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/* crypto/bf/blowfish.h */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * 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@cryptsoft.com). * * 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@cryptsoft.com)" * 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@cryptsoft.com)" * * 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 # include <openssl/e_os2.h> #ifdef __cplusplus extern "C" { #endif # ifdef OPENSSL_NO_BF # error BF is disabled. # endif # define BF_ENCRYPT 1 # define BF_DECRYPT 0 /*- * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! * ! BF_LONG has to be at least 32 bits wide. If it's wider, then ! * ! BF_LONG_LOG2 has to be defined along. ! * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */ # if defined(__LP32__) # define BF_LONG unsigned long # elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__) # define BF_LONG unsigned long # define BF_LONG_LOG2 3 /* * _CRAY note. I could declare short, but I have no idea what impact * does it have on performance on none-T3E machines. I could declare * int, but at least on C90 sizeof(int) can be chosen at compile time. * So I've chosen long... * <appro@fy.chalmers.se> */ # else # define BF_LONG unsigned int # endif # 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; # ifdef OPENSSL_FIPS void private_BF_set_key(BF_KEY *key, int len, const unsigned char *data); # endif void BF_set_key(BF_KEY *key, int len, const unsigned char *data); void BF_encrypt(BF_LONG *data, const BF_KEY *key); void BF_decrypt(BF_LONG *data, const BF_KEY *key); void BF_ecb_encrypt(const unsigned char *in, unsigned char *out, const BF_KEY *key, int enc); void BF_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, const BF_KEY *schedule, unsigned char *ivec, int enc); void BF_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length, const BF_KEY *schedule, unsigned char *ivec, int *num, int enc); void BF_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length, const BF_KEY *schedule, unsigned char *ivec, int *num); const char *BF_options(void); #ifdef __cplusplus } #endif #endif
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