mirror of
https://github.com/cryb-to/cryb-to.git
synced 2024-12-21 03:51:08 +00:00
70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
/*-
|
|
* Copyright (c) 2015 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_CIPHER_H_INCLUDED
|
|
#define CRYB_CIPHER_H_INCLUDED
|
|
|
|
#define cipher_ctx cryb_cipher_ctx
|
|
#define cipher_init_func cryb_cipher_init_func
|
|
#define cipher_update_func cryb_cipher_update_func
|
|
#define cipher_finish_func cryb_cipher_finish_func
|
|
#define cipher_algorithm cryb_cipher_algorithm
|
|
|
|
typedef enum {
|
|
CIPHER_MODE_ENCRYPT = 0,
|
|
CIPHER_MODE_DECRYPT = 1,
|
|
} cipher_mode;
|
|
|
|
typedef void cipher_ctx;
|
|
typedef void (*cipher_init_func)(cipher_ctx *, cipher_mode, const uint8_t *, size_t);
|
|
typedef void (*cipher_update_func)(cipher_ctx *, const void *, size_t, void *);
|
|
typedef void (*cipher_finish_func)(cipher_ctx *);
|
|
|
|
typedef struct {
|
|
const char *name; /* algorithm name */
|
|
size_t contextlen; /* size of context structure */
|
|
size_t blocklen; /* block length */
|
|
size_t keylen; /* key length */
|
|
cipher_init_func init; /* initialization method */
|
|
cipher_update_func update; /* {enc,dec}ryption method */
|
|
cipher_finish_func finish; /* finalization method */
|
|
} cipher_algorithm;
|
|
|
|
#define get_cipher_algorithm cryb_get_cipher_algorithm
|
|
|
|
const cipher_algorithm *get_cipher_algorithm(const char *);
|
|
|
|
#define cipher_init(alg, ctx, mode, key, keylen) \
|
|
(alg)->init((ctx), (mode), (key), (keylen))
|
|
#define cipher_update(alg, ctx, in, len, out) \
|
|
(alg)->update((ctx), (in), (len), (out))
|
|
#define cipher_finish(alg, ctx) \
|
|
(alg)->finish((ctx))
|
|
|
|
#endif
|