 0xff); | |
| 524 | + off = (off + 1) % data.length; | |
| 525 | + } | |
| 526 | + | |
| 527 | + offp[0] = off; | |
| 528 | + return word; | |
| 529 | + } | |
| 530 | + | |
| 531 | + /** | |
| 532 | + * Initialise the Blowfish key schedule | |
| 533 | + */ | |
| 534 | + private void init_key() { | |
| 535 | + P = (int[])P_orig.clone(); | |
| 536 | + S = (int[])S_orig.clone(); | |
| 537 | + } | |
| 538 | + | |
| 539 | + /** | |
| 540 | + * Key the Blowfish cipher | |
| 541 | + * key an array containing the key | |
| 542 | + */ | |
| 543 | + private void key(byte key[]) { | |
| 544 | + int i; | |
| 545 | + int koffp[] = { 0 }; | |
| 546 | + int lr[] = { 0, 0 }; | |
| 547 | + int plen = P.length, slen = S.length; | |
| 548 | + | |
| 549 | + for (i = 0; i < plen; i++) | |
| 550 | + P[i] = P[i] ^ streamtoword(key, koffp); | |
| 551 | + | |
| 552 | + for (i = 0; i < plen; i += 2) { | |
| 553 | + encipher(lr, 0); | |
| 554 | + P[i] = lr[0]; | |
| 555 | + P[i + 1] = lr[1]; | |
| 556 | + } | |
| 557 | + | |
| 558 | + for (i = 0; i < slen; i += 2) { | |
| 559 | + encipher(lr, 0); | |
| 560 | + S[i] = lr[0]; | |
| 561 | + S[i + 1] = lr[1]; | |
| 562 | + } | |
| 563 | + } | |
| 564 | + | |
| 565 | + /** | |
| 566 | + * Perform the "enhanced key schedule" step described by | |
| 567 | + * Provos and Mazieres in "A Future-Adaptable Password Scheme" | |
| 568 | + * http://www.openbsd.org/papers/bcrypt-paper.ps | |
| 569 | + * data salt information | |
| 570 | + * key password information | |
| 571 | + */ | |
| 572 | + private void ekskey(byte data[], byte key[]) { | |
| 573 | + int i; | |
| 574 | + int koffp[] = { 0 }, doffp[] = { 0 }; | |
| 575 | + int lr[] = { 0, 0 }; | |
| 576 | + int plen = P.length, slen = S.length; | |
| 577 | + | |
| 578 | + for (i = 0; i < plen; i++) | |
| 579 | + P[i] = P[i] ^ streamtoword(key, koffp); | |
| 580 | + | |
| 581 | + for (i = 0; i < plen; i += 2) { | |
| 582 | + lr[0] ^= streamtoword(data, doffp); | |
| 583 | + lr[1] ^= streamtoword(data, doffp); | |
| 584 | + encipher(lr, 0); | |
| 585 | + P[i] = lr[0]; | |
| 586 | + P[i + 1] = lr[1]; | |
| 587 | + } | |
| 588 | + | |
| 589 | + for (i = 0; i < slen; i += 2) { | |
| 590 | + lr[0] ^= streamtoword(data, doffp); | |
| 591 | + lr[1] ^= streamtoword(data, doffp); | |
| 592 | + encipher(lr, 0); | |
| 593 | + S[i] = lr[0]; | |
| 594 | + S[i + 1] = lr[1]; | |
| 595 | + } | |
| 596 | + } | |
| 597 | + | |
| 598 | + /** | |
| 599 | + * Perform the central password hashing step in the | |
| 600 | + * bcrypt scheme | |
| 601 | + * password the password to hash | |
| 602 | + * salt the binary salt to hash with the password | |
| 603 | + * log_rounds the binary logarithm of the number | |
| 604 | + * of rounds of hashing to apply | |
| 605 | + * an array containing the binary hashed password | |
| 606 | + */ | |
| 607 | + private byte[] crypt_raw(byte password[], byte salt[], int log_rounds) { | |
| 608 | + int rounds, i, j; | |
| 609 | + int cdata[] = (int[])bf_crypt_ciphertext.clone(); | |
| 610 | + int clen = cdata.length; | |
| 611 | + byte ret[]; | |
| 612 | + | |
| 613 | + if (log_rounds < 4 || log_rounds > 31) | |
| 614 | + throw new IllegalArgumentException ("Bad number of rounds"); | |
| 615 | + rounds = 1 << log_rounds; | |
| 616 | + if (salt.length != BCRYPT_SALT_LEN) | |
| 617 | + throw new IllegalArgumentException ("Bad salt length"); | |
| 618 | + | |
| 619 | + init_key(); | |
| 620 | + ekskey(salt, password); | |
| 621 | + for (i = 0; i < rounds; i++) { | |
| 622 | + key(password); | |
| 623 | + key(salt); | |
| 624 | + } | |
| 625 | + | |
| 626 | + for (i = 0; i < 64; i++) { | |
| 627 | + for (j = 0; j < (clen >> 1); j++) | |
| 628 | + encipher(cdata, j << 1); | |
| 629 | + } | |
| 630 | + | |
| 631 | + ret = new byte[clen * 4]; | |
| 632 | + for (i = 0, j = 0; i < clen; i++) { | |
| 633 | + ret[j++] = (byte)((cdata[i] >> 24) & 0xff); | |
| 634 | + ret[j++] = (byte)((cdata[i] >> 16) & 0xff); | |
| 635 | + ret[j++] = (byte)((cdata[i] >> 8) & 0xff); | |
| 636 | + ret[j++] = (byte)(cdata[i] & 0xff); | |
| 637 | + } | |
| 638 | + return ret; | |
| 639 | + } | |
| 640 | + | |
| 641 | + /** | |
| 642 | + * Hash a password using the OpenBSD bcrypt scheme | |
| 643 | + * password the password to hash | |
| 644 | + * salt the salt to hash with (perhaps generated | |
| 645 | + * using BCrypt.gensalt) | |
| 646 | + * the hashed password | |
| 647 | + */ | |
| 648 | + public static String hashpw(String password, String salt) { | |
| 649 | + BCrypt B; | |
| 650 | + String real_salt; | |
| 651 | + byte passwordb[], saltb[], hashed[]; | |
| 652 | + char minor = (char)0; | |
| 653 | + int rounds, off = 0; | |
| 654 | + StringBuffer rs = new StringBuffer(); | |
| 655 | + | |
| 656 | + if (salt.charAt(0) != '$' || salt.charAt(1) != '2') | |
| 657 | + throw new IllegalArgumentException ("Invalid salt version"); | |
| 658 | + if (salt.charAt(1) != '$') { | |
| 659 | + minor = salt.charAt(2); | |
| 660 | + if (minor != 'a' || salt.charAt(3) != '$') | |
| 661 | + throw new IllegalArgumentException ("Invalid salt revision"); | |
| 662 | + off = 4; | |
| 663 | + } else | |
| 664 | + off = 3; | |
| 665 | + | |
| 666 | + // Extract number of rounds | |
| 667 | + if (salt.charAt(off + 2) > '$') | |
| 668 | + throw new IllegalArgumentException ("Missing salt rounds"); | |
| 669 | + rounds = Integer.parseInt(salt.substring(off, off + 2)); | |
| 670 | + | |
| 671 | + real_salt = salt.substring(off + 3, off + 25); | |
| 672 | + try { | |
| 673 | + passwordb = (password + (minor >= 'a' ? "\000" : "")).getBytes("US-ASCII"); | |
| 674 | + } catch (UnsupportedEncodingException uee) { | |
| 675 | + // The JDK guarantees that US-ASCII is supported. | |
| 676 | + throw new AssertionError("US-ASCII is not supported"); | |
| 677 | + } | |
| 678 | + | |
| 679 | + saltb = decode_base64(real_salt, BCRYPT_SALT_LEN); | |
| 680 | + | |
| 681 | + B = new BCrypt(); | |
| 682 | + hashed = B.crypt_raw(passwordb, saltb, rounds); | |
| 683 | + | |
| 684 | + rs.append("$2"); | |
| 685 | + if (minor >= 'a') | |
| 686 | + rs.append(minor); | |
| 687 | + rs.append("$"); | |
| 688 | + if (rounds < 10) | |
| 689 | + rs.append("0"); | |
| 690 | + rs.append(Integer.toString(rounds)); | |
| 691 | + rs.append("$"); | |
| 692 | + rs.append(encode_base64(saltb, saltb.length)); | |
| 693 | + rs.append(encode_base64(hashed, | |
| 694 | + bf_crypt_ciphertext.length * 4 - 1)); | |
| 695 | + return rs.toString(); | |
| 696 | + } | |
| 697 | + | |
| 698 | + /** | |
| 699 | + * Generate a salt for use with the BCrypt.hashpw() method | |
| 700 | + * log_rounds the log2 of the number of rounds of | |
| 701 | + * hashing to apply - the work factor therefore increases as | |
| 702 | + * 2**log_rounds. | |
| 703 | + * random an instance of SecureRandom to use | |
| 704 | + * an encoded salt value | |
| 705 | + */ | |
| 706 | + public static String gensalt(int log_rounds, SecureRandom random) { | |
| 707 | + StringBuffer rs = new StringBuffer(); | |
| 708 | + byte rnd[] = new byte[BCRYPT_SALT_LEN]; | |
| 709 | + | |
| 710 | + random.nextBytes(rnd); | |
| 711 | + | |
| 712 | + rs.append("$2a$"); | |
| 713 | + if (log_rounds < 10) | |
| 714 | + rs.append("0"); | |
| 715 | + rs.append(Integer.toString(log_rounds)); | |
| 716 | + rs.append("$"); | |
| 717 | + rs.append(encode_base64(rnd, rnd.length)); | |
| 718 | + return rs.toString(); | |
| 719 | + } | |
| 720 | + | |
| 721 | + /** | |
| 722 | + * Generate a salt for use with the BCrypt.hashpw() method | |
| 723 | + * log_rounds the log2 of the number of rounds of | |
| 724 | + * hashing to apply - the work factor therefore increases as | |
| 725 | + * 2**log_rounds. | |
| 726 | + * an encoded salt value | |
| 727 | + */ | |
| 728 | + public static String gensalt(int log_rounds) { | |
| 729 | + return gensalt(log_rounds, new SecureRandom()); | |
| 730 | + } | |
| 731 | + | |
| 732 | + /** | |
| 733 | + * Generate a salt for use with the BCrypt.hashpw() method, | |
| 734 | + * selecting a reasonable default for the number of hashing | |
| 735 | + * rounds to apply | |
| 736 | + * an encoded salt value | |
| 737 | + */ | |
| 738 | + public static String gensalt() { | |
| 739 | + return gensalt(GENSALT_DEFAULT_LOG2_ROUNDS); | |
| 740 | + } | |
| 741 | + | |
| 742 | + /** | |
| 743 | + * Check that a plaintext password matches a previously hashed | |
| 744 | + * one | |
| 745 | + * plaintext the plaintext password to verify | |
| 746 | + * hashed the previously-hashed password | |
| 747 | + * true if the passwords match, false otherwise | |
| 748 | + */ | |
| 749 | + public static boolean checkpw(String plaintext, String hashed) { | |
| 750 | + return (hashed.compareTo(hashpw(plaintext, hashed)) == 0); | |
| 751 | + } | |
| 752 | +} | |
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