bCrypt.js

/* MIT License

Copyright (c) 2016 Nevins Bartolomeo

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. */


function keyState() {
    this.P = P_ORIG.slice(0);
    this.S = S_ORIG.slice(0);
    this.offp = 0;
}

var GENSALT_DEFAULT_LOG2_ROUNDS = 10;
var BCRYPT_SALT_LEN = 16;
var BLOWFISH_NUM_ROUNDS = 16;
var MAX_EXECUTION_TIME = 100;
var P_ORIG = [0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822,
    0x299f31d0, 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377,
    0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5,
    0xb5470917, 0x9216d5d9, 0x8979fb1b
];
var S_ORIG = [0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed,
    0x6a267e96, 0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7,
    0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3,
    0xf4933d7e, 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
    0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, 0xc5d1b023,
    0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e,
    0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda,
    0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
    0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af,
    0x7c72e993, 0xb3ee1411, 0x636fbc2a, 0x2ba9c55d, 0x741831f6,
    0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, 0x7a325381,
    0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
    0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d,
    0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5,
    0x0f6d6ff3, 0x83f44239, 0x2e0b4482, 0xa4842004, 0x69c8f04a,
    0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
    0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, 0x6eef0b6c,
    0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176,
    0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3,
    0x3b8b5ebe, 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
    0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, 0x37d0d724,
    0xd00a1248, 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b,
    0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b, 0x976ce0bd,
    0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
    0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f,
    0x9b30952c, 0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd,
    0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39,
    0xb9d3fbdb, 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
    0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, 0x3c7516df,
    0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760,
    0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e,
    0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
    0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98,
    0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, 0x9a53e479, 0xb6f84565,
    0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341,
    0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
    0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0,
    0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64,
    0x8888b812, 0x900df01c, 0x4fad5ea0, 0x688fc31c, 0xd1cff191,
    0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
    0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, 0xb4a84fe0,
    0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705,
    0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5,
    0xfb9d35cf, 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
    0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, 0x2464369b,
    0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f,
    0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9, 0x11c81968,
    0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
    0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5,
    0x571be91f, 0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6,
    0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799,
    0x6e85076a, 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
    0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, 0xecaa8c71,
    0x699a17ff, 0x5664526c, 0xc2b19ee1, 0x193602a5, 0x75094c29,
    0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65, 0x6b8fe4d6,
    0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
    0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f,
    0x3ebaefc9, 0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286,
    0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec,
    0x5716f2b8, 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
    0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, 0xd19113f9,
    0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc,
    0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e,
    0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
    0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290,
    0x24977c79, 0x5679b072, 0xbcaf89af, 0xde9a771f, 0xd9930810,
    0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, 0x501adde6,
    0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
    0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847,
    0x3215d908, 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451,
    0x50940002, 0x133ae4dd, 0x71dff89e, 0x10314e55, 0x81ac77d6,
    0x5f11199b, 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
    0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, 0x86e34570,
    0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa,
    0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978,
    0x9c10b36a, 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
    0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, 0x5223a708,
    0xf71312b6, 0xebadfe6e, 0xeac31f66, 0xe3bc4595, 0xa67bc883,
    0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5, 0x65582185,
    0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
    0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830,
    0xeb61bd96, 0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239,
    0xd59e9e0b, 0xcbaade14, 0xeecc86bc, 0x60622ca7, 0x9cab5cab,
    0xb2f3846e, 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
    0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, 0x9b540b19,
    0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77,
    0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1,
    0x7858ba99, 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
    0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef,
    0x34c6ffea, 0xfe28ed61, 0xee7c3c73, 0x5d4a14d9, 0xe864b7e3,
    0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15,
    0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
    0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2,
    0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492,
    0x47848a0b, 0x5692b285, 0x095bbf00, 0xad19489d, 0x1462b174,
    0x23820e00, 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
    0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, 0x7cde3759,
    0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e,
    0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc,
    0x800bcadc, 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
    0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, 0xc5c43465,
    0x713e38d8, 0x3d28f89e, 0xf16dff20, 0x153e21e7, 0x8fb03d4a,
    0xe6e39f2b, 0xdb83adf7, 0xe93d5a68, 0x948140f7, 0xf64c261c,
    0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
    0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e,
    0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af,
    0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0,
    0x31cb8504, 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
    0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, 0x68dc1462,
    0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c,
    0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec, 0xce78a399,
    0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
    0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74,
    0xdd5b4332, 0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397,
    0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, 0xfe6ba9b7,
    0xd096954b, 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
    0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, 0xfdf8e802,
    0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22,
    0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4,
    0x5d886e17, 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
    0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2,
    0x02e1329e, 0xaf664fd1, 0xcad18115, 0x6b2395e0, 0x333e92e1,
    0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c,
    0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
    0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341,
    0x992eff74, 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8,
    0x991be14c, 0xdb6e6b0d, 0xc67b5510, 0x6d672c37, 0x2765d43b,
    0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
    0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88,
    0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979,
    0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc,
    0x782ef11c, 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
    0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, 0x44421659,
    0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f,
    0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086, 0x60787bf8,
    0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
    0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be,
    0xbde8ae24, 0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2,
    0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, 0xb475f255,
    0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
    0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, 0xb90bace1,
    0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09,
    0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025,
    0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
    0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01,
    0xa70683fa, 0xa002b5c4, 0x0de6d027, 0x9af88c27, 0x773f8641,
    0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa,
    0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
    0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409,
    0x4b7c0188, 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9,
    0x1ac15bb4, 0xd39eb8fc, 0xed545578, 0x08fca5b5, 0xd83d7cd3,
    0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
    0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234,
    0x92638212, 0x670efa8e, 0x406000e0, 0x3a39ce37, 0xd3faf5cf,
    0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, 0xd3822740,
    0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
    0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f,
    0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d,
    0xd5730a1d, 0x4cd04dc6, 0x2939bbdb, 0xa9ba4650, 0xac9526e8,
    0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
    0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba,
    0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1,
    0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69,
    0x77fa0a59, 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
    0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a,
    0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b,
    0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6, 0x47b0acfd,
    0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
    0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4,
    0x88f46dba, 0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2,
    0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb,
    0x26dcf319, 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
    0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, 0x4de81751,
    0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce,
    0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369,
    0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
    0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd,
    0x1b588d40, 0xccd2017f, 0x6bb4e3bb, 0xdda26a7e, 0x3a59ff45,
    0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, 0x8d6612ae,
    0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
    0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08,
    0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d,
    0x06b89fb4, 0xce6ea048, 0x6f3f3b82, 0x3520ab82, 0x011a1d4b,
    0x277227f8, 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
    0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e,
    0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a,
    0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c,
    0xe0b12b4f, 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
    0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, 0xfae59361,
    0xceb69ceb, 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c,
    0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be,
    0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
    0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d,
    0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891,
    0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5,
    0xf6fb2299, 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
    0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, 0xde966292,
    0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a,
    0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2,
    0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
    0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c,
    0xf746ce76, 0x77afa1c5, 0x20756060, 0x85cbfe4e, 0x8ae88dd8,
    0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, 0x01c36ae4,
    0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
    0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
];
var BF_CRYPT_CIPHERTEXT = [0x4f727068, 0x65616e42, 0x65686f6c, 0x64657253,
    0x63727944, 0x6f756274
];
var BASE64_CODE = ['.', '/', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
    'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
    'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
    'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
    'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8',
    '9'
];
var INDEX_64 = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1,
    54, 55, 56, 57, 58, 59, 60, 61, 62, 63, -1, -1, -1, -1, -1, -1, -1,
    2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
    21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, 28, 29, 30, 31,
    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
    49, 50, 51, 52, 53, -1, -1, -1, -1, -1
];

function getByte(c) {
    var ret = 0;
    try {
        var b = c.charCodeAt(0);
    } catch (err) {
        b = c;
    }
    if (b > 127) {
        return -128 + (b % 128);
    } else {
        return b;
    }
};

function encode_base64(d, len) {
    var off = 0;
    var rs = [];
    var c1;
    var c2;
    if (len <= 0 || len > d.length)
        throw "Invalid len";
    while (off < len) {
        c1 = d[off++] & 0xff;
        rs.push(BASE64_CODE[(c1 >> 2) & 0x3f]);
        c1 = (c1 & 0x03) << 4;
        if (off >= len) {
            rs.push(BASE64_CODE[c1 & 0x3f]);
            break;
        }
        c2 = d[off++] & 0xff;
        c1 |= (c2 >> 4) & 0x0f;
        rs.push(BASE64_CODE[c1 & 0x3f]);
        c1 = (c2 & 0x0f) << 2;
        if (off >= len) {
            rs.push(BASE64_CODE[c1 & 0x3f]);
            break;
        }
        c2 = d[off++] & 0xff;
        c1 |= (c2 >> 6) & 0x03;
        rs.push(BASE64_CODE[c1 & 0x3f]);
        rs.push(BASE64_CODE[c2 & 0x3f]);
    }
    return rs.join('');
};

function char64(x) {
    var code = x.charCodeAt(0);
    if (code < 0 || code > INDEX_64.length) {
        return -1;
    }
    return INDEX_64[code];
};

function decode_base64(s, maxolen) {
    var off = 0;
    var slen = s.length;
    var olen = 0;
    var rs = [];
    var c1, c2, c3, c4, o;
    if (maxolen <= 0)
        throw "Invalid maxolen";
    while (off < slen - 1 && olen < maxolen) {
        c1 = char64(s.charAt(off++));
        c2 = char64(s.charAt(off++));
        if (c1 == -1 || c2 == -1) {
            break;
        }
        o = getByte(c1 << 2);
        o |= (c2 & 0x30) >> 4;
        rs.push(String.fromCharCode(o));
        if (++olen >= maxolen || off >= slen) {
            break;
        }
        c3 = char64(s.charAt(off++));
        if (c3 == -1) {
            break;
        }
        o = getByte((c2 & 0x0f) << 4);
        o |= (c3 & 0x3c) >> 2;
        rs.push(String.fromCharCode(o));
        if (++olen >= maxolen || off >= slen) {
            break;
        }
        c4 = char64(s.charAt(off++));
        o = getByte((c3 & 0x03) << 6);
        o |= c4;
        rs.push(String.fromCharCode(o));
        ++olen;
    }
    var ret = [];
    for (off = 0; off < olen; off++) {
        ret.push(getByte(rs[off]));
    }
    return ret;
};

function encipher(lr, off, state) {
    var i;
    var n;
    var l = lr[off];
    var r = lr[off + 1];

    l ^= state.P[0];
    for (i = 0; i <= BLOWFISH_NUM_ROUNDS - 2;) {
        // Feistel substitution on left word
        n = state.S[(l >> 24) & 0xff];
        n += state.S[0x100 | ((l >> 16) & 0xff)];
        n ^= state.S[0x200 | ((l >> 8) & 0xff)];
        n += state.S[0x300 | (l & 0xff)];
        r ^= n ^ state.P[++i];

        // Feistel substitution on right word
        n = state.S[(r >> 24) & 0xff];
        n += state.S[0x100 | ((r >> 16) & 0xff)];
        n ^= state.S[0x200 | ((r >> 8) & 0xff)];
        n += state.S[0x300 | (r & 0xff)];
        l ^= n ^ state.P[++i];
    }
    lr[off] = r ^ state.P[BLOWFISH_NUM_ROUNDS + 1];
    lr[off + 1] = l;
    return state
};

function streamtoword(data, state) {
    var i;
    var word = 0;
    var off = state.offp;
    for (i = 0; i < 4; i++) {
        word = (word << 8) | (data[off] & 0xff);
        off = (off + 1) % data.length;
    }
    state.offp = off;
    return word;
};

function key(key, state) {
    var i;
    state.offp = 0;
    var lr = new Array(0x00000000, 0x00000000);
    var plen = state.P.length;
    var slen = state.S.length;

    for (i = 0; i < plen; i++) {
        state.P[i] = state.P[i] ^ streamtoword(key, state);
    }
    for (i = 0; i < plen; i += 2) {
        encipher(lr, 0, state);
        state.P[i] = lr[0];
        state.P[i + 1] = lr[1];
    }

    for (i = 0; i < slen; i += 2) {
        encipher(lr, 0, state);
        state.S[i] = lr[0];
        state.S[i + 1] = lr[1];
    }
    return state
};

function ekskey(data, key, state) {
    var i;
    state.offp = 0;
    var lr = new Array(0x00000000, 0x00000000);
    var plen = state.P.length;
    var slen = state.S.length;

    for (i = 0; i < plen; i++)
        state.P[i] = state.P[i] ^ streamtoword(key, state);
    state.offp = 0;
    for (i = 0; i < plen; i += 2) {
        lr[0] ^= streamtoword(data, state);
        lr[1] ^= streamtoword(data, state);
        encipher(lr, 0, state);
        state.P[i] = lr[0];
        state.P[i + 1] = lr[1];
    }
    for (i = 0; i < slen; i += 2) {
        lr[0] ^= streamtoword(data, state);
        lr[1] ^= streamtoword(data, state);
        encipher(lr, 0, state);
        state.S[i] = lr[0];
        state.S[i + 1] = lr[1];
    }
    return state
};

function crypt_raw(password, salt, log_rounds, cdata, callback, progress) {
    var rounds;
    var j;
    var clen = cdata.length;
    var one_percent;

    if (log_rounds < 4)
        throw "Minium of 4 rounds required, changing to default";
    if (log_rounds > 30)
        throw "Maximum of 30 rounds exceded";
    if (salt.length != BCRYPT_SALT_LEN)
        throw "Bad salt length";

    rounds = 1 << log_rounds;
    one_percent = Math.floor(rounds / 100) + 1;
    var state = new keyState();
    ekskey(salt, password, state);
    var i = 0;
    setTimeout(function() {
        if (i < rounds) {
            var start = new Date();
            for (; i != rounds;) {
                i = i + 1;
                key(password, state);
                key(salt, state);
                if (i % one_percent == 0) {
                    progress();
                }
                if ((new Date() - start) > MAX_EXECUTION_TIME) {
                    break;
                }
            }
            setTimeout(arguments.callee, 0);
        } else {
            for (i = 0; i < 64; i++) {
                for (j = 0; j < (clen >> 1); j++) {
                    encipher(cdata, j << 1, state);
                }
            }
            var ret = [];
            for (i = 0; i < clen; i++) {
                ret.push(getByte((cdata[i] >> 24) & 0xff));
                ret.push(getByte((cdata[i] >> 16) & 0xff));
                ret.push(getByte((cdata[i] >> 8) & 0xff));
                ret.push(getByte(cdata[i] & 0xff));
            }
            callback(ret);
        }
    }, 0);
};

function password_to_bytes(password) {
    var passwordb = [];
    for (var n = 0; n < password.length; n++) {
        var c = password.charCodeAt(n);
        if (c < 128) {
            passwordb.push(c);
        } else if ((c > 127) && (c < 2048)) {
            passwordb.push((c >> 6) | 192);
            passwordb.push((c & 63) | 128);
        } else if ((c >= 55296) && (c <= 56319)) {
            n++;
            if (n > password.length) {
                throw "utf-16 Decoding error: lead surrogate found without trail surrogate";
            }
            c = password.charCodeAt(n);
            if (c < 56320 || c > 57343) {
                throw "utf-16 Decoding error: trail surrogate not in the range of 0xdc00 through 0xdfff";
            }
            c = ((password.charCodeAt(n - 1) - 55296) << 10) + (c - 56320) + 65536;
            passwordb.push((c >> 18) | 240);
            passwordb.push(((c >> 12) & 63) | 128);
            passwordb.push(((c >> 6) & 63) | 128);
            passwordb.push((c & 63) | 128);
        } else {
            passwordb.push((c >> 12) | 224);
            passwordb.push(((c >> 6) & 63) | 128);
            passwordb.push((c & 63) | 128);
        }
    }
    return passwordb
};

/*
 * callback: a function that will be passed the hash when it is complete
 * progress: optional - this function will be called every time 1% of hashing
 *      is complete.
 */
function hashpw(password, salt, callback, progress) {
    var real_salt;
    var passwordb = [];
    var saltb = [];
    var hashed = [];
    var minor = String.fromCharCode(0);
    var rounds = 0;
    var off = 0;

    if (!progress) {
        progress = function() {};
    }

    if (salt.charAt(0) != '$' || salt.charAt(1) != '2')
        throw "Invalid salt version";
    if (salt.charAt(2) == '$')
        off = 3;
    else {
        minor = salt.charAt(2);
        if ((minor != 'a' && minor != 'b') || salt.charAt(3) != '$')
            throw "Invalid salt revision";
        off = 4;
    }

    // Extract number of rounds
    if (salt.charAt(off + 2) > '$')
        throw "Missing salt rounds";
    var r1 = parseInt(salt.substring(off, off + 1)) * 10;
    var r2 = parseInt(salt.substring(off + 1, off + 2));
    rounds = r1 + r2;
    real_salt = salt.substring(off + 3, off + 25);
    password = password + (minor >= 'a' ? "\000" : "");
    passwordb = password_to_bytes(password)
    saltb = decode_base64(real_salt, BCRYPT_SALT_LEN);
    crypt_raw(
        passwordb,
        saltb,
        rounds,
        BF_CRYPT_CIPHERTEXT.slice(0),
        function(hashed) {
            var rs = [];
            rs.push("$2");
            if (minor >= 'a')
                rs.push(minor);
            rs.push("$");
            if (rounds < 10)
                rs.push("0");
            rs.push(rounds.toString());
            rs.push("$");
            rs.push(encode_base64(saltb, saltb.length));
            rs.push(encode_base64(hashed, BF_CRYPT_CIPHERTEXT.length * 4 - 1));
            callback(rs.join(''));
        },
        progress);
};

function gensalt(rounds) {
    var iteration_count = rounds;
    if (iteration_count < 4 || iteration_count > 30) {
        throw "Rounds exceded maximum (30)!"
    }
    var output = [];
    output.push("$2a$");
    if (iteration_count < 10)
        output.push("0");
    output.push(iteration_count.toString());
    output.push('$');
    var s1 = new Int8Array(BCRYPT_SALT_LEN);
    window.crypto.getRandomValues(s1);
    output.push(encode_base64(s1, BCRYPT_SALT_LEN));
    return output.join('');
};

function checkpw(plaintext, hashed, callback, progress) {
    var off = 0;
    if (hashed.charAt(0) != '$' || hashed.charAt(1) != '2')
        throw "Invalid salt version";
    if (hashed.charAt(2) == '$')
        off = 3;
    else {
        minor = hashed.charAt(2);
        if ((minor != 'a' && minor != 'b') || hashed.charAt(3) != '$') {
            throw "Invalid salt revision";
        }
        off = 4;
    }
    salt = hashed.substring(0, off + 25);
    hashpw(plaintext, salt, function(try_pass) {
        var ret = 0;
        for (var i = 0; i < hashed.length; i++) {
            ret |= getByte(hashed[i]) ^ getByte(try_pass[i])
        }
        callback(ret == 0);
    }, progress);
};