cryb-to/include/cryb/des.h

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/*-
* Copyright (c) 2015-2016 Dag-Erling Smørgrav
* All rights reserved.
*
* 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 above 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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.
*/
#ifndef CRYB_DES_H_INCLUDED
#define CRYB_DES_H_INCLUDED
#ifndef CRYB_TO
#include <cryb/to.h>
#endif
#include <cryb/cipher.h>
CRYB_BEGIN
#define DES_BLOCK_LEN 8
#define des_cipher cryb_des_cipher
#define des_ctx cryb_des_ctx
#define des_init cryb_des_init
#define des_keystream cryb_des_keystream
#define des_encrypt cryb_des_encrypt
#define des_decrypt cryb_des_decrypt
#define des_finish cryb_des_finish
extern cipher_algorithm des_cipher;
typedef struct {
uint32_t sk[32];
} des_ctx;
void des_init(des_ctx *, cipher_mode mode, const uint8_t *, size_t);
size_t des_encrypt(des_ctx *, const void *, uint8_t *, size_t);
size_t des_decrypt(des_ctx *, const uint8_t *, void *, size_t);
void des_finish(des_ctx *);
CRYB_END
#endif