blowfish.h revision 55009
1/* crypto/bf/blowfish.h */ 2/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@mincom.oz.au). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@mincom.oz.au). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@mincom.oz.au)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 * 58 * $FreeBSD: head/sys/crypto/blowfish/blowfish.h 55009 1999-12-22 19:13:38Z shin $ 59 */ 60 61#ifndef HEADER_BLOWFISH_H 62#define HEADER_BLOWFISH_H 63 64#ifdef __cplusplus 65extern "C" { 66#endif 67 68#define BF_ENCRYPT 1 69#define BF_DECRYPT 0 70 71/* If you make this 'unsigned int' the pointer variants will work on 72 * the Alpha, otherwise they will not. Strangly using the '8 byte' 73 * BF_LONG and the default 'non-pointer' inner loop is the best configuration 74 * for the Alpha */ 75#define BF_LONG unsigned long 76 77#define BF_ROUNDS 16 78#define BF_BLOCK 8 79 80typedef struct bf_key_st 81 { 82 BF_LONG P[BF_ROUNDS+2]; 83 BF_LONG S[4*256]; 84 } BF_KEY; 85 86#ifndef NOPROTO 87 88void BF_set_key(BF_KEY *key, int len, unsigned char *data); 89void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key, 90 int encrypt); 91void BF_encrypt(BF_LONG *data,BF_KEY *key,int encrypt); 92void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length, 93 BF_KEY *ks, unsigned char *iv, int encrypt); 94void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length, 95 BF_KEY *schedule, unsigned char *ivec, int *num, int encrypt); 96void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length, 97 BF_KEY *schedule, unsigned char *ivec, int *num); 98char *BF_options(void); 99 100/* added by itojun */ 101struct mbuf; 102void BF_cbc_encrypt_m(struct mbuf *, int, int, BF_KEY *, 103 unsigned char *, int); 104 105#else 106 107void BF_set_key(); 108void BF_ecb_encrypt(); 109void BF_encrypt(); 110void BF_cbc_encrypt(); 111void BF_cfb64_encrypt(); 112void BF_ofb64_encrypt(); 113char *BF_options(); 114 115/* added by itojun */ 116void BF_cbc_encrypt_m(); 117 118#endif 119 120#ifdef __cplusplus 121} 122#endif 123 124#endif 125