| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* GATE PROJECT LICENSE: | ||
| 2 | +----------------------------------------------------------------------------+ | ||
| 3 | | Copyright(c) 2018-2025, Stefan Meislinger <sm@opengate.at> | | ||
| 4 | | All rights reserved. | | ||
| 5 | | | | ||
| 6 | | Redistribution and use in source and binary forms, with or without | | ||
| 7 | | modification, are permitted provided that the following conditions are met:| | ||
| 8 | | | | ||
| 9 | | 1. Redistributions of source code must retain the above copyright notice, | | ||
| 10 | | this list of conditions and the following disclaimer. | | ||
| 11 | | 2. Redistributions in binary form must reproduce the above copyright | | ||
| 12 | | notice, this list of conditions and the following disclaimer in the | | ||
| 13 | | documentation and/or other materials provided with the distribution. | | ||
| 14 | | | | ||
| 15 | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"| | ||
| 16 | | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | ||
| 17 | | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | ||
| 18 | | ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | | ||
| 19 | | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | ||
| 20 | | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | ||
| 21 | | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | ||
| 22 | | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | ||
| 23 | | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | ||
| 24 | | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | | ||
| 25 | | THE POSSIBILITY OF SUCH DAMAGE. | | ||
| 26 | +----------------------------------------------------------------------------+ | ||
| 27 | */ | ||
| 28 | |||
| 29 | #include <gate/encode/blockciphers.h> | ||
| 30 | #include <gate/results.h> | ||
| 31 | |||
| 32 | /* P init values */ | ||
| 33 | static gate_uint32_t const blowfish_init_p[18] = | ||
| 34 | { | ||
| 35 | 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, | ||
| 36 | 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, | ||
| 37 | 0x9216d5d9, 0x8979fb1b | ||
| 38 | }; | ||
| 39 | |||
| 40 | /* S init values */ | ||
| 41 | static gate_uint32_t const blowfish_init_s[4][256] = | ||
| 42 | { | ||
| 43 | { | ||
| 44 | 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, | ||
| 45 | 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, | ||
| 46 | 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, | ||
| 47 | 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, | ||
| 48 | 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, | ||
| 49 | 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, | ||
| 50 | 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, | ||
| 51 | 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, | ||
| 52 | 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, | ||
| 53 | 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, | ||
| 54 | 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, | ||
| 55 | 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, | ||
| 56 | 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, | ||
| 57 | 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, | ||
| 58 | 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, | ||
| 59 | 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, | ||
| 60 | 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, | ||
| 61 | 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, | ||
| 62 | 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, | ||
| 63 | 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, | ||
| 64 | 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, | ||
| 65 | 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, | ||
| 66 | 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, | ||
| 67 | 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, | ||
| 68 | 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, | ||
| 69 | 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, | ||
| 70 | 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, | ||
| 71 | 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, | ||
| 72 | 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, | ||
| 73 | 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, | ||
| 74 | 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, | ||
| 75 | 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a | ||
| 76 | }, | ||
| 77 | { | ||
| 78 | 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, | ||
| 79 | 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, | ||
| 80 | 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, | ||
| 81 | 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, | ||
| 82 | 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, | ||
| 83 | 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, | ||
| 84 | 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, | ||
| 85 | 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, | ||
| 86 | 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, | ||
| 87 | 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, | ||
| 88 | 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, | ||
| 89 | 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, | ||
| 90 | 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, | ||
| 91 | 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, | ||
| 92 | 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, | ||
| 93 | 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, | ||
| 94 | 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, | ||
| 95 | 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, | ||
| 96 | 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, | ||
| 97 | 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, | ||
| 98 | 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, | ||
| 99 | 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, | ||
| 100 | 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, | ||
| 101 | 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, | ||
| 102 | 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, | ||
| 103 | 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, | ||
| 104 | 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, | ||
| 105 | 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, | ||
| 106 | 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, | ||
| 107 | 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, | ||
| 108 | 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, | ||
| 109 | 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7 | ||
| 110 | }, | ||
| 111 | { | ||
| 112 | 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, | ||
| 113 | 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, | ||
| 114 | 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, | ||
| 115 | 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, | ||
| 116 | 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, | ||
| 117 | 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, | ||
| 118 | 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, | ||
| 119 | 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, | ||
| 120 | 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, | ||
| 121 | 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, | ||
| 122 | 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, | ||
| 123 | 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, | ||
| 124 | 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, | ||
| 125 | 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, | ||
| 126 | 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, | ||
| 127 | 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, | ||
| 128 | 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, | ||
| 129 | 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, | ||
| 130 | 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, | ||
| 131 | 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, | ||
| 132 | 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc, | ||
| 133 | 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61, | ||
| 134 | 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, | ||
| 135 | 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c, | ||
| 136 | 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633, | ||
| 137 | 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, | ||
| 138 | 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027, | ||
| 139 | 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62, | ||
| 140 | 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, | ||
| 141 | 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc, | ||
| 142 | 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c, | ||
| 143 | 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0 | ||
| 144 | }, | ||
| 145 | { | ||
| 146 | 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe, | ||
| 147 | 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, | ||
| 148 | 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6, | ||
| 149 | 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22, | ||
| 150 | 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, | ||
| 151 | 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59, | ||
| 152 | 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51, | ||
| 153 | 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, | ||
| 154 | 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28, | ||
| 155 | 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd, | ||
| 156 | 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, | ||
| 157 | 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f, | ||
| 158 | 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32, | ||
| 159 | 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, | ||
| 160 | 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb, | ||
| 161 | 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47, | ||
| 162 | 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, | ||
| 163 | 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048, | ||
| 164 | 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd, | ||
| 165 | 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, | ||
| 166 | 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f, | ||
| 167 | 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525, | ||
| 168 | 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, | ||
| 169 | 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e, | ||
| 170 | 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d, | ||
| 171 | 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, | ||
| 172 | 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc, | ||
| 173 | 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a, | ||
| 174 | 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, | ||
| 175 | 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060, | ||
| 176 | 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9, | ||
| 177 | 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6 | ||
| 178 | } | ||
| 179 | }; | ||
| 180 | |||
| 181 | 76050 | static void save_uint32(gate_uint32_t value, unsigned char dst[4]) | |
| 182 | { | ||
| 183 | 76050 | dst[0] = (unsigned char)((value >> 24) & 0x0ff); | |
| 184 | 76050 | dst[1] = (unsigned char)((value >> 16) & 0x0ff); | |
| 185 | 76050 | dst[2] = (unsigned char)((value >> 8) & 0x0ff); | |
| 186 | 76050 | dst[3] = (unsigned char)((value) & 0x0ff); | |
| 187 | 76050 | } | |
| 188 | 17072 | static gate_uint32_t load_uint32(unsigned char const src[4]) | |
| 189 | { | ||
| 190 | 17072 | gate_uint32_t ret = | |
| 191 | 17072 | (((gate_uint32_t)src[0]) << 24) | |
| 192 | 17072 | | (((gate_uint32_t)src[1]) << 16) | |
| 193 | 17072 | | (((gate_uint32_t)src[2]) << 8) | |
| 194 | 17072 | | (((gate_uint32_t)src[3])) | |
| 195 | ; | ||
| 196 | 17072 | return ret; | |
| 197 | } | ||
| 198 | |||
| 199 | 67456 | static gate_uint32_t feistel(gate_blowfish_t const* bf, gate_uint32_t value) | |
| 200 | { | ||
| 201 | unsigned char ndx[4]; | ||
| 202 | gate_uint32_t result; | ||
| 203 | 67456 | save_uint32(value, ndx); | |
| 204 | 67456 | result = ((bf->S[0][ndx[0]] + bf->S[1][ndx[1]]) ^ bf->S[2][ndx[2]]) + bf->S[3][ndx[3]]; | |
| 205 | 67456 | return result; | |
| 206 | } | ||
| 207 | |||
| 208 | 24 | static void block_xor(unsigned char const srcblock_l[4], unsigned char const srcblock_r[4], | |
| 209 | unsigned char const xorblock_l[4], unsigned char const xorblock_r[4], | ||
| 210 | unsigned char dstblock_l[4], unsigned char dstblock_r[4]) | ||
| 211 | { | ||
| 212 | 24 | gate_uint32_t l = load_uint32(srcblock_l); | |
| 213 | 24 | gate_uint32_t r = load_uint32(srcblock_r); | |
| 214 | 24 | gate_uint32_t xl = load_uint32(xorblock_l); | |
| 215 | 24 | gate_uint32_t xr = load_uint32(xorblock_r); | |
| 216 | 24 | save_uint32(l ^ xl, dstblock_l); | |
| 217 | 24 | save_uint32(r ^ xr, dstblock_r); | |
| 218 | 24 | } | |
| 219 | |||
| 220 | 4192 | static void block_encrypt(gate_blowfish_t const* bf, | |
| 221 | unsigned char const srcblock_l[4], unsigned char const srcblock_r[4], | ||
| 222 | unsigned char* dstblock_l, unsigned char* dstblock_r) | ||
| 223 | { | ||
| 224 | 4192 | gate_uint32_t l = load_uint32(srcblock_l); | |
| 225 | 4192 | gate_uint32_t r = load_uint32(srcblock_r); | |
| 226 | unsigned int n; | ||
| 227 | |||
| 228 |
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37728 | for (n = 0; n < 16; n += 2) |
| 229 | { | ||
| 230 | 33536 | l ^= bf->P[n]; | |
| 231 | 33536 | r ^= feistel(bf, l); | |
| 232 | 33536 | r ^= bf->P[n + 1]; | |
| 233 | 33536 | l ^= feistel(bf, r); | |
| 234 | } | ||
| 235 | 4192 | l ^= bf->P[16]; | |
| 236 | 4192 | r ^= bf->P[17]; | |
| 237 | /* swap l,r */ | ||
| 238 | 4192 | save_uint32(l, &dstblock_r[0]); | |
| 239 | 4192 | save_uint32(r, &dstblock_l[0]); | |
| 240 | 4192 | } | |
| 241 | 4168 | static void block_encrypt2(gate_blowfish_t const* bf, gate_blowfish_block_t const* src, gate_blowfish_block_t* dst) | |
| 242 | { | ||
| 243 | 4168 | block_encrypt(bf, src->L, src->R, dst->L, dst->R); | |
| 244 | 4168 | } | |
| 245 | |||
| 246 | 24 | static void block_decrypt(gate_blowfish_t const* bf, | |
| 247 | unsigned char const* srcblock_l, unsigned char const* srcblock_r, | ||
| 248 | unsigned char* dstblock_l, unsigned char* dstblock_r) | ||
| 249 | { | ||
| 250 | 24 | gate_uint32_t l = load_uint32(&srcblock_l[0]); | |
| 251 | 24 | gate_uint32_t r = load_uint32(&srcblock_r[0]); | |
| 252 | unsigned int n; | ||
| 253 | |||
| 254 |
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216 | for (n = 16; n > 0; n -= 2) |
| 255 | { | ||
| 256 | 192 | l ^= bf->P[n + 1]; | |
| 257 | 192 | r ^= feistel(bf, l); | |
| 258 | 192 | r ^= bf->P[n]; | |
| 259 | 192 | l ^= feistel(bf, r); | |
| 260 | } | ||
| 261 | 24 | l ^= bf->P[1]; | |
| 262 | 24 | r ^= bf->P[0]; | |
| 263 | |||
| 264 | /* swap l, r */ | ||
| 265 | 24 | save_uint32(l, &dstblock_r[0]); | |
| 266 | 24 | save_uint32(r, &dstblock_l[0]); | |
| 267 | 24 | } | |
| 268 | |||
| 269 | 8 | gate_result_t gate_blowfish_init(gate_blowfish_t* bf, void const* key, gate_size_t keylength) | |
| 270 | { | ||
| 271 | unsigned i, j, k; | ||
| 272 | 8 | unsigned char const* ptrkey = (unsigned char const*)key; | |
| 273 | gate_uint32_t xorvalue; | ||
| 274 | 8 | gate_blowfish_block_t block = { { 0, 0, 0, 0 }, { 0, 0, 0, 0 } }; | |
| 275 | |||
| 276 |
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8 | if (bf == NULL) |
| 277 | { | ||
| 278 | ✗ | return GATE_RESULT_NULLPOINTER; | |
| 279 | } | ||
| 280 | |||
| 281 |
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8 | if ((keylength > 0) && (key == NULL)) |
| 282 | { | ||
| 283 | ✗ | return GATE_RESULT_NULLPOINTER; | |
| 284 | } | ||
| 285 | |||
| 286 | /*initialize object P boxes*/ | ||
| 287 |
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152 | for (i = 0; i < 18; ++i) |
| 288 | { | ||
| 289 | 144 | bf->P[i] = blowfish_init_p[i]; | |
| 290 | } | ||
| 291 | /*initialize object S boxes*/ | ||
| 292 |
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40 | for (i = 0; i < 4; ++i) |
| 293 | { | ||
| 294 |
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8224 | for (j = 0; j < 256; ++j) |
| 295 | { | ||
| 296 | 8192 | bf->S[i][j] = blowfish_init_s[i][j]; | |
| 297 | } | ||
| 298 | } | ||
| 299 | |||
| 300 | /* XOR P with key */ | ||
| 301 | 8 | k = 0; | |
| 302 |
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8 | if (keylength > 0) |
| 303 | { | ||
| 304 |
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152 | for (i = 0; i < 18; ++i) |
| 305 | { | ||
| 306 | 144 | xorvalue = 0; | |
| 307 |
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720 | for (j = 0; j < 4; ++j) |
| 308 | { | ||
| 309 | 576 | xorvalue = (xorvalue << 8) | (gate_uint32_t)(ptrkey[k]); | |
| 310 | 576 | ++k; | |
| 311 |
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576 | if (k >= keylength) |
| 312 | { | ||
| 313 | 16 | k = 0; | |
| 314 | } | ||
| 315 | } | ||
| 316 | 144 | bf->P[i] ^= xorvalue; | |
| 317 | } | ||
| 318 | } | ||
| 319 | |||
| 320 | 8 | i = 0; | |
| 321 |
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80 | while (i < 18) |
| 322 | { | ||
| 323 | 72 | block_encrypt2(bf, &block, &block); | |
| 324 | 72 | bf->P[i] = load_uint32(&block.L[0]); | |
| 325 | 72 | ++i; | |
| 326 | 72 | bf->P[i] = load_uint32(&block.R[0]); | |
| 327 | 72 | ++i; | |
| 328 | } | ||
| 329 | |||
| 330 |
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40 | for (i = 0; i < 4; ++i) |
| 331 | { | ||
| 332 | 32 | k = 0; | |
| 333 |
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4128 | while (k < 256) |
| 334 | { | ||
| 335 | 4096 | block_encrypt2(bf, &block, &block); | |
| 336 | 4096 | bf->S[i][k] = load_uint32(&block.L[0]); | |
| 337 | 4096 | ++k; | |
| 338 | 4096 | bf->S[i][k] = load_uint32(&block.R[0]); | |
| 339 | 4096 | ++k; | |
| 340 | } | ||
| 341 | } | ||
| 342 | |||
| 343 | 8 | return GATE_RESULT_OK; | |
| 344 | } | ||
| 345 | |||
| 346 | 9 | gate_result_t gate_blowfish_block_init(gate_blowfish_block_t* block, gate_uint32_t l, gate_uint32_t r) | |
| 347 | { | ||
| 348 |
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9 | if (block == NULL) |
| 349 | { | ||
| 350 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 351 | } | ||
| 352 | 9 | save_uint32(l, block->L); | |
| 353 | 9 | save_uint32(r, block->R); | |
| 354 | 9 | return GATE_RESULT_OK; | |
| 355 | } | ||
| 356 | |||
| 357 | 40 | static void block_load(gate_blowfish_block_t* block, unsigned char const* ptr) | |
| 358 | { | ||
| 359 | 40 | gate_mem_copy(&block->L[0], &ptr[0], 4); | |
| 360 | 40 | gate_mem_copy(&block->R[0], &ptr[4], 4); | |
| 361 | 40 | } | |
| 362 | |||
| 363 | 4 | gate_result_t gate_blowfish_block_load(gate_blowfish_block_t* block, void const* buffer, gate_size_t bufferlen) | |
| 364 | { | ||
| 365 | 4 | unsigned char const* ptr = (unsigned char const*)buffer; | |
| 366 |
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4 | if ((block == NULL) || (buffer == NULL) || (bufferlen != 8)) |
| 367 | { | ||
| 368 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 369 | } | ||
| 370 | 4 | block_load(block, ptr); | |
| 371 | 4 | return GATE_RESULT_OK; | |
| 372 | } | ||
| 373 | |||
| 374 | |||
| 375 | 7 | gate_result_t gate_blowfish_encrypt(gate_blowfish_t* bf, void const* src, void* dst, gate_size_t length) | |
| 376 | { | ||
| 377 | 7 | unsigned char const* ptrsrc = (unsigned char const*)src; | |
| 378 | 7 | unsigned char* ptrdst = (unsigned char*)dst; | |
| 379 | unsigned n; | ||
| 380 |
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7 | if ((bf == NULL) || (src == NULL) || (dst == NULL) || ((length % 8) != 0)) |
| 381 | { | ||
| 382 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 383 | } | ||
| 384 |
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19 | for (n = 0; n < length; n += 8) |
| 385 | { | ||
| 386 | 12 | block_encrypt(bf, &ptrsrc[n], &ptrsrc[n + 4], &ptrdst[n], &ptrdst[n + 4]); | |
| 387 | } | ||
| 388 | 7 | return GATE_RESULT_OK; | |
| 389 | } | ||
| 390 | |||
| 391 | 1 | gate_result_t gate_blowfish_encrypt_stream(gate_blowfish_t* bf, gate_stream_t* instream, gate_stream_t* outstream) | |
| 392 | { | ||
| 393 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 394 | char buffer[8]; | ||
| 395 | gate_size_t buffer_used; | ||
| 396 |
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7 | while (GATE_SUCCEEDED(result)) |
| 397 | { | ||
| 398 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 399 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 400 |
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7 | if (buffer_used == 0) |
| 401 | { | ||
| 402 | /* end of stream reached */ | ||
| 403 | 1 | break; | |
| 404 | } | ||
| 405 |
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6 | if (buffer_used < sizeof(buffer)) |
| 406 | { | ||
| 407 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 408 | } | ||
| 409 | 6 | result = gate_blowfish_encrypt(bf, buffer, buffer, sizeof(buffer)); | |
| 410 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 411 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 412 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 413 | } | ||
| 414 | 1 | return result; | |
| 415 | } | ||
| 416 | |||
| 417 | 7 | gate_result_t gate_blowfish_decrypt(gate_blowfish_t* bf, void const* src, void* dst, gate_size_t length) | |
| 418 | { | ||
| 419 | 7 | unsigned char const* ptrsrc = (unsigned char const*)src; | |
| 420 | 7 | unsigned char* ptrdst = (unsigned char*)dst; | |
| 421 | unsigned n; | ||
| 422 |
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7 | if ((bf == NULL) || (src == NULL) || (dst == NULL) || ((length % 8) != 0)) |
| 423 | { | ||
| 424 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 425 | } | ||
| 426 |
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19 | for (n = 0; n < length; n += 8) |
| 427 | { | ||
| 428 | 12 | block_decrypt(bf, &ptrsrc[n], &ptrsrc[n + 4], &ptrdst[n], &ptrdst[n + 4]); | |
| 429 | } | ||
| 430 | 7 | return GATE_RESULT_OK; | |
| 431 | } | ||
| 432 | |||
| 433 | 1 | gate_result_t gate_blowfish_decrypt_stream(gate_blowfish_t* bf, gate_stream_t* instream, gate_stream_t* outstream) | |
| 434 | { | ||
| 435 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 436 | char buffer[8]; | ||
| 437 | gate_size_t buffer_used; | ||
| 438 |
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7 | while (GATE_SUCCEEDED(result)) |
| 439 | { | ||
| 440 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 441 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 442 |
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7 | if (buffer_used == 0) |
| 443 | { | ||
| 444 | /* end of stream reached */ | ||
| 445 | 1 | break; | |
| 446 | } | ||
| 447 |
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6 | if (buffer_used < sizeof(buffer)) |
| 448 | { | ||
| 449 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 450 | } | ||
| 451 | 6 | result = gate_blowfish_decrypt(bf, buffer, buffer, sizeof(buffer)); | |
| 452 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 453 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 454 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 455 | } | ||
| 456 | 1 | return result; | |
| 457 | } | ||
| 458 | |||
| 459 | |||
| 460 | 7 | gate_result_t gate_blowfish_encrypt_cbc(gate_blowfish_t* bf, void const* src, void* dst, gate_size_t length, gate_blowfish_block_t* block) | |
| 461 | { | ||
| 462 | 7 | unsigned char const* ptrsrc = (unsigned char const*)src; | |
| 463 | 7 | unsigned char* ptrdst = (unsigned char*)dst; | |
| 464 | unsigned n; | ||
| 465 |
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7 | if ((bf == NULL) || (src == NULL) || (dst == NULL) || ((length % 8) != 0)) |
| 466 | { | ||
| 467 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 468 | } | ||
| 469 |
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19 | for (n = 0; n < length; n += 8) |
| 470 | { | ||
| 471 | 12 | block_xor(&ptrsrc[n], &ptrsrc[n + 4], &block->L[0], &block->R[0], &ptrdst[n], &ptrdst[n + 4]); | |
| 472 | 12 | block_encrypt(bf, &ptrdst[n], &ptrdst[n + 4], &ptrdst[n], &ptrdst[n + 4]); | |
| 473 | 12 | block_load(block, &ptrdst[n]); | |
| 474 | } | ||
| 475 | 7 | return GATE_RESULT_OK; | |
| 476 | } | ||
| 477 | |||
| 478 | 1 | gate_result_t gate_blowfish_encrypt_cbc_stream(gate_blowfish_t* bf, gate_stream_t* instream, gate_stream_t* outstream, gate_blowfish_block_t* block) | |
| 479 | { | ||
| 480 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 481 | char buffer[8]; | ||
| 482 | gate_size_t buffer_used; | ||
| 483 |
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7 | while (GATE_SUCCEEDED(result)) |
| 484 | { | ||
| 485 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 486 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 487 |
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7 | if (buffer_used == 0) |
| 488 | { | ||
| 489 | /* end of stream reached */ | ||
| 490 | 1 | break; | |
| 491 | } | ||
| 492 |
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6 | if (buffer_used < sizeof(buffer)) |
| 493 | { | ||
| 494 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 495 | } | ||
| 496 | 6 | result = gate_blowfish_encrypt_cbc(bf, buffer, buffer, sizeof(buffer), block); | |
| 497 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 498 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 499 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 500 | } | ||
| 501 | 1 | return result; | |
| 502 | } | ||
| 503 | |||
| 504 | 7 | gate_result_t gate_blowfish_decrypt_cbc(gate_blowfish_t* bf, void const* src, void* dst, gate_size_t length, gate_blowfish_block_t* block) | |
| 505 | { | ||
| 506 | 7 | unsigned char const* ptrsrc = (unsigned char const*)src; | |
| 507 | 7 | unsigned char* ptrdst = (unsigned char*)dst; | |
| 508 | unsigned n; | ||
| 509 | gate_blowfish_block_t tmp; | ||
| 510 |
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7 | if ((bf == NULL) || (src == NULL) || (dst == NULL) || ((length % 8) != 0)) |
| 511 | { | ||
| 512 | ✗ | return GATE_RESULT_INVALIDARG; | |
| 513 | } | ||
| 514 |
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19 | for (n = 0; n < length; n += 8) |
| 515 | { | ||
| 516 | 12 | block_load(&tmp, &ptrsrc[n]); /* backup future cbc block */ | |
| 517 | 12 | block_decrypt(bf, &ptrsrc[n], &ptrsrc[n + 4], &ptrdst[n], &ptrdst[n + 4]); | |
| 518 | 12 | block_xor(&ptrdst[n], &ptrdst[n + 4], &block->L[0], &block->R[0], &ptrdst[n], &ptrdst[n + 4]); | |
| 519 | 12 | block_load(block, (unsigned char const*)&tmp); | |
| 520 | //cbfish_block_clone(&tmp, block); /* restore next cbc block */ | ||
| 521 | } | ||
| 522 | 7 | return GATE_RESULT_OK; | |
| 523 | } | ||
| 524 | |||
| 525 | 1 | gate_result_t gate_blowfish_decrypt_cbc_stream(gate_blowfish_t* bf, gate_stream_t* instream, gate_stream_t* outstream, gate_blowfish_block_t* block) | |
| 526 | { | ||
| 527 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 528 | char buffer[8]; | ||
| 529 | gate_size_t buffer_used; | ||
| 530 |
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7 | while (GATE_SUCCEEDED(result)) |
| 531 | { | ||
| 532 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 533 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 534 |
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7 | if (buffer_used == 0) |
| 535 | { | ||
| 536 | /* end of stream reached */ | ||
| 537 | 1 | break; | |
| 538 | } | ||
| 539 |
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6 | if (buffer_used < sizeof(buffer)) |
| 540 | { | ||
| 541 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 542 | } | ||
| 543 | 6 | result = gate_blowfish_decrypt_cbc(bf, buffer, buffer, sizeof(buffer), block); | |
| 544 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 545 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 546 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 547 | } | ||
| 548 | 1 | return result; | |
| 549 | } | ||
| 550 | |||
| 551 | |||
| 552 | |||
| 553 | #define XTEA_DELTA 0x9e3779b9 | ||
| 554 | #define XTEA_ROUNDS 32 | ||
| 555 | |||
| 556 | |||
| 557 | /* based on code from: https://en.wikipedia.org/wiki/XTEA */ | ||
| 558 | |||
| 559 | 12 | static void xtea_encipher(unsigned int num_rounds, gate_uint32_t v[2], gate_uint32_t const key[4]) | |
| 560 | { | ||
| 561 | unsigned int i; | ||
| 562 | 12 | gate_uint32_t v0 = v[0]; | |
| 563 | 12 | gate_uint32_t v1 = v[1]; | |
| 564 | 12 | gate_uint32_t sum = 0; | |
| 565 |
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396 | for (i = 0; i != num_rounds; ++i) |
| 566 | { | ||
| 567 | 384 | v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]); | |
| 568 | 384 | sum += XTEA_DELTA; | |
| 569 | 384 | v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum >> 11) & 3]); | |
| 570 | } | ||
| 571 | 12 | v[0] = v0; | |
| 572 | 12 | v[1] = v1; | |
| 573 | 12 | } | |
| 574 | |||
| 575 | 12 | static void xtea_decipher(unsigned int num_rounds, gate_uint32_t v[2], gate_uint32_t const key[4]) | |
| 576 | { | ||
| 577 | unsigned int i; | ||
| 578 | 12 | gate_uint32_t v0 = v[0]; | |
| 579 | 12 | gate_uint32_t v1 = v[1]; | |
| 580 | 12 | gate_uint32_t sum = XTEA_DELTA * num_rounds; | |
| 581 |
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396 | for (i = 0; i != num_rounds; ++i) |
| 582 | { | ||
| 583 | 384 | v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum >> 11) & 3]); | |
| 584 | 384 | sum -= XTEA_DELTA; | |
| 585 | 384 | v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]); | |
| 586 | } | ||
| 587 | 12 | v[0] = v0; | |
| 588 | 12 | v[1] = v1; | |
| 589 | 12 | } | |
| 590 | |||
| 591 | 12 | gate_result_t gate_xtea_block_encrypt(gate_uint32_t* blocks, gate_size_t blocks_count, gate_uint32_t const key[4]) | |
| 592 | { | ||
| 593 |
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24 | while (blocks_count > 1) |
| 594 | { | ||
| 595 | 12 | xtea_encipher(XTEA_ROUNDS, blocks, key); | |
| 596 | 12 | blocks += 2; | |
| 597 | 12 | blocks_count -= 2; | |
| 598 | } | ||
| 599 | 12 | return GATE_RESULT_OK; | |
| 600 | } | ||
| 601 | 12 | gate_result_t gate_xtea_block_decrypt(gate_uint32_t* blocks, gate_size_t blocks_count, gate_uint32_t const key[4]) | |
| 602 | { | ||
| 603 |
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24 | while (blocks_count > 1) |
| 604 | { | ||
| 605 | 12 | xtea_decipher(XTEA_ROUNDS, blocks, key); | |
| 606 | 12 | blocks += 2; | |
| 607 | 12 | blocks_count -= 2; | |
| 608 | } | ||
| 609 | 12 | return GATE_RESULT_OK; | |
| 610 | } | ||
| 611 | |||
| 612 | 7 | gate_result_t gate_xtea_encrypt(unsigned char* data, gate_size_t data_length, unsigned char const key[16]) | |
| 613 | { | ||
| 614 | 7 | gate_size_t const cnt = data_length / 8; | |
| 615 | gate_size_t n; | ||
| 616 | gate_uint32_t tmp[2]; | ||
| 617 | gate_uint32_t k[4]; | ||
| 618 | |||
| 619 | 7 | k[0] = load_uint32(&key[0]); | |
| 620 | 7 | k[1] = load_uint32(&key[4]); | |
| 621 | 7 | k[2] = load_uint32(&key[8]); | |
| 622 | 7 | k[3] = load_uint32(&key[12]); | |
| 623 | |||
| 624 |
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7 | if (!data || ((data_length % 8) != 0)) |
| 625 | { | ||
| 626 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 627 | } | ||
| 628 |
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19 | for (n = 0; n != cnt; ++n) |
| 629 | { | ||
| 630 | 12 | tmp[0] = load_uint32(&data[n * 8]); | |
| 631 | 12 | tmp[1] = load_uint32(&data[n * 8 + 4]); | |
| 632 | 12 | gate_xtea_block_encrypt(tmp, 2, k); | |
| 633 | 12 | save_uint32(tmp[0], &data[n * 8]); | |
| 634 | 12 | save_uint32(tmp[1], &data[n * 8 + 4]); | |
| 635 | } | ||
| 636 | 7 | return GATE_RESULT_OK; | |
| 637 | } | ||
| 638 | 7 | gate_result_t gate_xtea_decrypt(unsigned char* data, gate_size_t data_length, unsigned char const key[16]) | |
| 639 | { | ||
| 640 | 7 | gate_size_t const cnt = data_length / 8; | |
| 641 | gate_size_t n; | ||
| 642 | gate_uint32_t tmp[2]; | ||
| 643 | gate_uint32_t k[4]; | ||
| 644 | |||
| 645 | 7 | k[0] = load_uint32(&key[0]); | |
| 646 | 7 | k[1] = load_uint32(&key[4]); | |
| 647 | 7 | k[2] = load_uint32(&key[8]); | |
| 648 | 7 | k[3] = load_uint32(&key[12]); | |
| 649 | |||
| 650 |
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7 | if (!data || ((data_length % 8) != 0)) |
| 651 | { | ||
| 652 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 653 | } | ||
| 654 |
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19 | for (n = 0; n != cnt; ++n) |
| 655 | { | ||
| 656 | 12 | tmp[0] = load_uint32(&data[n * 8]); | |
| 657 | 12 | tmp[1] = load_uint32(&data[n * 8 + 4]); | |
| 658 | 12 | gate_xtea_block_decrypt(tmp, 2, k); | |
| 659 | 12 | save_uint32(tmp[0], &data[n * 8]); | |
| 660 | 12 | save_uint32(tmp[1], &data[n * 8 + 4]); | |
| 661 | } | ||
| 662 | 7 | return GATE_RESULT_OK; | |
| 663 | } | ||
| 664 | |||
| 665 | 1 | gate_result_t gate_xtea_encrypt_stream(gate_stream_t* instream, gate_stream_t* outstream, unsigned char const key[16]) | |
| 666 | { | ||
| 667 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 668 | char buffer[8]; | ||
| 669 | gate_size_t buffer_used; | ||
| 670 |
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7 | while (GATE_SUCCEEDED(result)) |
| 671 | { | ||
| 672 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 673 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 674 |
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7 | if (buffer_used == 0) |
| 675 | { | ||
| 676 | /* end of stream reached */ | ||
| 677 | 1 | break; | |
| 678 | } | ||
| 679 |
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6 | if (buffer_used < sizeof(buffer)) |
| 680 | { | ||
| 681 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 682 | } | ||
| 683 | 6 | result = gate_xtea_encrypt((unsigned char*)buffer, sizeof(buffer), key); | |
| 684 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 685 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 686 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 687 | } | ||
| 688 | 1 | return result; | |
| 689 | } | ||
| 690 | |||
| 691 | 1 | gate_result_t gate_xtea_decrypt_stream(gate_stream_t* instream, gate_stream_t* outstream, unsigned char const key[16]) | |
| 692 | { | ||
| 693 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 694 | char buffer[8]; | ||
| 695 | gate_size_t buffer_used; | ||
| 696 |
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7 | while (GATE_SUCCEEDED(result)) |
| 697 | { | ||
| 698 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 699 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 700 |
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7 | if (buffer_used == 0) |
| 701 | { | ||
| 702 | /* end of stream reached */ | ||
| 703 | 1 | break; | |
| 704 | } | ||
| 705 |
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6 | if (buffer_used < sizeof(buffer)) |
| 706 | { | ||
| 707 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 708 | } | ||
| 709 | 6 | result = gate_xtea_decrypt((unsigned char*)buffer, sizeof(buffer), key); | |
| 710 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 711 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 712 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 713 | } | ||
| 714 | 1 | return result; | |
| 715 | } | ||
| 716 | |||
| 717 | |||
| 718 | |||
| 719 | |||
| 720 | /* based on https://en.wikipedia.org/wiki/XXTEA */ | ||
| 721 | #define MX (((z >> 5 ^ y << 2) + (y >> 3 ^ z << 4)) ^ ((sum ^ y) + (key[(p & 3) ^ e] ^ z))) | ||
| 722 | |||
| 723 | 12 | static void btea_encrypt(gate_uint32_t* v, gate_size_t n, gate_uint32_t const key[4]) | |
| 724 | { | ||
| 725 | gate_uint32_t y, z, sum; | ||
| 726 | gate_size_t p, rounds, e; | ||
| 727 | 12 | rounds = 6 + 52 / n; | |
| 728 | 12 | sum = 0; | |
| 729 | 12 | z = v[n - 1]; | |
| 730 | do | ||
| 731 | { | ||
| 732 | 384 | sum += XTEA_DELTA; | |
| 733 | 384 | e = (sum >> 2) & 3; | |
| 734 |
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768 | for (p = 0; p < n - 1; p++) |
| 735 | { | ||
| 736 | 384 | y = v[p + 1]; | |
| 737 | 384 | z = v[p] += MX; | |
| 738 | } | ||
| 739 | 384 | y = v[0]; | |
| 740 | 384 | z = v[n - 1] += MX; | |
| 741 |
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384 | } while (--rounds); |
| 742 | 12 | } | |
| 743 | 12 | static void btea_decrypt(gate_uint32_t* v, gate_size_t n, gate_uint32_t const key[4]) | |
| 744 | { | ||
| 745 | gate_uint32_t y, z, sum; | ||
| 746 | gate_size_t p, rounds, e; | ||
| 747 | { | ||
| 748 | 12 | rounds = 6 + 52 / n; | |
| 749 | 12 | sum = (gate_uint32_t)rounds * (gate_uint32_t)XTEA_DELTA; | |
| 750 | 12 | y = v[0]; | |
| 751 | do | ||
| 752 | { | ||
| 753 | 384 | e = (sum >> 2) & 3; | |
| 754 |
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768 | for (p = n - 1; p > 0; p--) |
| 755 | { | ||
| 756 | 384 | z = v[p - 1]; | |
| 757 | 384 | y = v[p] -= MX; | |
| 758 | } | ||
| 759 | 384 | z = v[n - 1]; | |
| 760 | 384 | y = v[0] -= MX; | |
| 761 | 384 | sum -= XTEA_DELTA; | |
| 762 |
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384 | } while (--rounds); |
| 763 | } | ||
| 764 | |||
| 765 | 12 | } | |
| 766 | |||
| 767 | |||
| 768 | 12 | gate_result_t gate_xxtea_block_encrypt(gate_uint32_t* blocks, gate_size_t blocks_count, gate_uint32_t const key[4]) | |
| 769 | { | ||
| 770 |
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12 | if (!blocks || (blocks_count < 2)) |
| 771 | { | ||
| 772 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 773 | } | ||
| 774 | 12 | btea_encrypt(blocks, blocks_count, key); | |
| 775 | 12 | return GATE_RESULT_OK; | |
| 776 | } | ||
| 777 | 12 | gate_result_t gate_xxtea_block_decrypt(gate_uint32_t* blocks, gate_size_t blocks_count, gate_uint32_t const key[4]) | |
| 778 | { | ||
| 779 |
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12 | if (!blocks || (blocks_count < 2)) |
| 780 | { | ||
| 781 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 782 | } | ||
| 783 | 12 | btea_decrypt(blocks, blocks_count, key); | |
| 784 | 12 | return GATE_RESULT_OK; | |
| 785 | } | ||
| 786 | 7 | gate_result_t gate_xxtea_encrypt(unsigned char* data, gate_size_t data_length, unsigned char const key[16]) | |
| 787 | { | ||
| 788 | 7 | gate_size_t const cnt = data_length / 8; | |
| 789 | gate_size_t n; | ||
| 790 | gate_uint32_t tmp[2]; | ||
| 791 | gate_uint32_t k[4]; | ||
| 792 | |||
| 793 | 7 | k[0] = load_uint32(&key[0]); | |
| 794 | 7 | k[1] = load_uint32(&key[4]); | |
| 795 | 7 | k[2] = load_uint32(&key[8]); | |
| 796 | 7 | k[3] = load_uint32(&key[12]); | |
| 797 | |||
| 798 |
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7 | if (!data || ((data_length % 8) != 0)) |
| 799 | { | ||
| 800 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 801 | } | ||
| 802 |
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19 | for (n = 0; n != cnt; ++n) |
| 803 | { | ||
| 804 | 12 | tmp[0] = load_uint32(&data[n * 8]); | |
| 805 | 12 | tmp[1] = load_uint32(&data[n * 8 + 4]); | |
| 806 | 12 | gate_xxtea_block_encrypt(tmp, 2, k); | |
| 807 | 12 | save_uint32(tmp[0], &data[n * 8]); | |
| 808 | 12 | save_uint32(tmp[1], &data[n * 8 + 4]); | |
| 809 | } | ||
| 810 | 7 | return GATE_RESULT_OK; | |
| 811 | } | ||
| 812 | 7 | gate_result_t gate_xxtea_decrypt(unsigned char* data, gate_size_t data_length, unsigned char const key[16]) | |
| 813 | { | ||
| 814 | 7 | gate_size_t const cnt = data_length / 8; | |
| 815 | gate_size_t n; | ||
| 816 | gate_uint32_t tmp[2]; | ||
| 817 | gate_uint32_t k[4]; | ||
| 818 | |||
| 819 | 7 | k[0] = load_uint32(&key[0]); | |
| 820 | 7 | k[1] = load_uint32(&key[4]); | |
| 821 | 7 | k[2] = load_uint32(&key[8]); | |
| 822 | 7 | k[3] = load_uint32(&key[12]); | |
| 823 | |||
| 824 |
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7 | if (!data || ((data_length % 8) != 0)) |
| 825 | { | ||
| 826 | ✗ | return GATE_RESULT_INVALIDINPUT; | |
| 827 | } | ||
| 828 |
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19 | for (n = 0; n != cnt; ++n) |
| 829 | { | ||
| 830 | 12 | tmp[0] = load_uint32(&data[n * 8]); | |
| 831 | 12 | tmp[1] = load_uint32(&data[n * 8 + 4]); | |
| 832 | 12 | gate_xxtea_block_decrypt(tmp, 2, k); | |
| 833 | 12 | save_uint32(tmp[0], &data[n * 8]); | |
| 834 | 12 | save_uint32(tmp[1], &data[n * 8 + 4]); | |
| 835 | } | ||
| 836 | 7 | return GATE_RESULT_OK; | |
| 837 | } | ||
| 838 | |||
| 839 | 1 | gate_result_t gate_xxtea_encrypt_stream(gate_stream_t* instream, gate_stream_t* outstream, unsigned char const key[16]) | |
| 840 | { | ||
| 841 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 842 | char buffer[8]; | ||
| 843 | gate_size_t buffer_used; | ||
| 844 |
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7 | while (GATE_SUCCEEDED(result)) |
| 845 | { | ||
| 846 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 847 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 848 |
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7 | if (buffer_used == 0) |
| 849 | { | ||
| 850 | /* end of stream reached */ | ||
| 851 | 1 | break; | |
| 852 | } | ||
| 853 |
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6 | if (buffer_used < sizeof(buffer)) |
| 854 | { | ||
| 855 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 856 | } | ||
| 857 | 6 | result = gate_xxtea_encrypt((unsigned char*)buffer, sizeof(buffer), key); | |
| 858 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 859 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 860 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 861 | } | ||
| 862 | 1 | return result; | |
| 863 | } | ||
| 864 | |||
| 865 | 1 | gate_result_t gate_xxtea_decrypt_stream(gate_stream_t* instream, gate_stream_t* outstream, unsigned char const key[16]) | |
| 866 | { | ||
| 867 | 1 | gate_result_t result = GATE_RESULT_OK; | |
| 868 | char buffer[8]; | ||
| 869 | gate_size_t buffer_used; | ||
| 870 |
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7 | while (GATE_SUCCEEDED(result)) |
| 871 | { | ||
| 872 | 7 | result = gate_stream_read_block(instream, buffer, sizeof(buffer), &buffer_used); | |
| 873 |
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7 | GATE_BREAK_IF_FAILED(result); |
| 874 |
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7 | if (buffer_used == 0) |
| 875 | { | ||
| 876 | /* end of stream reached */ | ||
| 877 | 1 | break; | |
| 878 | } | ||
| 879 |
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6 | if (buffer_used < sizeof(buffer)) |
| 880 | { | ||
| 881 | ✗ | gate_mem_clear(&buffer[buffer_used], sizeof(buffer) - buffer_used); | |
| 882 | } | ||
| 883 | 6 | result = gate_xxtea_decrypt((unsigned char*)buffer, sizeof(buffer), key); | |
| 884 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 885 | 6 | result = gate_stream_write_block(outstream, buffer, sizeof(buffer), &buffer_used); | |
| 886 |
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6 | GATE_BREAK_IF_FAILED(result); |
| 887 | } | ||
| 888 | 1 | return result; | |
| 889 | } | ||
| 890 |