1 /* $FreeBSD: src/sys/crypto/blowfish/blowfish.h,v 1.1.2.3 2002/03/26 10:12:23 ume Exp $ */ 2 /* $DragonFly: src/sys/crypto/blowfish/blowfish.h,v 1.3 2003/08/27 10:59:04 rob Exp $ */ 3 /* $KAME: blowfish.h,v 1.12 2002/02/27 01:33:59 itojun Exp $ */ 4 5 /* crypto/bf/blowfish.h */ 6 /* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) 7 * All rights reserved. 8 * 9 * This package is an SSL implementation written 10 * by Eric Young (eay@mincom.oz.au). 11 * The implementation was written so as to conform with Netscapes SSL. 12 * 13 * This library is free for commercial and non-commercial use as long as 14 * the following conditions are aheared to. The following conditions 15 * apply to all code found in this distribution, be it the RC4, RSA, 16 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 17 * included with this distribution is covered by the same copyright terms 18 * except that the holder is Tim Hudson (tjh@mincom.oz.au). 19 * 20 * Copyright remains Eric Young's, and as such any Copyright notices in 21 * the code are not to be removed. 22 * If this package is used in a product, Eric Young should be given attribution 23 * as the author of the parts of the library used. 24 * This can be in the form of a textual message at program startup or 25 * in documentation (online or textual) provided with the package. 26 * 27 * Redistribution and use in source and binary forms, with or without 28 * modification, are permitted provided that the following conditions 29 * are met: 30 * 1. Redistributions of source code must retain the copyright 31 * notice, this list of conditions and the following disclaimer. 32 * 2. Redistributions in binary form must reproduce the above copyright 33 * notice, this list of conditions and the following disclaimer in the 34 * documentation and/or other materials provided with the distribution. 35 * 3. All advertising materials mentioning features or use of this software 36 * must display the following acknowledgement: 37 * "This product includes cryptographic software written by 38 * Eric Young (eay@mincom.oz.au)" 39 * The word 'cryptographic' can be left out if the rouines from the library 40 * being used are not cryptographic related :-). 41 * 4. If you include any Windows specific code (or a derivative thereof) from 42 * the apps directory (application code) you must include an acknowledgement: 43 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" 44 * 45 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 * 57 * The licence and distribution terms for any publically available version or 58 * derivative of this code cannot be changed. i.e. this code cannot simply be 59 * copied and put under another distribution licence 60 * [including the GNU Public Licence.] 61 */ 62 63 #ifndef HEADER_BLOWFISH_H 64 #define HEADER_BLOWFISH_H 65 66 #ifdef __cplusplus 67 extern "C" { 68 #endif 69 70 #define BF_ENCRYPT 1 71 #define BF_DECRYPT 0 72 73 /* must be 32bit quantity */ 74 #define BF_LONG u_int32_t 75 76 #define BF_ROUNDS 16 77 #define BF_BLOCK 8 78 79 typedef struct bf_key_st { 80 BF_LONG P[BF_ROUNDS+2]; 81 BF_LONG S[4*256]; 82 } BF_KEY; 83 84 void BF_set_key (BF_KEY *, int, unsigned char *); 85 void BF_encrypt (BF_LONG *, BF_KEY *); 86 void BF_decrypt (BF_LONG *, BF_KEY *); 87 void BF_cbc_encrypt(const unsigned char *, unsigned char *, long, 88 const BF_KEY *, unsigned char *, int); 89 90 #ifdef __cplusplus 91 } 92 #endif 93 94 #endif 95