objective-c的blowfish實現程式碼，沒有找到。於是使用c語言的程式碼來實現blowfish加密解密演算法。另外附上其他兩個版本的blowfish。

一：C版

1、blowfish.c

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <memory.h> #include "blowfish.h" static unsigned char Byte(unsigned int ui); static unsigned int F(unsigned int auiS[][MAX_SBLOCK_YSIZE], unsigned int ui); static void BytesToBlock(unsigned char *buf, SBlock *b); static void BlockToBytes(SBlock *b, unsigned char *buf); static void EncryptBlock(Blowfish *blowfish, SBlock *block); static void DecryptBlock(Blowfish *blowfish, SBlock *block); /*Encrypt/Decrypt from Input Buffer to Output Buffer*/ static int EncryptByte(Blowfish *blowfish, const unsigned char *bin, size_t n, unsigned char *bout, int iMode); static int DecryptByte(Blowfish *blowfish, const unsigned char *bin, size_t n, unsigned char *bout, int iMode); static void Char2Hex(unsigned char ch, char *szHex); static void Hex2Char(char *szHex, unsigned char *rch); /****************************************************************************************/ /*Initialization with a fixed string which consists of the hexadecimal digits of PI (less the initial 3) P-array, 18 32-bit subkeys*/ const unsigned int scm_auiInitP[MAX_PBLOCK_SIZE] = { 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b }; /*Four 32-bit S-boxes with 256 entries each*/ const unsigned int scm_auiInitS[MAX_SBLOCK_XSIZE][MAX_SBLOCK_YSIZE] = { /*0*/ {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}, /*1*/ {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}, /*2*/ {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}, /*3*/ {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} }; /****************************************************************************************/ /*Extract low order byte*/ static unsigned char Byte(unsigned int ui) { return (unsigned char)(ui & 0xff); } /*Function F*/ static unsigned int F(unsigned int auiS[][MAX_SBLOCK_YSIZE], unsigned int ui) { return ((auiS[0][Byte(ui>>24)] + auiS[1][Byte(ui>>16)]) ^ auiS[2][Byte(ui>>8)]) + auiS[3][Byte(ui)]; } /*Semi-Portable Byte Shuffling*/ static void BytesToBlock(unsigned char *buf, SBlock *b) { unsigned int y; unsigned char *p = buf; /*Left*/ b->m_uil = 0; y = *p++; y <<= 24; b->m_uil |= y; y = *p++; y <<= 16; b->m_uil |= y; y = *p++; y <<= 8; b->m_uil |= y; y = *p++; b->m_uil |= y; /*Right*/ b->m_uir = 0; y = *p++; y <<= 24; b->m_uir |= y; y = *p++; y <<= 16; b->m_uir |= y; y = *p++; y <<= 8; b->m_uir |= y; y = *p++; b->m_uir |= y; } static void BlockToBytes(SBlock *b, unsigned char *buf) { unsigned int y; unsigned char *p = buf; /*Right*/ y = b->m_uir; *--p = Byte(y); y = b->m_uir >> 8; *--p = Byte(y); y = b->m_uir >> 16; *--p = Byte(y); y = b->m_uir >> 24; *--p = Byte(y); /*Left*/ y = b->m_uil; *--p = Byte(y); y = b->m_uil >> 8; *--p = Byte(y); y = b->m_uil >> 16; *--p = Byte(y); y = b->m_uil >> 24; *--p = Byte(y); } /****************************************************************************************/ /*Sixteen Round Encipher of Block*/ static void EncryptBlock(Blowfish *blowfish, SBlock *block) { unsigned int uiLeft = block->m_uil; unsigned int uiRight = block->m_uir; uiLeft ^= blowfish->m_auiP[0]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[1]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[2]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[3]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[4]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[5]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[6]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[7]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[8]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[9]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[10]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[11]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[12]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[13]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[14]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[15]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[16]; uiRight ^= blowfish->m_auiP[17]; block->m_uil = uiRight; block->m_uir = uiLeft; } /*Sixteen Round Decipher of SBlock*/ static void DecryptBlock(Blowfish *blowfish, SBlock *block) { unsigned int uiLeft = block->m_uil; unsigned int uiRight = block->m_uir; uiLeft ^= blowfish->m_auiP[17]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[16]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[15]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[14]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[13]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[12]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[11]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[10]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[9]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[8]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[7]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[6]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[5]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[4]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[3]; uiRight ^= F(blowfish->m_auiS, uiLeft)^blowfish->m_auiP[2]; uiLeft ^= F(blowfish->m_auiS, uiRight)^blowfish->m_auiP[1]; uiRight ^= blowfish->m_auiP[0]; block->m_uil = uiRight; block->m_uir = uiLeft; } /*Encrypt/Decrypt from Input Buffer to Output Buffer*/ static int EncryptByte(Blowfish *blowfish, const unsigned char *bin, size_t n, unsigned char *bout, int iMode) { SBlock work; unsigned char *in; unsigned char *out; /*Check the buffer's length - should be > 0 and multiple of 8*/ if((n<=0) || (n%8!=0)) return -1; in = bin; out = bout; if(iMode == CBC) /*CBC mode, using the Chain*/ { SBlock chain; memcpy(&chain, &blowfish->m_oChain, sizeof(SBlock)); for(; n >= 8; n -= 8, in += 8) { BytesToBlock(in, &work); work.m_uil ^= chain.m_uil; work.m_uir ^= chain.m_uir; EncryptBlock(blowfish, &work); chain = work; BlockToBytes(&work, out+=8); } } else if(iMode == CFB) /*CFB mode, using the Chain*/ { SBlock chain; memcpy(&chain, &blowfish->m_oChain, sizeof(SBlock)); for(; n >= 8; n -= 8, in += 8) { EncryptBlock(blowfish, &chain); BytesToBlock(in, &work); work.m_uil ^= chain.m_uil; work.m_uir ^= chain.m_uir; chain = work; BlockToBytes(&work, out+=8); } } else /*ECB mode, not using the Chain*/ { for(; n >= 8; n -= 8, in += 8) { BytesToBlock(in, &work); EncryptBlock(blowfish, &work); BlockToBytes(&work, out+=8); } } return 1; } static int DecryptByte(Blowfish *blowfish, const unsigned char *bin, size_t n, unsigned char *bout, int iMode) { SBlock work; unsigned char *in; unsigned char *out; /*Check the buffer's length - should be > 0 and multiple of 8*/ if((n<=0) || (n%8!=0)) return -1; in = bin; out = bout; if(iMode == CBC) /*CBC mode, using the Chain*/ { SBlock crypt, chain; memcpy(&chain, &blowfish->m_oChain, sizeof(SBlock)); for(; n >= 8; n -= 8, in += 8) { BytesToBlock(in, &work); crypt = work; DecryptBlock(blowfish, &work); work.m_uil ^= chain.m_uil; work.m_uir ^= chain.m_uir; chain = crypt; BlockToBytes(&work, out+=8); } } else if(iMode == CFB) /*CFB mode, using the Chain, not using Decrypt()*/ { SBlock crypt, chain; memcpy(&chain, &blowfish->m_oChain, sizeof(SBlock)); for(; n >= 8; n -= 8, in += 8) { BytesToBlock(in, &work); EncryptBlock(blowfish, &chain); crypt = work; work.m_uil ^= chain.m_uil; work.m_uir ^= chain.m_uir; chain = crypt; BlockToBytes(&work, out+=8); } } else /*ECB mode, not using the Chain*/ { for(; n >= 8; n -= 8, in += 8) { BytesToBlock(in, &work); DecryptBlock(blowfish, &work); BlockToBytes(&work, out+=8); } } return 1; } /****************************************************************************************/ /*Function to convert unsigned char to string of length 2*/ static void Char2Hex(unsigned char ch, char *szHex) { int i; unsigned char byte[2]; byte[0] = ch/16; byte[1] = ch%16; for(i=0; i<2; i++) { if(byte[i] >= 0 && byte[i] <= 9) szHex[i] = '0' + byte[i]; else szHex[i] = 'A' + byte[i] - 10; } szHex[2] = 0; } /*Function to convert string of length 2 to unsigned char*/ static void Hex2Char(char *szHex, unsigned char *rch) { int i; for(i=0; i<2; i++) { if(*(szHex + i) >='0' && *(szHex + i) <= '9') *rch = (*rch << 4) + (*(szHex + i) - '0'); else if(*(szHex + i) >='A' && *(szHex + i) <= 'F') *rch = (*rch << 4) + (*(szHex + i) - 'A' + 10); else break; } } /*Function to convert string of unsigned chars to string of chars*/ void CharStr2HexStr(unsigned char *pucCharStr, int iSize, unsigned char *pszHexStr) { int i; char szHex[3]; pszHexStr[0] = 0; for(i=0; i<iSize; i++) { Char2Hex(pucCharStr[i], szHex); strcat(pszHexStr, szHex); } } /*Function to convert string of chars to string of unsigned chars*/ void HexStr2CharStr(unsigned char *pszHexStr, int iSize, unsigned char *pucCharStr) { int i; unsigned char ch; if (iSize%2 != 0) return; for(i=0; i<iSize/2; i++) { Hex2Char(pszHexStr+2*i, &ch); pucCharStr[i] = ch; } } /****************************************************************************************/ /*Constructor - Initialize the P and S boxes for a given Key*/ int BlowFishInit(Blowfish *blowfish, unsigned char *ucKey, size_t keysize) { unsigned int i, j, k, n; unsigned char aucLocalKey[MAX_KEY_SIZE]; const unsigned char *p = aucLocalKey; unsigned int x = 0; int iCount = 0; SBlock block = {0, 0}; //all-zero block if (keysize<1) return -1; /*Check the Key - the key length should be between 1 and 56 bytes*/ if(keysize<0 || keysize>MAX_KEY_SIZE) return -1; memcpy(aucLocalKey, ucKey, keysize); /*Reflexive Initialization of the Blowfish. Generating the Subkeys from the Key flood P and S boxes with PI*/ memcpy(blowfish->m_auiP, scm_auiInitP, sizeof(blowfish->m_auiP)); memcpy(blowfish->m_auiS, scm_auiInitS, sizeof(blowfish->m_auiS)); /*Load P boxes with key bytes Repeatedly cycle through the key bits until the entire P array has been XORed with key bits*/ for(i=0; i<MAX_PBLOCK_SIZE; i++) { x=0; for(n=4; n--; ) { /*int iVal = (int)(*p);*/ x <<= 8; x |= *(p++); iCount++; if(iCount == keysize) { /*All bytes used, so recycle bytes*/ iCount = 0; p = aucLocalKey; } } blowfish->m_auiP[i] ^= x; } /*Reflect P and S boxes through the evolving Blowfish*/ for(i=0; i<MAX_PBLOCK_SIZE; ) EncryptBlock(blowfish, &block), blowfish->m_auiP[i++] = block.m_uil, blowfish->m_auiP[i++] = block.m_uir; for(j=0; j<MAX_SBLOCK_XSIZE; j++) for(k=0; k<MAX_SBLOCK_YSIZE; ) EncryptBlock(blowfish, &block), blowfish->m_auiS[j][k++] = block.m_uil, blowfish->m_auiS[j][k++] = block.m_uir; return 1; } /*Encrypt from Input Buffer to Output Buffer Returns false if n is multiple of 8*/ int Encrypt(Blowfish *blowfish, const unsigned char* in, size_t siz_i, unsigned char* out, size_t siz_o, int iMode) { unsigned char *byte_in; unsigned char *byte_out; int nLen, nRet; if (siz_i%8 == 0) { nLen = siz_i; } else { nLen = siz_i + 8 - siz_i%8; } if (siz_o < nLen*2) return -1; byte_in = (unsigned char *)malloc(sizeof(unsigned char)*nLen+1); byte_out = (unsigned char *)malloc(sizeof(unsigned char)*nLen+1); memset(byte_in, 0x00, sizeof(unsigned char)*nLen+1); memset(byte_out, 0x00, sizeof(unsigned char)*nLen+1); memcpy(byte_in, in, siz_i); nRet = EncryptByte(blowfish, byte_in, nLen, byte_out, iMode); CharStr2HexStr(byte_out, nLen, out); free(byte_in); free(byte_out); return nRet; } /*Decrypt from Input Buffer to Output Buffer Returns false if n is multiple of 8*/ int Decrypt(Blowfish *blowfish, const unsigned char* in, size_t siz_i, unsigned char* out, size_t siz_o, int iMode) { unsigned char *byte_in; int nLen, nRet; if (siz_i%2 != 0) return -1; nLen = siz_i/2; if (siz_o < nLen) return -1; byte_in = (unsigned char *)malloc(sizeof(unsigned char)*nLen+1); memset(byte_in, 0x00, sizeof(unsigned char)*nLen+1); HexStr2CharStr(in, siz_i, byte_in); nRet = DecryptByte(blowfish, byte_in, nLen, out, iMode); free(byte_in); return nRet; }

2、blowfish.h

#ifndef __BLOWFISH_H__ #define __BLOWFISH_H__ #define ECB 0 /*default*/ #define CBC 1 #define CFB 2 #define MAX_KEY_SIZE 56 #define MAX_PBLOCK_SIZE 18 #define MAX_SBLOCK_XSIZE 4 #define MAX_SBLOCK_YSIZE 256 /*Block Structure*/ typedef struct{ unsigned int m_uil; /*Hi*/ unsigned int m_uir; /*Lo*/ }SBlock; typedef struct{ SBlock m_oChain; unsigned int m_auiP[MAX_PBLOCK_SIZE]; unsigned int m_auiS[MAX_SBLOCK_XSIZE][MAX_SBLOCK_YSIZE]; }Blowfish; /****************************************************************************************/ /*Constructor - Initialize the P and S boxes for a given Key*/ int BlowFishInit(Blowfish *blowfish, unsigned char* ucKey, size_t keysize); /*Encrypt/Decrypt from Input Buffer to Output Buffer*/ int Encrypt(Blowfish *blowfish, const unsigned char* in, size_t siz_i, unsigned char* out, size_t siz_o, int iMode); int Decrypt(Blowfish *blowfish, const unsigned char* in, size_t siz_i, unsigned char* out, size_t siz_o, int iMode); /****************************************************************************************/ void HexStr2CharStr(unsigned char *pszHexStr, int iSize, unsigned char *pucCharStr); void CharStr2HexStr(unsigned char *pucCharStr, int iSize,unsigned char *pszHexStr); #endif /*__BLOWFISH_H__*/

3、main.c
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <memory.h> #include "blowfish.h" void main() { //TESTING Blowfish //ecb test data (taken from the DES validation tests) char szData[34][2][17] = { {"0000000000000000", "0000000000000000"}, {"FFFFFFFFFFFFFFFF", "FFFFFFFFFFFFFFFF"}, {"3000000000000000", "1000000000000001"}, {"1111111111111111", "1111111111111111"}, {"0123456789ABCDEF", "1111111111111111"}, {"1111111111111111", "0123456789ABCDEF"}, {"0000000000000000", "0000000000000000"}, {"FEDCBA9876543210", "0123456789ABCDEF"}, {"7CA110454A1A6E57", "01A1D6D039776742"}, {"0131D9619DC1376E", "5CD54CA83DEF57DA"}, {"07A1133E4A0B2686", "0248D43806F67172"}, {"3849674C2602319E", "51454B582DDF440A"}, {"04B915BA43FEB5B6", "42FD443059577FA2"}, {"0113B970FD34F2CE", "059B5E0851CF143A"}, {"0170F175468FB5E6", "0756D8E0774761D2"}, {"43297FAD38E373FE", "762514B829BF486A"}, {"07A7137045DA2A16", "3BDD119049372802"}, {"04689104C2FD3B2F", "26955F6835AF609A"}, {"37D06BB516CB7546", "164D5E404F275232"}, {"1F08260D1AC2465E", "6B056E18759F5CCA"}, {"584023641ABA6176", "004BD6EF09176062"}, {"025816164629B007", "480D39006EE762F2"}, {"49793EBC79B3258F", "437540C8698F3CFA"}, {"4FB05E1515AB73A7", "072D43A077075292"}, {"49E95D6D4CA229BF", "02FE55778117F12A"}, {"018310DC409B26D6", "1D9D5C5018F728C2"}, {"1C587F1C13924FEF", "305532286D6F295A"}, {"0101010101010101", "0123456789ABCDEF"}, {"1F1F1F1F0E0E0E0E", "0123456789ABCDEF"}, {"E0FEE0FEF1FEF1FE", "0123456789ABCDEF"}, {"0000000000000000", "FFFFFFFFFFFFFFFF"}, {"FFFFFFFFFFFFFFFF", "0000000000000000"}, {"0123456789ABCDEF", "0000000000000000"}, {"FEDCBA9876543210", "FFFFFFFFFFFFFFFF"} }; unsigned char aucKey[17]; unsigned char aucPlainText[64]; unsigned char aucCipherText[64]; int i; for(i=0; i<34; i++) { Blowfish oBlowFish; aucKey[16] = 0; memset(aucPlainText, 0x00, sizeof(aucPlainText)); memset(aucCipherText, 0x00, sizeof(aucCipherText)); strcpy(aucKey, szData[i][0]); strcpy(aucPlainText, szData[i][1]); BlowFishInit(&oBlowFish, aucKey, 16); memset(aucCipherText, 0x00, sizeof(aucCipherText)); Encrypt(&oBlowFish, aucPlainText, strlen(aucPlainText), aucCipherText, sizeof(aucCipherText), ECB); memset(aucPlainText, 0x00, sizeof(aucPlainText)); Decrypt(&oBlowFish, aucCipherText, strlen(aucCipherText), aucPlainText, sizeof(aucPlainText), ECB); printf("[%s][%s][%s]/n", aucCipherText, aucPlainText, aucPlainText); } getchar(); }


二：C++版

1、blowFish.cpp

//////////////////////////////////////////////////////////////////////////// /// // BlowFish.cpp // // Implementation of Bruce Schneier's BLOWFISH algorithm from "Applied // Cryptography", Second Edition. #include <cstring> #include <exception> #include "blowfish.h" //Initialization with a fixed string which consists of the hexadecimal digits of PI (less the initial 3) //P-array, 18 32-bit subkeys const unsigned int CBlowFish::scm_auiInitP[18] = { 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b }; //Four 32-bit S-boxes with 256 entries each const unsigned int CBlowFish::scm_auiInitS[4][256] = { //0 { 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 }, //1 { 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 }, //2 { 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 }, //3 { 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 } }; //Constructor - Initialize the P and S boxes for a given Key CBlowFish::CBlowFish(unsigned char* ucKey, size_t keysize, const SBlock& roChain) : m_oChain0(roChain), m_oChain(roChain) { if (keysize < 1) return; // throw exception("Incorrect key length"); //Check the Key - the key length should be between 1 and 56 bytes if (keysize > 56) keysize = 56; unsigned char aucLocalKey[56]; unsigned int i, j; memcpy(aucLocalKey, ucKey, keysize); //Reflexive Initialization of the Blowfish. //Generating the Subkeys from the Key flood P and S boxes with PI memcpy(m_auiP, scm_auiInitP, sizeof m_auiP); memcpy(m_auiS, scm_auiInitS, sizeof m_auiS); //Load P boxes with key bytes const unsigned char* p = aucLocalKey; unsigned int x = 0; //Repeatedly cycle through the key bits until the entire P array has been XORed with key bits int iCount = 0; for (i = 0; i < 18; i++) { x = 0; for (int n = 4; n--;) { int iVal = (int) (*p); x <<= 8; x |= *(p++); iCount++; if (iCount == keysize) { //All bytes used, so recycle bytes iCount = 0; p = aucLocalKey; } } m_auiP[i] ^= x; } //Reflect P and S boxes through the evolving Blowfish SBlock block(0UL, 0UL); //all-zero block for (i = 0; i < 18;) Encrypt(block), m_auiP[i++] = block.m_uil, m_auiP[i++] = block.m_uir; for (j = 0; j < 4; j++) for (int k = 0; k < 256;) Encrypt(block), m_auiS[j][k++] = block.m_uil, m_auiS[j][k++] = block.m_uir; } //Sixteen Round Encipher of Block void CBlowFish::Encrypt(SBlock& block) { unsigned int uiLeft = block.m_uil; unsigned int uiRight = block.m_uir; uiLeft ^= m_auiP[0]; uiRight ^= F(uiLeft) ^ m_auiP[1]; uiLeft ^= F(uiRight) ^ m_auiP[2]; uiRight ^= F(uiLeft) ^ m_auiP[3]; uiLeft ^= F(uiRight) ^ m_auiP[4]; uiRight ^= F(uiLeft) ^ m_auiP[5]; uiLeft ^= F(uiRight) ^ m_auiP[6]; uiRight ^= F(uiLeft) ^ m_auiP[7]; uiLeft ^= F(uiRight) ^ m_auiP[8]; uiRight ^= F(uiLeft) ^ m_auiP[9]; uiLeft ^= F(uiRight) ^ m_auiP[10]; uiRight ^= F(uiLeft) ^ m_auiP[11]; uiLeft ^= F(uiRight) ^ m_auiP[12]; uiRight ^= F(uiLeft) ^ m_auiP[13]; uiLeft ^= F(uiRight) ^ m_auiP[14]; uiRight ^= F(uiLeft) ^ m_auiP[15]; uiLeft ^= F(uiRight) ^ m_auiP[16]; uiRight ^= m_auiP[17]; block.m_uil = uiRight; block.m_uir = uiLeft; } //Sixteen Round Decipher of SBlock void CBlowFish::Decrypt(SBlock& block) { unsigned int uiLeft = block.m_uil; unsigned int uiRight = block.m_uir; uiLeft ^= m_auiP[17]; uiRight ^= F(uiLeft) ^ m_auiP[16]; uiLeft ^= F(uiRight) ^ m_auiP[15]; uiRight ^= F(uiLeft) ^ m_auiP[14]; uiLeft ^= F(uiRight) ^ m_auiP[13]; uiRight ^= F(uiLeft) ^ m_auiP[12]; uiLeft ^= F(uiRight) ^ m_auiP[11]; uiRight ^= F(uiLeft) ^ m_auiP[10]; uiLeft ^= F(uiRight) ^ m_auiP[9]; uiRight ^= F(uiLeft) ^ m_auiP[8]; uiLeft ^= F(uiRight) ^ m_auiP[7]; uiRight ^= F(uiLeft) ^ m_auiP[6]; uiLeft ^= F(uiRight) ^ m_auiP[5]; uiRight ^= F(uiLeft) ^ m_auiP[4]; uiLeft ^= F(uiRight) ^ m_auiP[3]; uiRight ^= F(uiLeft) ^ m_auiP[2]; uiLeft ^= F(uiRight) ^ m_auiP[1]; uiRight ^= m_auiP[0]; block.m_uil = uiRight; block.m_uir = uiLeft; } //Semi-Portable Byte Shuffling inline void BytesToBlock(unsigned char const* p, SBlock& b) { unsigned int y; //Left b.m_uil = 0; y = *p++; y <<= 24; b.m_uil |= y; y = *p++; y <<= 16; b.m_uil |= y; y = *p++; y <<= 8; b.m_uil |= y; y = *p++; b.m_uil |= y; //Right b.m_uir = 0; y = *p++; y <<= 24; b.m_uir |= y; y = *p++; y <<= 16; b.m_uir |= y; y = *p++; y <<= 8; b.m_uir |= y; y = *p++; b.m_uir |= y; } inline void BlockToBytes(SBlock const& b, unsigned char* p) { unsigned int y; //Right y = b.m_uir; *--p = Byte(y); y = b.m_uir >> 8; *--p = Byte(y); y = b.m_uir >> 16; *--p = Byte(y); y = b.m_uir >> 24; *--p = Byte(y); //Left y = b.m_uil; *--p = Byte(y); y = b.m_uil >> 8; *--p = Byte(y); y = b.m_uil >> 16; *--p = Byte(y); y = b.m_uil >> 24; *--p = Byte(y); } //Encrypt Buffer in Place //Returns false if n is multiple of 8 void CBlowFish::Encrypt(unsigned char* buf, size_t n, int iMode) { //Check the buffer's length - should be > 0 and multiple of 8 if ((n == 0) || (n % 8 != 0)) return; // throw exception("Incorrect buffer length"); SBlock work; if (iMode == CBC) //CBC mode, using the Chain { SBlock chain(m_oChain); for (; n >= 8; n -= 8) { BytesToBlock(buf, work); work ^= chain; Encrypt(work); chain = work; BlockToBytes(work, buf += 8); } } else if (iMode == CFB) //CFB mode, using the Chain { SBlock chain(m_oChain); for (; n >= 8; n -= 8) { Encrypt(chain); BytesToBlock(buf, work); work ^= chain; chain = work; BlockToBytes(work, buf += 8); } } else //ECB mode, not using the Chain { for (; n >= 8; n -= 8) { BytesToBlock(buf, work); Encrypt(work); BlockToBytes(work, buf += 8); } } } //Decrypt Buffer in Place //Returns false if n is multiple of 8 void CBlowFish::Decrypt(unsigned char* buf, size_t n, int iMode) { //Check the buffer's length - should be > 0 and multiple of 8 if ((n == 0) || (n % 8 != 0)) return; // throw exception("Incorrect buffer length"); SBlock work; if (iMode == CBC) //CBC mode, using the Chain { SBlock crypt, chain(m_oChain); for (; n >= 8; n -= 8) { BytesToBlock(buf, work); crypt = work; Decrypt(work); work ^= chain; chain = crypt; BlockToBytes(work, buf += 8); } } else if (iMode == CFB) //CFB mode, using the Chain, not using Decrypt() { SBlock crypt, chain(m_oChain); for (; n >= 8; n -= 8) { BytesToBlock(buf, work); Encrypt(chain); crypt = work; work ^= chain; chain = crypt; BlockToBytes(work, buf += 8); } } else //ECB mode, not using the Chain { for (; n >= 8; n -= 8) { BytesToBlock(buf, work); Decrypt(work); BlockToBytes(work, buf += 8); } } } //Encrypt from Input Buffer to Output Buffer //Returns false if n is multiple of 8 void CBlowFish::Encrypt(const unsigned char* in, unsigned char* out, size_t n, int iMode) { //Check the buffer's length - should be > 0 and multiple of 8 if ((n == 0) || (n % 8 != 0)) return; // throw exception("Incorrect buffer length"); SBlock work; if (iMode == CBC) //CBC mode, using the Chain { SBlock chain(m_oChain); for (; n >= 8; n -= 8, in += 8) { BytesToBlock(in, work); work ^= chain; Encrypt(work); chain = work; BlockToBytes(work, out += 8); } } else if (iMode == CFB) //CFB mode, using the Chain { SBlock chain(m_oChain); for (; n >= 8; n -= 8, in += 8) { Encrypt(chain); BytesToBlock(in, work); work ^= chain; chain = work; BlockToBytes(work, out += 8); } } else //ECB mode, not using the Chain { for (; n >= 8; n -= 8, in += 8) { BytesToBlock(in, work); Encrypt(work); BlockToBytes(work, out += 8); } } } //Decrypt from Input Buffer to Output Buffer //Returns false if n is multiple of 8 void CBlowFish::Decrypt(const unsigned char* in, unsigned char* out, size_t n, int iMode) { //Check the buffer's length - should be > 0 and multiple of 8 if ((n == 0) || (n % 8 != 0)) return; // throw exception("Incorrect buffer length"); SBlock work; if (iMode == CBC) //CBC mode, using the Chain { SBlock crypt, chain(m_oChain); for (; n >= 8; n -= 8, in += 8) { BytesToBlock(in, work); crypt = work; Decrypt(work); work ^= chain; chain = crypt; BlockToBytes(work, out += 8); } } else if (iMode == CFB) //CFB mode, using the Chain, not using Decrypt() { SBlock crypt, chain(m_oChain); for (; n >= 8; n -= 8, in += 8) { BytesToBlock(in, work); Encrypt(chain); crypt = work; work ^= chain; chain = crypt; BlockToBytes(work, out += 8); } } else //ECB mode, not using the Chain { for (; n >= 8; n -= 8, in += 8) { BytesToBlock(in, work); Decrypt(work); BlockToBytes(work, out += 8); } } }

2、blowfish.h

/* Blowfish.h Header File BLOWFISH ENCRYPTION ALGORITHM Encryption and Decryption of Byte Strings using the Blowfish Encryption Algorithm. Blowfish is a block cipher that encrypts data in 8-byte blocks. The algorithm consists of two parts: a key-expansion part and a data-ancryption part. Key expansion converts a variable key of at least 1 and at most 56 bytes into several subkey arrays totaling 4168 bytes. Blowfish has 16 rounds. Each round consists of a key-dependent permutation, and a key and data-dependent substitution. All operations are XORs and additions on 32-bit words. The only additional operations are four indexed array data lookups per round. Blowfish uses a large number of subkeys. These keys must be precomputed before any data encryption or decryption. The P-array consists of 18 32-bit subkeys: P0, P1,...,P17. There are also four 32-bit S-boxes with 256 entries each: S0,0, S0,1,...,S0,255; S1,0, S1,1,...,S1,255; S2,0, S2,1,...,S2,255; S3,0, S3,1,...,S3,255; The Electronic Code Book (ECB), Cipher Block Chaining (CBC) and Cipher Feedback modes are used: In ECB mode if the same block is encrypted twice with the same key, the resulting ciphertext blocks are the same. In CBC Mode a ciphertext block is obtained by first xoring the plaintext block with the previous ciphertext block, and encrypting the resulting value. In CFB mode a ciphertext block is obtained by encrypting the previous ciphertext block and xoring the resulting value with the plaintext The previous ciphertext block is usually stored in an Initialization Vector (IV). An Initialization Vector of zero is commonly used for the first block, though other arrangements are also in use. */ #ifndef __BLOWFISH_H__ #define __BLOWFISH_H__ /*Block Structure*/ struct SBlock { unsigned int m_uil, m_uir; /*Constructors*/ SBlock(unsigned int l = 0, unsigned int r = 0) : m_uil(l), m_uir(r) { } /*Copy Constructor*/ SBlock(const SBlock& roBlock) : m_uil(roBlock.m_uil), m_uir(roBlock.m_uir) { } /*過載SBlock^=SBlock*/ SBlock& operator^=(const SBlock& b) { m_uil ^= b.m_uil; m_uir ^= b.m_uir; return *this; } }; class CBlowFish { public: enum { ECB = 0, CBC = 1, CFB = 2 }; //Constructor - Initialize the P and S boxes for a given Key CBlowFish(unsigned char* ucKey, size_t n, const SBlock& roChain = SBlock( 0UL, 0UL)); //Resetting the chaining block void ResetChain() { m_oChain = m_oChain0; } // Encrypt/Decrypt Buffer in Place void Encrypt(unsigned char* buf, size_t n, int iMode = ECB); void Decrypt(unsigned char* buf, size_t n, int iMode = ECB); // Encrypt/Decrypt from Input Buffer to Output Buffer void Encrypt(const unsigned char* in, unsigned char* out, size_t n, int iMode = ECB); void Decrypt(const unsigned char* in, unsigned char* out, size_t n, int iMode = ECB); //Private Functions private: unsigned int F(unsigned int ui); void Encrypt(SBlock&); void Decrypt(SBlock&); private: //The Initialization Vector, by default {0, 0} SBlock m_oChain0; SBlock m_oChain; unsigned int m_auiP[18]; unsigned int m_auiS[4][256]; static const unsigned int scm_auiInitP[18]; static const unsigned int scm_auiInitS[4][256]; }; //Extract low order byte inline unsigned char Byte(unsigned int ui) { return (unsigned char) (ui & 0xff); } //Function F inline unsigned int CBlowFish::F(unsigned int ui) { return ((m_auiS[0][Byte(ui >> 24)] + m_auiS[1][Byte(ui >> 16)]) ^ m_auiS[2][Byte(ui >> 8)]) + m_auiS[3][Byte(ui)]; } #endif // __BLOWFISH_H__

3、main.cpp

#include <iostream> #include <fstream> #include "blowfish.h" using namespace std; //Function to convert unsigned char to string of length 2 void Char2Hex(const unsigned char ch, char* szHex) { unsigned char byte[2]; byte[0] = ch / 16; byte[1] = ch % 16; for (int i = 0; i < 2; i++) { if (byte[i] >= 0 && byte[i] <= 9) szHex[i] = '0' + byte[i]; else szHex[i] = 'A' + byte[i] - 10; } szHex[2] = 0; } //Function to convert string of length 2 to unsigned char void Hex2Char(const char* szHex, unsigned char& rch) { rch = 0; for (int i = 0; i < 2; i++) { if (*(szHex + i) >= '0' && *(szHex + i) <= '9') rch = (rch << 4) + (*(szHex + i) - '0'); else if (*(szHex + i) >= 'A' && *(szHex + i) <= 'F') rch = (rch << 4) + (*(szHex + i) - 'A' + 10); else break; } } //Function to convert string of unsigned chars to string of chars void CharStr2HexStr(const unsigned char* pucCharStr, char* pszHexStr, int iSize) { int i; char szHex[3]; pszHexStr[0] = 0; for (i = 0; i < iSize; i++) { Char2Hex(pucCharStr[i], szHex); strcat(pszHexStr, szHex); } } //Function to convert string of chars to string of unsigned chars void HexStr2CharStr(const char* pszHexStr, unsigned char* pucCharStr, int iSize) { int i; unsigned char ch; for (i = 0; i < iSize; i++) { Hex2Char(pszHexStr + 2* i , ch); pucCharStr[i] = ch; } } int main() { //TESTING Blowfish //ecb test data (taken from the DES validation tests) char szData[34][2][17] = { { "0000000000000000", "0000000000000000" }, { "FFFFFFFFFFFFFFFF", "FFFFFFFFFFFFFFFF" }, { "3000000000000000", "1000000000000001" }, { "1111111111111111", "1111111111111111" }, { "0123456789ABCDEF", "1111111111111111" }, { "1111111111111111", "0123456789ABCDEF" }, { "0000000000000000", "0000000000000000" }, { "FEDCBA9876543210", "0123456789ABCDEF" }, { "7CA110454A1A6E57", "01A1D6D039776742" }, { "0131D9619DC1376E", "5CD54CA83DEF57DA" }, { "07A1133E4A0B2686", "0248D43806F67172" }, { "3849674C2602319E", "51454B582DDF440A" }, { "04B915BA43FEB5B6", "42FD443059577FA2" }, { "0113B970FD34F2CE", "059B5E0851CF143A" }, { "0170F175468FB5E6", "0756D8E0774761D2" }, { "43297FAD38E373FE", "762514B829BF486A" }, { "07A7137045DA2A16", "3BDD119049372802" }, { "04689104C2FD3B2F", "26955F6835AF609A" }, { "37D06BB516CB7546", "164D5E404F275232" }, { "1F08260D1AC2465E", "6B056E18759F5CCA" }, { "584023641ABA6176", "004BD6EF09176062" }, { "025816164629B007", "480D39006EE762F2" }, { "49793EBC79B3258F", "437540C8698F3CFA" }, { "4FB05E1515AB73A7", "072D43A077075292" }, { "49E95D6D4CA229BF", "02FE55778117F12A" }, { "018310DC409B26D6", "1D9D5C5018F728C2" }, { "1C587F1C13924FEF", "305532286D6F295A" }, { "0101010101010101", "0123456789ABCDEF" }, { "1F1F1F1F0E0E0E0E", "0123456789ABCDEF" }, { "E0FEE0FEF1FEF1FE", "0123456789ABCDEF" }, { "0000000000000000", "FFFFFFFFFFFFFFFF" }, { "FFFFFFFFFFFFFFFF", "0000000000000000" }, { "0123456789ABCDEF", "0000000000000000" }, { "FEDCBA9876543210", "FFFFFFFFFFFFFFFF" } }; unsigned char aucKey[8]; unsigned char aucPlainText[8]; char szHex[17]; szHex[16] = 0; unsigned char aucCipherText[8]; ofstream out("out.txt", ios::trunc); for (int i = 0; i < 34; i++) { strcpy(szHex, szData[i][0]); out << szHex << " "; HexStr2CharStr(szHex, aucKey, 8); //printf("%02X/n", aucKey[0]); strcpy(szHex, szData[i][1]); out << szHex << " "; HexStr2CharStr(szHex, aucPlainText, 8); CBlowFish oBlowFish(aucKey, 8); oBlowFish.Encrypt(aucPlainText, aucCipherText, 8); CharStr2HexStr(aucCipherText, szHex, 8); out << szHex << endl; } out.close(); getchar(); return 1; }

三：Java版

package ffcs; //In ECB mode if the same block is encrypted twice with the same key, the resulting //ciphertext blocks are the same. // //In CBC Mode a ciphertext block is obtained by first xoring the //plaintext block with the previous ciphertext block, and encrypting the resulting value. // //In CFB mode a ciphertext block is obtained by encrypting the previous ciphertext block //and xoring the resulting value with the plaintext /** * Blowfish ECB 加解密演算法實現類 * @author huangjf * 2009-3-13 */ public class BlowfishECB { public static final int MAXKEYLENGTH = 56; public static final int BLOCKSIZE = 8; static final int PBOX_ENTRIES = 18; static final int SBOX_ENTRIES = 256; static final int pbox_init[] = { 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x3707344, 0xa4093822, 0x299f31d0, 0x82efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b }; static final int sbox_init_1[] = { 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0xd95748f, 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, 0xf6d6ff3, 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, 0x75372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x4c006ba, 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, 0x250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x2e5b9c5, 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x8ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x8ba4799, 0x6e85076a }; static final int sbox_init_2[] = { 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, 0x21ecc5e, 0x9686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, 0xa9446146, 0xfd0030e, 0xecc8c73e, 0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 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