Edit File: rc5.h
/* crypto/rc5/rc5.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_RC5_H # define HEADER_RC5_H # include <openssl/opensslconf.h>/* OPENSSL_NO_RC5 */ #ifdef __cplusplus extern "C" { #endif # ifdef OPENSSL_NO_RC5 # error RC5 is disabled. # endif # define RC5_ENCRYPT 1 # define RC5_DECRYPT 0 /* 32 bit. For Alpha, things may get weird */ # define RC5_32_INT unsigned long # define RC5_32_BLOCK 8 # define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */ /* * This are the only values supported. Tweak the code if you want more The * most supported modes will be RC5-32/12/16 RC5-32/16/8 */ # define RC5_8_ROUNDS 8 # define RC5_12_ROUNDS 12 # define RC5_16_ROUNDS 16 typedef struct rc5_key_st { /* Number of rounds */ int rounds; RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)]; } RC5_32_KEY; void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data, int rounds); void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out, RC5_32_KEY *key, int enc); void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key); void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key); void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, long length, RC5_32_KEY *ks, unsigned char *iv, int enc); void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out, long length, RC5_32_KEY *schedule, unsigned char *ivec, int *num, int enc); void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out, long length, RC5_32_KEY *schedule, unsigned char *ivec, int *num); #ifdef __cplusplus } #endif #endif