155714Skris/* crypto/rc5/rc5.h */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22280304Sjkim * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52280304Sjkim * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#ifndef HEADER_RC5_H 60280304Sjkim# define HEADER_RC5_H 6155714Skris 62280304Sjkim# include <openssl/opensslconf.h>/* OPENSSL_NO_RC5 */ 63160814Ssimon 6455714Skris#ifdef __cplusplus 6555714Skrisextern "C" { 6655714Skris#endif 6755714Skris 68280304Sjkim# ifdef OPENSSL_NO_RC5 69280304Sjkim# error RC5 is disabled. 70280304Sjkim# endif 7155714Skris 72280304Sjkim# define RC5_ENCRYPT 1 73280304Sjkim# define RC5_DECRYPT 0 7455714Skris 7555714Skris/* 32 bit. For Alpha, things may get weird */ 76280304Sjkim# define RC5_32_INT unsigned long 7755714Skris 78280304Sjkim# define RC5_32_BLOCK 8 79280304Sjkim# define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */ 8055714Skris 81280304Sjkim/* 82280304Sjkim * This are the only values supported. Tweak the code if you want more The 83280304Sjkim * most supported modes will be RC5-32/12/16 RC5-32/16/8 8455714Skris */ 85280304Sjkim# define RC5_8_ROUNDS 8 86280304Sjkim# define RC5_12_ROUNDS 12 87280304Sjkim# define RC5_16_ROUNDS 16 8855714Skris 89280304Sjkimtypedef struct rc5_key_st { 90280304Sjkim /* Number of rounds */ 91280304Sjkim int rounds; 92280304Sjkim RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)]; 93280304Sjkim} RC5_32_KEY; 9455714Skris 9568651Skrisvoid RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data, 96280304Sjkim int rounds); 97280304Sjkimvoid RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out, 98280304Sjkim RC5_32_KEY *key, int enc); 99280304Sjkimvoid RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key); 100280304Sjkimvoid RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key); 10168651Skrisvoid RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, 102280304Sjkim long length, RC5_32_KEY *ks, unsigned char *iv, 103280304Sjkim int enc); 10468651Skrisvoid RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out, 105280304Sjkim long length, RC5_32_KEY *schedule, 106280304Sjkim unsigned char *ivec, int *num, int enc); 10768651Skrisvoid RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out, 108280304Sjkim long length, RC5_32_KEY *schedule, 109280304Sjkim unsigned char *ivec, int *num); 11055714Skris 11155714Skris#ifdef __cplusplus 11255714Skris} 11355714Skris#endif 11455714Skris 11555714Skris#endif 116