" blowfish encryption " This is a port of blowfish function. " http://www.schneier.com/blowfish.html " Last Change: 2010-02-16 " Maintainer: Yukihiro Nakadaira " Reference: " PKCS #5: Password-Based Cryptography Specification " http://www.ietf.org/rfc/rfc2898.txt " padding rule " http://www.ietf.org/rfc/rfc1423.txt " TODO: " ecb, cbc and/or something let s:save_cpo = &cpo set cpo&vim " @param mixed key String or Byte List " @param mixed data String or Byte List " @param Number padding *0:None 1:PKCS#5 padding " @return Byte List function blowfish#encrypt(key, data, ...) let key = (type(a:key) == type("")) ? s:str2bytes(a:key) : a:key let data = (type(a:data) == type("")) ? s:str2bytes(a:data) : a:data let padding = get(a:000, 0, 0) let padding_byte = get(a:000, 0, 0x05) if len(key) < s:KEYBYTES && s:MAXKEYBYTES < len(key) throw printf("key length should be %d <= key <= %d", s:KEYBYTES, s:MAXKEYBYTES) endif if padding == 1 let data = s:PKCS5_padding(data, s:BLOCKSIZE) endif if len(data) % s:BLOCKSIZE != 0 throw "data not multiple of block length" endif let res = [] let blowfish = deepcopy(s:Blowfish, 1) call blowfish.Initialize(key) for i in range(0, len(data) - 1, 8) let L = s:bitwise_lshift(data[i + 0], 24) + s:bitwise_lshift(data[i + 1], 16) + s:bitwise_lshift(data[i + 2], 8) + data[i + 3] let R = s:bitwise_lshift(data[i + 4], 24) + s:bitwise_lshift(data[i + 5], 16) + s:bitwise_lshift(data[i + 6], 8) + data[i + 7] let [L, R] = blowfish.encipher(L, R) call add(res, s:bitwise_rshift(L, 24)) call add(res, s:bitwise_and(s:bitwise_rshift(L, 16), 0xFF)) call add(res, s:bitwise_and(s:bitwise_rshift(L, 8), 0xFF)) call add(res, s:bitwise_and(L, 0xFF)) call add(res, s:bitwise_rshift(R, 24)) call add(res, s:bitwise_and(s:bitwise_rshift(R, 16), 0xFF)) call add(res, s:bitwise_and(s:bitwise_rshift(R, 8), 0xFF)) call add(res, s:bitwise_and(R, 0xFF)) endfor return res endfunction " @param mixed key String or Byte List " @param mixed data String or Byte List " @param Number padding *0:None 1:PKCS#5 padding " @return Byte List function blowfish#decrypt(key, data, ...) let key = (type(a:key) == type("")) ? s:str2bytes(a:key) : a:key let data = (type(a:data) == type("")) ? s:str2bytes(a:data) : a:data let padding = get(a:000, 0, 0) if len(key) < s:KEYBYTES && s:MAXKEYBYTES < len(key) throw printf("key length should be %d <= key <= %d", s:KEYBYTES, s:MAXKEYBYTES) endif if len(data) % s:BLOCKSIZE != 0 throw "data not multiple of block length" endif let res = [] let blowfish = deepcopy(s:Blowfish, 1) call blowfish.Initialize(key) for i in range(0, len(data) - 1, 8) let L = s:bitwise_lshift(data[i + 0], 24) + s:bitwise_lshift(data[i + 1], 16) + s:bitwise_lshift(data[i + 2], 8) + data[i + 3] let R = s:bitwise_lshift(data[i + 4], 24) + s:bitwise_lshift(data[i + 5], 16) + s:bitwise_lshift(data[i + 6], 8) + data[i + 7] let [L, R] = blowfish.decipher(L, R) call add(res, s:bitwise_rshift(L, 24)) call add(res, s:bitwise_and(s:bitwise_rshift(L, 16), 0xFF)) call add(res, s:bitwise_and(s:bitwise_rshift(L, 8), 0xFF)) call add(res, s:bitwise_and(L, 0xFF)) call add(res, s:bitwise_rshift(R, 24)) call add(res, s:bitwise_and(s:bitwise_rshift(R, 16), 0xFF)) call add(res, s:bitwise_and(s:bitwise_rshift(R, 8), 0xFF)) call add(res, s:bitwise_and(R, 0xFF)) endfor " remove padding if padding == 1 let res = s:PKCS5_unpadding(res, s:BLOCKSIZE) endif return res endfunction function blowfish#test() let password = s:str2bytes("MY PASSWORD") let data = s:str2bytes("The quick brown fox jumps over the lazy dog") " generated by c let expect = s:hex2bytes("2336495639a0e16a2f888f22d407df2ee0f80e1e7e625fe94b129fcd6ad37ad81f224cf58022ae617356d00f42869e27") let encrypted = blowfish#encrypt(password, data, 1) let decrypted = blowfish#decrypt(password, encrypted, 1) echo "encrypted:" s:bytes2hex(encrypted) echo " expect:" s:bytes2hex(expect) echo "decrypted:" s:bytes2hex(decrypted) echo " data:" s:bytes2hex(data) if encrypted == expect && decrypted == data echo "test: OK" else echo "test: NG" endif " openssl test " TODO: look into openssl manual or source let salt = s:str2bytes("MY SALT") " len(salt) <= 8 if len(salt) < 8 let salt += repeat([0], 8 - len(salt)) endif let key = s:hex2bytes(md5#md5bin(password + salt)) let encrypted = blowfish#encrypt(key, data, 1) " added "Salted__XXXXXXXX" header let header = s:str2bytes("Salted__") + salt let encrypted = header + encrypted let t = system(printf('openssl bf-ecb -k "%s" -S "%s" | xxd -p', s:bytes2str(password), s:bytes2hex(salt)), s:bytes2str(data)) let openssl_encrypted = s:hex2bytes(substitute(t, '\_s', '', 'g')) echo " vim:" s:bytes2hex(encrypted) echo "openssl:" s:bytes2hex(openssl_encrypted) if encrypted == openssl_encrypted echo "openssl test: OK" else echo "openssl test: NG" endif endfunction function! s:PKCS5_padding(data, blocksize) " PKCS#5 padding let pslen = a:blocksize - (len(a:data) % a:blocksize) let ps = repeat([pslen], pslen) return a:data + ps endfunction function! s:PKCS5_unpadding(data, blocksize) " PKCS#5 padding let pslen = a:data[-1] if pslen < 1 || a:blocksize < pslen || pslen > len(a:data) throw "invalid padding length" endif let ps = a:data[-pslen : ] if ps != repeat([pslen], pslen) throw "invalid padding byte" endif return a:data[ : -pslen - 1] endfunction let s:MAXKEYBYTES = 56 " 448 bits let s:KEYBYTES = 8 let s:N = 16 let s:BLOCKSIZE = 8 " unsigned long P[N + 2]; let s:P = [ \ 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, \ 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89, \ 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c, \ 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, \ 0x9216d5d9, 0x8979fb1b \ ] " unsigned long S[4][256]; let s:S = [ \ [ \ 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, \ 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99, \ 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, \ 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, \ 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, \ 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013, \ 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, \ 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e, \ 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, \ 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, \ 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, \ 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a, \ 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, \ 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677, \ 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, \ 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, \ 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, \ 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239, \ 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, \ 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0, \ 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, \ 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, \ 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, \ 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe, \ 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, \ 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d, \ 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, \ 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, \ 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, \ 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463, \ 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, \ 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09, \ 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, \ 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, \ 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, \ 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8, \ 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, \ 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82, \ 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, \ 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, \ 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, \ 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b, \ 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, \ 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8, \ 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, \ 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, \ 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, \ 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c, \ 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, \ 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1, \ 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, \ 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, \ 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, \ 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf, \ 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, \ 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af, \ 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, \ 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, \ 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, \ 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915, \ 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, \ 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915, \ 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, \ 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a, \ ], \ [ \ 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, \ 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266, \ 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, \ 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, \ 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, \ 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1, \ 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, \ 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1, \ 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, \ 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, \ 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, \ 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd, \ 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, \ 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7, \ 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, \ 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, \ 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, \ 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af, \ 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, \ 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87, \ 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, \ 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, \ 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, \ 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd, \ 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, \ 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509, \ 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, \ 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, \ 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, \ 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a, \ 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, \ 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960, \ 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, \ 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, \ 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, \ 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84, \ 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, \ 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf, \ 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, \ 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, \ 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, \ 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7, \ 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, \ 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281, \ 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, \ 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, \ 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, \ 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73, \ 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, \ 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0, \ 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, \ 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, \ 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, \ 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285, \ 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, \ 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061, \ 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, \ 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, \ 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, \ 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc, \ 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, \ 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340, \ 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, \ 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7, \ ], \ [ \ 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, \ 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068, \ 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, \ 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, \ 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, \ 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504, \ 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, \ 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb, \ 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, \ 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, \ 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, \ 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b, \ 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, \ 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb, \ 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, \ 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, \ 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, \ 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c, \ 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, \ 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc, \ 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, \ 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, \ 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, \ 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115, \ 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, \ 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728, \ 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, \ 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, \ 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, \ 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d, \ 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, \ 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b, \ 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, \ 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, \ 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, \ 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c, \ 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, \ 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9, \ 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, \ 0x64af674e, 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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, \ ] \ ] " struct let s:Blowfish = {} let s:Blowfish.P = [] let s:Blowfish.S = [] " unsigned long F(unsigned long x) function s:Blowfish.F(x) let x = a:x let d = s:bitwise_and(x, 0x00FF) let x = s:bitwise_rshift(x, 8) let c = s:bitwise_and(x, 0x00FF) let x = s:bitwise_rshift(x, 8) let b = s:bitwise_and(x, 0x00FF) let x = s:bitwise_rshift(x, 8) let a = s:bitwise_and(x, 0x00FF) let y = self.S[0][a] + self.S[1][b] let y = s:bitwise_xor(y, self.S[2][c]) let y = y + self.S[3][d] return y endfunction " void Blowfish_encipher(unsigned long *xl, unsigned long *xr) function s:Blowfish.encipher(xl, xr) let Xl = a:xl let Xr = a:xr for i in range(s:N) let Xl = s:bitwise_xor(Xl, self.P[i]) let Xr = s:bitwise_xor(self.F(Xl), Xr) let [Xl, Xr] = [Xr, Xl] endfor let [Xl, Xr] = [Xr, Xl] let Xr = s:bitwise_xor(Xr, self.P[s:N]) let Xl = s:bitwise_xor(Xl, self.P[s:N + 1]) return [Xl, Xr] endfunction " void Blowfish_decipher(unsigned long *xl, unsigned long *xr) function s:Blowfish.decipher(xl, xr) let Xl = a:xl let Xr = a:xr for i in range(s:N + 1, 2, -1) let Xl = s:bitwise_xor(Xl, self.P[i]) let Xr = s:bitwise_xor(self.F(Xl), Xr) let [Xl, Xr] = [Xr, Xl] endfor let [Xl, Xr] = [Xr, Xl] let Xr = s:bitwise_xor(Xr, self.P[1]) let Xl = s:bitwise_xor(Xl, self.P[0]) return [Xl, Xr] endfunction " short InitializeBlowfish(char key[], short keybytes) function s:Blowfish.Initialize(key) let self.P = deepcopy(s:P, 1) let self.S = deepcopy(s:S, 1) let j = 0 for i in range(s:N + 2) let data = 0x00000000 for k in range(4) let data = s:bitwise_or(s:bitwise_lshift(data, 8), a:key[j]) let j = j + 1 if j >= len(a:key) let j = 0 endif endfor let self.P[i] = s:bitwise_xor(self.P[i], data) endfor let datal = 0x00000000 let datar = 0x00000000 for i in range(0, s:N + 1, 2) let [datal, datar] = self.encipher(datal, datar) let self.P[i] = datal let self.P[i + 1] = datar endfor for i in range(4) for j in range(0, 255, 2) let [datal, datar] = self.encipher(datal, datar) let self.S[i][j] = datal let self.S[i][j + 1] = datar endfor endfor endfunction "--------------------------------------------------------------------- " misc function! s:str2bytes(str) return map(range(len(a:str)), 'char2nr(a:str[v:val])') endfunction function! s:bytes2str(bytes) return eval('"' . join(map(copy(a:bytes), 'printf(''\x%02x'', v:val)'), '') . '"') endfunction function! s:hex2bytes(str) return map(split(a:str, '..\zs'), 'str2nr(v:val, 16)') endfunction function! s:bytes2hex(bytes) return join(map(copy(a:bytes), 'printf("%02x", v:val)'), '') endfunction function! s:cmp(a, b) let a = printf("%08x", a:a) let b = printf("%08x", a:b) return a < b ? -1 : a > b ? 1 : 0 endfunction function! s:uint8(n) return s:bitwise_and(a:n, 0xFF) endfunction let s:k = [ \ 0x1, 0x2, 0x4, 0x8, \ 0x10, 0x20, 0x40, 0x80, \ 0x100, 0x200, 0x400, 0x800, \ 0x1000, 0x2000, 0x4000, 0x8000, \ 0x10000, 0x20000, 0x40000, 0x80000, \ 0x100000, 0x200000, 0x400000, 0x800000, \ 0x1000000, 0x2000000, 0x4000000, 0x8000000, \ 0x10000000, 0x20000000, 0x40000000, 0x80000000, \ ] let s:and = [ \ [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], \ [0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1], \ [0x0, 0x0, 0x2, 0x2, 0x0, 0x0, 0x2, 0x2, 0x0, 0x0, 0x2, 0x2, 0x0, 0x0, 0x2, 0x2], \ [0x0, 0x1, 0x2, 0x3, 0x0, 0x1, 0x2, 0x3, 0x0, 0x1, 0x2, 0x3, 0x0, 0x1, 0x2, 0x3], \ [0x0, 0x0, 0x0, 0x0, 0x4, 0x4, 0x4, 0x4, 0x0, 0x0, 0x0, 0x0, 0x4, 0x4, 0x4, 0x4], \ [0x0, 0x1, 0x0, 0x1, 0x4, 0x5, 0x4, 0x5, 0x0, 0x1, 0x0, 0x1, 0x4, 0x5, 0x4, 0x5], \ [0x0, 0x0, 0x2, 0x2, 0x4, 0x4, 0x6, 0x6, 0x0, 0x0, 0x2, 0x2, 0x4, 0x4, 0x6, 0x6], \ [0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7], \ [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8], \ [0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x1, 0x8, 0x9, 0x8, 0x9, 0x8, 0x9, 0x8, 0x9], \ [0x0, 0x0, 0x2, 0x2, 0x0, 0x0, 0x2, 0x2, 0x8, 0x8, 0xA, 0xA, 0x8, 0x8, 0xA, 0xA], \ [0x0, 0x1, 0x2, 0x3, 0x0, 0x1, 0x2, 0x3, 0x8, 0x9, 0xA, 0xB, 0x8, 0x9, 0xA, 0xB], \ [0x0, 0x0, 0x0, 0x0, 0x4, 0x4, 0x4, 0x4, 0x8, 0x8, 0x8, 0x8, 0xC, 0xC, 0xC, 0xC], \ [0x0, 0x1, 0x0, 0x1, 0x4, 0x5, 0x4, 0x5, 0x8, 0x9, 0x8, 0x9, 0xC, 0xD, 0xC, 0xD], \ [0x0, 0x0, 0x2, 0x2, 0x4, 0x4, 0x6, 0x6, 0x8, 0x8, 0xA, 0xA, 0xC, 0xC, 0xE, 0xE], \ [0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF] \ ] let s:or = [ \ [0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF], \ [0x1, 0x1, 0x3, 0x3, 0x5, 0x5, 0x7, 0x7, 0x9, 0x9, 0xB, 0xB, 0xD, 0xD, 0xF, 0xF], \ [0x2, 0x3, 0x2, 0x3, 0x6, 0x7, 0x6, 0x7, 0xA, 0xB, 0xA, 0xB, 0xE, 0xF, 0xE, 0xF], \ [0x3, 0x3, 0x3, 0x3, 0x7, 0x7, 0x7, 0x7, 0xB, 0xB, 0xB, 0xB, 0xF, 0xF, 0xF, 0xF], \ [0x4, 0x5, 0x6, 0x7, 0x4, 0x5, 0x6, 0x7, 0xC, 0xD, 0xE, 0xF, 0xC, 0xD, 0xE, 0xF], \ [0x5, 0x5, 0x7, 0x7, 0x5, 0x5, 0x7, 0x7, 0xD, 0xD, 0xF, 0xF, 0xD, 0xD, 0xF, 0xF], \ [0x6, 0x7, 0x6, 0x7, 0x6, 0x7, 0x6, 0x7, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF], \ [0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF], \ [0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF], \ [0x9, 0x9, 0xB, 0xB, 0xD, 0xD, 0xF, 0xF, 0x9, 0x9, 0xB, 0xB, 0xD, 0xD, 0xF, 0xF], \ [0xA, 0xB, 0xA, 0xB, 0xE, 0xF, 0xE, 0xF, 0xA, 0xB, 0xA, 0xB, 0xE, 0xF, 0xE, 0xF], \ [0xB, 0xB, 0xB, 0xB, 0xF, 0xF, 0xF, 0xF, 0xB, 0xB, 0xB, 0xB, 0xF, 0xF, 0xF, 0xF], \ [0xC, 0xD, 0xE, 0xF, 0xC, 0xD, 0xE, 0xF, 0xC, 0xD, 0xE, 0xF, 0xC, 0xD, 0xE, 0xF], \ [0xD, 0xD, 0xF, 0xF, 0xD, 0xD, 0xF, 0xF, 0xD, 0xD, 0xF, 0xF, 0xD, 0xD, 0xF, 0xF], \ [0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF, 0xE, 0xF], \ [0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF] \ ] let s:xor = [ \ [0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF], \ [0x1, 0x0, 0x3, 0x2, 0x5, 0x4, 0x7, 0x6, 0x9, 0x8, 0xB, 0xA, 0xD, 0xC, 0xF, 0xE], \ [0x2, 0x3, 0x0, 0x1, 0x6, 0x7, 0x4, 0x5, 0xA, 0xB, 0x8, 0x9, 0xE, 0xF, 0xC, 0xD], \ [0x3, 0x2, 0x1, 0x0, 0x7, 0x6, 0x5, 0x4, 0xB, 0xA, 0x9, 0x8, 0xF, 0xE, 0xD, 0xC], \ [0x4, 0x5, 0x6, 0x7, 0x0, 0x1, 0x2, 0x3, 0xC, 0xD, 0xE, 0xF, 0x8, 0x9, 0xA, 0xB], \ [0x5, 0x4, 0x7, 0x6, 0x1, 0x0, 0x3, 0x2, 0xD, 0xC, 0xF, 0xE, 0x9, 0x8, 0xB, 0xA], \ [0x6, 0x7, 0x4, 0x5, 0x2, 0x3, 0x0, 0x1, 0xE, 0xF, 0xC, 0xD, 0xA, 0xB, 0x8, 0x9], \ [0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0, 0xF, 0xE, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8], \ [0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF, 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7], \ [0x9, 0x8, 0xB, 0xA, 0xD, 0xC, 0xF, 0xE, 0x1, 0x0, 0x3, 0x2, 0x5, 0x4, 0x7, 0x6], \ [0xA, 0xB, 0x8, 0x9, 0xE, 0xF, 0xC, 0xD, 0x2, 0x3, 0x0, 0x1, 0x6, 0x7, 0x4, 0x5], \ [0xB, 0xA, 0x9, 0x8, 0xF, 0xE, 0xD, 0xC, 0x3, 0x2, 0x1, 0x0, 0x7, 0x6, 0x5, 0x4], \ [0xC, 0xD, 0xE, 0xF, 0x8, 0x9, 0xA, 0xB, 0x4, 0x5, 0x6, 0x7, 0x0, 0x1, 0x2, 0x3], \ [0xD, 0xC, 0xF, 0xE, 0x9, 0x8, 0xB, 0xA, 0x5, 0x4, 0x7, 0x6, 0x1, 0x0, 0x3, 0x2], \ [0xE, 0xF, 0xC, 0xD, 0xA, 0xB, 0x8, 0x9, 0x6, 0x7, 0x4, 0x5, 0x2, 0x3, 0x0, 0x1], \ [0xF, 0xE, 0xD, 0xC, 0xB, 0xA, 0x9, 0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0] \ ] function! s:bitwise_lshift(a, n) return a:a * s:k[a:n] endfunction function! s:bitwise_rshift(a, n) let a = a:a < 0 ? a:a - 0x80000000 : a:a let a = a / s:k[a:n] if a:a < 0 let a += 0x40000000 / s:k[a:n - 1] endif return a endfunction function! s:bitwise_not(a) return -a:a - 1 endfunction function! s:bitwise_and(a, b) let a = a:a < 0 ? a:a - 0x80000000 : a:a let b = a:b < 0 ? a:b - 0x80000000 : a:b let r = 0 let n = 1 while a && b let r += s:and[a % 0x10][b % 0x10] * n let a = a / 0x10 let b = b / 0x10 let n = n * 0x10 endwhile if (a:a < 0) && (a:b < 0) let r += 0x80000000 endif return r endfunction function! s:bitwise_or(a, b) let a = a:a < 0 ? a:a - 0x80000000 : a:a let b = a:b < 0 ? a:b - 0x80000000 : a:b let r = 0 let n = 1 while a || b let r += s:or[a % 0x10][b % 0x10] * n let a = a / 0x10 let b = b / 0x10 let n = n * 0x10 endwhile if (a:a < 0) || (a:b < 0) let r += 0x80000000 endif return r endfunction function! s:bitwise_xor(a, b) let a = a:a < 0 ? a:a - 0x80000000 : a:a let b = a:b < 0 ? a:b - 0x80000000 : a:b let r = 0 let n = 1 while a || b let r += s:xor[a % 0x10][b % 0x10] * n let a = a / 0x10 let b = b / 0x10 let n = n * 0x10 endwhile if (a:a < 0) != (a:b < 0) let r += 0x80000000 endif return r endfunction let &cpo = s:save_cpo unlet s:save_cpo