Annotation of sys/crypto/blf.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: blf.c,v 1.6 2005/03/24 11:43:40 hshoexer Exp $ */
! 2:
! 3: /*
! 4: * Blowfish block cipher for OpenBSD
! 5: * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
! 6: * All rights reserved.
! 7: *
! 8: * Implementation advice by David Mazieres <dm@lcs.mit.edu>.
! 9: *
! 10: * Redistribution and use in source and binary forms, with or without
! 11: * modification, are permitted provided that the following conditions
! 12: * are met:
! 13: * 1. Redistributions of source code must retain the above copyright
! 14: * notice, this list of conditions and the following disclaimer.
! 15: * 2. Redistributions in binary form must reproduce the above copyright
! 16: * notice, this list of conditions and the following disclaimer in the
! 17: * documentation and/or other materials provided with the distribution.
! 18: * 3. All advertising materials mentioning features or use of this software
! 19: * must display the following acknowledgement:
! 20: * This product includes software developed by Niels Provos.
! 21: * 4. The name of the author may not be used to endorse or promote products
! 22: * derived from this software without specific prior written permission.
! 23: *
! 24: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 25: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 26: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 27: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 28: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 29: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 30: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 31: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 32: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 33: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 34: */
! 35:
! 36: /*
! 37: * This code is derived from section 14.3 and the given source
! 38: * in section V of Applied Cryptography, second edition.
! 39: * Blowfish is an unpatented fast block cipher designed by
! 40: * Bruce Schneier.
! 41: */
! 42:
! 43: #include <sys/param.h>
! 44: #include <sys/systm.h>
! 45:
! 46: #include <crypto/blf.h>
! 47:
! 48: #undef inline
! 49: #ifdef __GNUC__
! 50: #define inline __inline
! 51: #else /* !__GNUC__ */
! 52: #define inline
! 53: #endif /* !__GNUC__ */
! 54:
! 55: /* Function for Feistel Networks */
! 56:
! 57: #define F(s, x) ((((s)[ (((x)>>24)&0xFF)] \
! 58: + (s)[0x100 + (((x)>>16)&0xFF)]) \
! 59: ^ (s)[0x200 + (((x)>> 8)&0xFF)]) \
! 60: + (s)[0x300 + ( (x) &0xFF)])
! 61:
! 62: #define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n])
! 63:
! 64: void
! 65: Blowfish_encipher(blf_ctx *c, u_int32_t *x)
! 66: {
! 67: u_int32_t Xl;
! 68: u_int32_t Xr;
! 69: u_int32_t *s = c->S[0];
! 70: u_int32_t *p = c->P;
! 71:
! 72: Xl = x[0];
! 73: Xr = x[1];
! 74:
! 75: Xl ^= p[0];
! 76: BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2);
! 77: BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4);
! 78: BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6);
! 79: BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8);
! 80: BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10);
! 81: BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12);
! 82: BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14);
! 83: BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16);
! 84:
! 85: x[0] = Xr ^ p[17];
! 86: x[1] = Xl;
! 87: }
! 88:
! 89: void
! 90: Blowfish_decipher(blf_ctx *c, u_int32_t *x)
! 91: {
! 92: u_int32_t Xl;
! 93: u_int32_t Xr;
! 94: u_int32_t *s = c->S[0];
! 95: u_int32_t *p = c->P;
! 96:
! 97: Xl = x[0];
! 98: Xr = x[1];
! 99:
! 100: Xl ^= p[17];
! 101: BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15);
! 102: BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13);
! 103: BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11);
! 104: BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9);
! 105: BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7);
! 106: BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5);
! 107: BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3);
! 108: BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1);
! 109:
! 110: x[0] = Xr ^ p[0];
! 111: x[1] = Xl;
! 112: }
! 113:
! 114: void
! 115: Blowfish_initstate(blf_ctx *c)
! 116: {
! 117: /* P-box and S-box tables initialized with digits of Pi */
! 118:
! 119: static const blf_ctx initstate =
! 120:
! 121: { {
! 122: {
! 123: 0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
! 124: 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
! 125: 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
! 126: 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
! 127: 0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
! 128: 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
! 129: 0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
! 130: 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
! 131: 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
! 132: 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
! 133: 0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
! 134: 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
! 135: 0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
! 136: 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
! 137: 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
! 138: 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
! 139: 0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
! 140: 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
! 141: 0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
! 142: 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
! 143: 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
! 144: 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
! 145: 0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
! 146: 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
! 147: 0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
! 148: 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
! 149: 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
! 150: 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
! 151: 0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
! 152: 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
! 153: 0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
! 154: 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
! 155: 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
! 156: 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
! 157: 0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
! 158: 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
! 159: 0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
! 160: 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
! 161: 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
! 162: 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
! 163: 0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
! 164: 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
! 165: 0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
! 166: 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
! 167: 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
! 168: 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
! 169: 0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
! 170: 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
! 171: 0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
! 172: 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
! 173: 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
! 174: 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
! 175: 0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
! 176: 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
! 177: 0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
! 178: 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
! 179: 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
! 180: 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
! 181: 0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
! 182: 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
! 183: 0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
! 184: 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
! 185: 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
! 186: 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a},
! 187: {
! 188: 0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
! 189: 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
! 190: 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
! 191: 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
! 192: 0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
! 193: 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
! 194: 0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
! 195: 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
! 196: 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
! 197: 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
! 198: 0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
! 199: 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
! 200: 0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
! 201: 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
! 202: 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
! 203: 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
! 204: 0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
! 205: 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
! 206: 0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
! 207: 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
! 208: 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
! 209: 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
! 210: 0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
! 211: 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
! 212: 0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
! 213: 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
! 214: 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
! 215: 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
! 216: 0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
! 217: 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
! 218: 0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
! 219: 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
! 220: 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
! 221: 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
! 222: 0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
! 223: 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
! 224: 0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
! 225: 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
! 226: 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
! 227: 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
! 228: 0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
! 229: 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
! 230: 0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
! 231: 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
! 232: 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
! 233: 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
! 234: 0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
! 235: 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
! 236: 0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
! 237: 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
! 238: 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
! 239: 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
! 240: 0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
! 241: 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
! 242: 0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
! 243: 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
! 244: 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
! 245: 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
! 246: 0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
! 247: 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
! 248: 0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
! 249: 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
! 250: 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
! 251: 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7},
! 252: {
! 253: 0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
! 254: 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
! 255: 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
! 256: 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
! 257: 0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
! 258: 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
! 259: 0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
! 260: 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
! 261: 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
! 262: 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
! 263: 0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
! 264: 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
! 265: 0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
! 266: 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
! 267: 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
! 268: 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
! 269: 0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
! 270: 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
! 271: 0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
! 272: 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
! 273: 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
! 274: 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
! 275: 0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
! 276: 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
! 277: 0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
! 278: 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
! 279: 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
! 280: 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
! 281: 0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
! 282: 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
! 283: 0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
! 284: 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
! 285: 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
! 286: 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
! 287: 0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
! 288: 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
! 289: 0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
! 290: 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
! 291: 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
! 292: 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
! 293: 0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
! 294: 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
! 295: 0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
! 296: 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
! 297: 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
! 298: 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
! 299: 0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
! 300: 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
! 301: 0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
! 302: 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
! 303: 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
! 304: 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
! 305: 0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
! 306: 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
! 307: 0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
! 308: 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
! 309: 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
! 310: 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
! 311: 0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
! 312: 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
! 313: 0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
! 314: 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
! 315: 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
! 316: 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0},
! 317: {
! 318: 0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
! 319: 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
! 320: 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
! 321: 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
! 322: 0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
! 323: 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
! 324: 0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
! 325: 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
! 326: 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
! 327: 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
! 328: 0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
! 329: 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
! 330: 0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
! 331: 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
! 332: 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
! 333: 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
! 334: 0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
! 335: 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
! 336: 0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
! 337: 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
! 338: 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
! 339: 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
! 340: 0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
! 341: 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
! 342: 0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
! 343: 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
! 344: 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
! 345: 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
! 346: 0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
! 347: 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
! 348: 0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
! 349: 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
! 350: 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
! 351: 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
! 352: 0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
! 353: 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
! 354: 0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
! 355: 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
! 356: 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
! 357: 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
! 358: 0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
! 359: 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
! 360: 0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
! 361: 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
! 362: 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
! 363: 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
! 364: 0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
! 365: 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
! 366: 0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
! 367: 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
! 368: 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
! 369: 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
! 370: 0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
! 371: 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
! 372: 0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
! 373: 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
! 374: 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
! 375: 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
! 376: 0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
! 377: 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
! 378: 0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
! 379: 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
! 380: 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
! 381: 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}
! 382: },
! 383: {
! 384: 0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
! 385: 0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
! 386: 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
! 387: 0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
! 388: 0x9216d5d9, 0x8979fb1b
! 389: } };
! 390:
! 391: *c = initstate;
! 392: }
! 393:
! 394: u_int32_t
! 395: Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes,
! 396: u_int16_t *current)
! 397: {
! 398: u_int8_t i;
! 399: u_int16_t j;
! 400: u_int32_t temp;
! 401:
! 402: temp = 0x00000000;
! 403: j = *current;
! 404:
! 405: for (i = 0; i < 4; i++, j++) {
! 406: if (j >= databytes)
! 407: j = 0;
! 408: temp = (temp << 8) | data[j];
! 409: }
! 410:
! 411: *current = j;
! 412: return temp;
! 413: }
! 414:
! 415: void
! 416: Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes)
! 417: {
! 418: u_int16_t i;
! 419: u_int16_t j;
! 420: u_int16_t k;
! 421: u_int32_t temp;
! 422: u_int32_t data[2];
! 423:
! 424: j = 0;
! 425: for (i = 0; i < BLF_N + 2; i++) {
! 426: /* Extract 4 int8 to 1 int32 from keystream */
! 427: temp = Blowfish_stream2word(key, keybytes, &j);
! 428: c->P[i] = c->P[i] ^ temp;
! 429: }
! 430:
! 431: j = 0;
! 432: data[0] = 0x00000000;
! 433: data[1] = 0x00000000;
! 434: for (i = 0; i < BLF_N + 2; i += 2) {
! 435: Blowfish_encipher(c, data);
! 436:
! 437: c->P[i] = data[0];
! 438: c->P[i + 1] = data[1];
! 439: }
! 440:
! 441: for (i = 0; i < 4; i++) {
! 442: for (k = 0; k < 256; k += 2) {
! 443: Blowfish_encipher(c, data);
! 444:
! 445: c->S[i][k] = data[0];
! 446: c->S[i][k + 1] = data[1];
! 447: }
! 448: }
! 449: }
! 450:
! 451:
! 452: void
! 453: Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes,
! 454: const u_int8_t *key, u_int16_t keybytes)
! 455: {
! 456: u_int16_t i;
! 457: u_int16_t j;
! 458: u_int16_t k;
! 459: u_int32_t temp;
! 460: u_int32_t d[2];
! 461:
! 462: j = 0;
! 463: for (i = 0; i < BLF_N + 2; i++) {
! 464: /* Extract 4 int8 to 1 int32 from keystream */
! 465: temp = Blowfish_stream2word(key, keybytes, &j);
! 466: c->P[i] = c->P[i] ^ temp;
! 467: }
! 468:
! 469: j = 0;
! 470: d[0] = 0x00000000;
! 471: d[1] = 0x00000000;
! 472: for (i = 0; i < BLF_N + 2; i += 2) {
! 473: d[0] ^= Blowfish_stream2word(data, databytes, &j);
! 474: d[1] ^= Blowfish_stream2word(data, databytes, &j);
! 475: Blowfish_encipher(c, d);
! 476:
! 477: c->P[i] = d[0];
! 478: c->P[i + 1] = d[1];
! 479: }
! 480:
! 481: for (i = 0; i < 4; i++) {
! 482: for (k = 0; k < 256; k += 2) {
! 483: d[0]^= Blowfish_stream2word(data, databytes, &j);
! 484: d[1] ^= Blowfish_stream2word(data, databytes, &j);
! 485: Blowfish_encipher(c, d);
! 486:
! 487: c->S[i][k] = d[0];
! 488: c->S[i][k + 1] = d[1];
! 489: }
! 490: }
! 491:
! 492: }
! 493:
! 494: void
! 495: blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len)
! 496: {
! 497: /* Initalize S-boxes and subkeys with Pi */
! 498: Blowfish_initstate(c);
! 499:
! 500: /* Transform S-boxes and subkeys with key */
! 501: Blowfish_expand0state(c, k, len);
! 502: }
! 503:
! 504: void
! 505: blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
! 506: {
! 507: u_int32_t *d;
! 508: u_int16_t i;
! 509:
! 510: d = data;
! 511: for (i = 0; i < blocks; i++) {
! 512: Blowfish_encipher(c, d);
! 513: d += 2;
! 514: }
! 515: }
! 516:
! 517: void
! 518: blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
! 519: {
! 520: u_int32_t *d;
! 521: u_int16_t i;
! 522:
! 523: d = data;
! 524: for (i = 0; i < blocks; i++) {
! 525: Blowfish_decipher(c, d);
! 526: d += 2;
! 527: }
! 528: }
! 529:
! 530: void
! 531: blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
! 532: {
! 533: u_int32_t l, r, d[2];
! 534: u_int32_t i;
! 535:
! 536: for (i = 0; i < len; i += 8) {
! 537: l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
! 538: r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
! 539: d[0] = l;
! 540: d[1] = r;
! 541: Blowfish_encipher(c, d);
! 542: l = d[0];
! 543: r = d[1];
! 544: data[0] = l >> 24 & 0xff;
! 545: data[1] = l >> 16 & 0xff;
! 546: data[2] = l >> 8 & 0xff;
! 547: data[3] = l & 0xff;
! 548: data[4] = r >> 24 & 0xff;
! 549: data[5] = r >> 16 & 0xff;
! 550: data[6] = r >> 8 & 0xff;
! 551: data[7] = r & 0xff;
! 552: data += 8;
! 553: }
! 554: }
! 555:
! 556: void
! 557: blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
! 558: {
! 559: u_int32_t l, r, d[2];
! 560: u_int32_t i;
! 561:
! 562: for (i = 0; i < len; i += 8) {
! 563: l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
! 564: r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
! 565: d[0] = l;
! 566: d[1] = r;
! 567: Blowfish_decipher(c, d);
! 568: l = d[0];
! 569: r = d[1];
! 570: data[0] = l >> 24 & 0xff;
! 571: data[1] = l >> 16 & 0xff;
! 572: data[2] = l >> 8 & 0xff;
! 573: data[3] = l & 0xff;
! 574: data[4] = r >> 24 & 0xff;
! 575: data[5] = r >> 16 & 0xff;
! 576: data[6] = r >> 8 & 0xff;
! 577: data[7] = r & 0xff;
! 578: data += 8;
! 579: }
! 580: }
! 581:
! 582: void
! 583: blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len)
! 584: {
! 585: u_int32_t l, r, d[2];
! 586: u_int32_t i, j;
! 587:
! 588: for (i = 0; i < len; i += 8) {
! 589: for (j = 0; j < 8; j++)
! 590: data[j] ^= iv[j];
! 591: l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
! 592: r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
! 593: d[0] = l;
! 594: d[1] = r;
! 595: Blowfish_encipher(c, d);
! 596: l = d[0];
! 597: r = d[1];
! 598: data[0] = l >> 24 & 0xff;
! 599: data[1] = l >> 16 & 0xff;
! 600: data[2] = l >> 8 & 0xff;
! 601: data[3] = l & 0xff;
! 602: data[4] = r >> 24 & 0xff;
! 603: data[5] = r >> 16 & 0xff;
! 604: data[6] = r >> 8 & 0xff;
! 605: data[7] = r & 0xff;
! 606: iv = data;
! 607: data += 8;
! 608: }
! 609: }
! 610:
! 611: void
! 612: blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len)
! 613: {
! 614: u_int32_t l, r, d[2];
! 615: u_int8_t *iv;
! 616: u_int32_t i, j;
! 617:
! 618: iv = data + len - 16;
! 619: data = data + len - 8;
! 620: for (i = len - 8; i >= 8; i -= 8) {
! 621: l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
! 622: r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
! 623: d[0] = l;
! 624: d[1] = r;
! 625: Blowfish_decipher(c, d);
! 626: l = d[0];
! 627: r = d[1];
! 628: data[0] = l >> 24 & 0xff;
! 629: data[1] = l >> 16 & 0xff;
! 630: data[2] = l >> 8 & 0xff;
! 631: data[3] = l & 0xff;
! 632: data[4] = r >> 24 & 0xff;
! 633: data[5] = r >> 16 & 0xff;
! 634: data[6] = r >> 8 & 0xff;
! 635: data[7] = r & 0xff;
! 636: for (j = 0; j < 8; j++)
! 637: data[j] ^= iv[j];
! 638: iv -= 8;
! 639: data -= 8;
! 640: }
! 641: l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
! 642: r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
! 643: d[0] = l;
! 644: d[1] = r;
! 645: Blowfish_decipher(c, d);
! 646: l = d[0];
! 647: r = d[1];
! 648: data[0] = l >> 24 & 0xff;
! 649: data[1] = l >> 16 & 0xff;
! 650: data[2] = l >> 8 & 0xff;
! 651: data[3] = l & 0xff;
! 652: data[4] = r >> 24 & 0xff;
! 653: data[5] = r >> 16 & 0xff;
! 654: data[6] = r >> 8 & 0xff;
! 655: data[7] = r & 0xff;
! 656: for (j = 0; j < 8; j++)
! 657: data[j] ^= iva[j];
! 658: }
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