cryb-to/include/cryb/rc4.h

59 lines
2.1 KiB
C

/*-
* 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_RC4_H_INCLUDED
#define CRYB_RC4_H_INCLUDED
#ifndef CRYB_TO
#include <cryb/to.h>
#endif
#include <cryb/cipher.h>
CRYB_BEGIN
#define rc4_digest cryb_rc4_digest
#define rc4_ctx cryb_rc4_ctx
#define rc4_init cryb_rc4_init
#define rc4_update cryb_rc4_update
#define rc4_finish cryb_rc4_finish
extern cipher_algorithm rc4_cipher;
typedef struct {
uint8_t s[256], i, j;
} rc4_ctx;
void rc4_init(rc4_ctx *, cipher_mode, const uint8_t *, size_t);
void rc4_update(rc4_ctx *, const void *, size_t, void *);
void rc4_finish(rc4_ctx *);
CRYB_END
#endif