47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* rc5.h */
|
|
/*
|
|
This file is part of the ARM-Crypto-Lib.
|
|
Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/* rc5.h a C implementation of RC5 for ARM microcontrollers
|
|
*
|
|
* author: Daniel Otte
|
|
* email: daniel.otte@rub.de
|
|
* license: GPLv3
|
|
*
|
|
* this implementation is limited to 64bit blocks and a maximum of 255 rounds
|
|
*
|
|
*/
|
|
#ifndef RC5_H_
|
|
#define RC5_H_
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <stdlib.h> /* malloc() & free() */
|
|
#include <string.h> /* memset() & memcpy() */
|
|
|
|
typedef struct rc5_ctx_st {
|
|
uint8_t rounds;
|
|
uint32_t *s;
|
|
}rc5_ctx_t;
|
|
|
|
void rc5_enc(void* buffer, const rc5_ctx_t* ctx);
|
|
void rc5_dec(void* buffer, const rc5_ctx_t* ctx);
|
|
void rc5_init(void* key, uint16_t keysize_b, uint8_t rounds, rc5_ctx_t* ctx);
|
|
void rc5_free(rc5_ctx_t* ctx);
|
|
|
|
#endif /*RC5_H_*/
|