1*4724848cSchristos /* 2*4724848cSchristos * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3*4724848cSchristos * 4*4724848cSchristos * Licensed under the OpenSSL license (the "License"). You may not use 5*4724848cSchristos * this file except in compliance with the License. You can obtain a copy 6*4724848cSchristos * in the file LICENSE in the source distribution or at 7*4724848cSchristos * https://www.openssl.org/source/license.html 8*4724848cSchristos */ 9*4724848cSchristos 10*4724848cSchristos #ifndef HEADER_RC5_H 11*4724848cSchristos # define HEADER_RC5_H 12*4724848cSchristos 13*4724848cSchristos # include <openssl/opensslconf.h> 14*4724848cSchristos 15*4724848cSchristos # ifndef OPENSSL_NO_RC5 16*4724848cSchristos # ifdef __cplusplus 17*4724848cSchristos extern "C" { 18*4724848cSchristos # endif 19*4724848cSchristos 20*4724848cSchristos # define RC5_ENCRYPT 1 21*4724848cSchristos # define RC5_DECRYPT 0 22*4724848cSchristos 23*4724848cSchristos # define RC5_32_INT unsigned int 24*4724848cSchristos 25*4724848cSchristos # define RC5_32_BLOCK 8 26*4724848cSchristos # define RC5_32_KEY_LENGTH 16/* This is a default, max is 255 */ 27*4724848cSchristos 28*4724848cSchristos /* 29*4724848cSchristos * This are the only values supported. Tweak the code if you want more The 30*4724848cSchristos * most supported modes will be RC5-32/12/16 RC5-32/16/8 31*4724848cSchristos */ 32*4724848cSchristos # define RC5_8_ROUNDS 8 33*4724848cSchristos # define RC5_12_ROUNDS 12 34*4724848cSchristos # define RC5_16_ROUNDS 16 35*4724848cSchristos 36*4724848cSchristos typedef struct rc5_key_st { 37*4724848cSchristos /* Number of rounds */ 38*4724848cSchristos int rounds; 39*4724848cSchristos RC5_32_INT data[2 * (RC5_16_ROUNDS + 1)]; 40*4724848cSchristos } RC5_32_KEY; 41*4724848cSchristos 42*4724848cSchristos void RC5_32_set_key(RC5_32_KEY *key, int len, const unsigned char *data, 43*4724848cSchristos int rounds); 44*4724848cSchristos void RC5_32_ecb_encrypt(const unsigned char *in, unsigned char *out, 45*4724848cSchristos RC5_32_KEY *key, int enc); 46*4724848cSchristos void RC5_32_encrypt(unsigned long *data, RC5_32_KEY *key); 47*4724848cSchristos void RC5_32_decrypt(unsigned long *data, RC5_32_KEY *key); 48*4724848cSchristos void RC5_32_cbc_encrypt(const unsigned char *in, unsigned char *out, 49*4724848cSchristos long length, RC5_32_KEY *ks, unsigned char *iv, 50*4724848cSchristos int enc); 51*4724848cSchristos void RC5_32_cfb64_encrypt(const unsigned char *in, unsigned char *out, 52*4724848cSchristos long length, RC5_32_KEY *schedule, 53*4724848cSchristos unsigned char *ivec, int *num, int enc); 54*4724848cSchristos void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out, 55*4724848cSchristos long length, RC5_32_KEY *schedule, 56*4724848cSchristos unsigned char *ivec, int *num); 57*4724848cSchristos 58*4724848cSchristos # ifdef __cplusplus 59*4724848cSchristos } 60*4724848cSchristos # endif 61*4724848cSchristos # endif 62*4724848cSchristos 63*4724848cSchristos #endif 64