www.pudn.com > speakfs72.zip > BLOWFISH.H, change:2002-01-05,size:4745b


/* crypto/bf/blowfish.h */ 
/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au) 
 * All rights reserved. 
 * 
 * This package is an SSL implementation written 
 * by Eric Young (eay@mincom.oz.au). 
 * The implementation was written so as to conform with Netscapes SSL. 
 *  
 * This library is free for commercial and non-commercial use as long as 
 * the following conditions are aheared to.  The following conditions 
 * apply to all code found in this distribution, be it the RC4, RSA, 
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation 
 * included with this distribution is covered by the same copyright terms 
 * except that the holder is Tim Hudson (tjh@mincom.oz.au). 
 *  
 * Copyright remains Eric Young's, and as such any Copyright notices in 
 * the code are not to be removed. 
 * If this package is used in a product, Eric Young should be given attribution 
 * as the author of the parts of the library used. 
 * This can be in the form of a textual message at program startup or 
 * in documentation (online or textual) provided with the package. 
 *  
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 1. Redistributions of source code must retain the copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 * 3. All advertising materials mentioning features or use of this software 
 *    must display the following acknowledgement: 
 *    "This product includes cryptographic software written by 
 *     Eric Young (eay@mincom.oz.au)" 
 *    The word 'cryptographic' can be left out if the rouines from the library 
 *    being used are not cryptographic related :-). 
 * 4. If you include any Windows specific code (or a derivative thereof) from  
 *    the apps directory (application code) you must include an acknowledgement: 
 *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)" 
 *  
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE. 
 *  
 * The licence and distribution terms for any publically available version or 
 * derivative of this code cannot be changed.  i.e. this code cannot simply be 
 * copied and put under another distribution licence 
 * [including the GNU Public Licence.] 
 */ 
 
#ifndef HEADER_BLOWFISH_H 
#define HEADER_BLOWFISH_H 
 
#ifdef  __cplusplus 
extern "C" { 
#endif 
 
#define BF_ENCRYPT      1 
#define BF_DECRYPT      0 
 
/* If you make this 'unsigned int' the pointer variants will work on 
 * the Alpha, otherwise they will not.  Strangly using the '8 byte' 
 * BF_LONG and the default 'non-pointer' inner loop is the best configuration 
 * for the Alpha */ 
#define BF_LONG unsigned long 
 
#define BF_ROUNDS       16 
#define BF_BLOCK        8 
 
typedef struct bf_key_st 
        { 
        BF_LONG P[BF_ROUNDS+2]; 
        BF_LONG S[4*256]; 
        } BF_KEY; 
 
#ifndef NOPROTO 
  
void BF_set_key(BF_KEY *key, int len, unsigned char *data); 
void BF_ecb_encrypt(unsigned char *in,unsigned char *out,BF_KEY *key, 
        int encrypt); 
void BF_encrypt(BF_LONG *data,BF_KEY *key,int encrypt); 
void BF_cbc_encrypt(unsigned char *in, unsigned char *out, long length, 
        BF_KEY *ks, unsigned char *iv, int encrypt); 
void BF_cfb64_encrypt(unsigned char *in, unsigned char *out, long length, 
        BF_KEY *schedule, unsigned char *ivec, int *num, int encrypt); 
void BF_ofb64_encrypt(unsigned char *in, unsigned char *out, long length, 
        BF_KEY *schedule, unsigned char *ivec, int *num); 
char *BF_options(void); 
 
#else 
 
void BF_set_key(); 
void BF_ecb_encrypt(); 
void BF_encrypt(); 
void BF_cbc_encrypt(); 
void BF_cfb64_encrypt(); 
void BF_ofb64_encrypt(); 
char *BF_options(); 
 
#endif 
 
#ifdef  __cplusplus 
} 
#endif 
 
#endif