1*1dcdf01fSchristos /* 2*1dcdf01fSchristos * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3*1dcdf01fSchristos * 4*1dcdf01fSchristos * Licensed under the OpenSSL license (the "License"). You may not use 5*1dcdf01fSchristos * this file except in compliance with the License. You can obtain a copy 6*1dcdf01fSchristos * in the file LICENSE in the source distribution or at 7*1dcdf01fSchristos * https://www.openssl.org/source/license.html 8*1dcdf01fSchristos */ 9*1dcdf01fSchristos 10*1dcdf01fSchristos #ifndef HEADER_RC5_H 11*1dcdf01fSchristos # define HEADER_RC5_H 12*1dcdf01fSchristos 13*1dcdf01fSchristos # include <openssl/opensslconf.h> 14*1dcdf01fSchristos 15*1dcdf01fSchristos # ifndef OPENSSL_NO_RC5 16*1dcdf01fSchristos # ifdef __cplusplus 17*1dcdf01fSchristos extern "C" { 18*1dcdf01fSchristos # endif 19*1dcdf01fSchristos 20*1dcdf01fSchristos # define RC5_ENCRYPT 1 21*1dcdf01fSchristos # define RC5_DECRYPT 0 22*1dcdf01fSchristos 23*1dcdf01fSchristos # define RC5_32_INT unsigned int 24*1dcdf01fSchristos 25*1dcdf01fSchristos # define RC5_32_BLOCK 8 26*1dcdf01fSchristos # define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */ 27*1dcdf01fSchristos 28*1dcdf01fSchristos /* 29*1dcdf01fSchristos * This are the only values supported. Tweak the code if you want more The 30*1dcdf01fSchristos * most supported modes will be RC5-32/12/16 RC5-32/16/8 31*1dcdf01fSchristos */ 32*1dcdf01fSchristos # define RC5_8_ROUNDS 8 33*1dcdf01fSchristos # define RC5_12_ROUNDS 12 34*1dcdf01fSchristos # define RC5_16_ROUNDS 16 35*1dcdf01fSchristos 36*1dcdf01fSchristos typedef struct rc5_key_st { 37*1dcdf01fSchristos /* Number of rounds */ 38*1dcdf01fSchristos int rounds; 39*1dcdf01fSchristos RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)]; 40*1dcdf01fSchristos } RC5_32_KEY; 41*1dcdf01fSchristos 42*1dcdf01fSchristos void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data, 43*1dcdf01fSchristos int rounds); 44*1dcdf01fSchristos void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out, 45*1dcdf01fSchristos RC5_32_KEY *key, int enc); 46*1dcdf01fSchristos void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key); 47*1dcdf01fSchristos void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key); 48*1dcdf01fSchristos void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, 49*1dcdf01fSchristos long length, RC5_32_KEY *ks, unsigned char *iv, 50*1dcdf01fSchristos int enc); 51*1dcdf01fSchristos void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out, 52*1dcdf01fSchristos long length, RC5_32_KEY *schedule, 53*1dcdf01fSchristos unsigned char *ivec, int *num, int enc); 54*1dcdf01fSchristos void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out, 55*1dcdf01fSchristos long length, RC5_32_KEY *schedule, 56*1dcdf01fSchristos unsigned char *ivec, int *num); 57*1dcdf01fSchristos 58*1dcdf01fSchristos # ifdef __cplusplus 59*1dcdf01fSchristos } 60*1dcdf01fSchristos # endif 61*1dcdf01fSchristos # endif 62*1dcdf01fSchristos 63*1dcdf01fSchristos #endif 64