cryb-to/include/cryb/digest.h
Dag-Erling Smørgrav b0ff5af2ba Clean up headers and typedefs.
Fix context length in the algorithm descriptors.
Expose the block length and include it in the algorithm descriptors.
Complete the list of available digest algorithms.
2014-07-10 18:09:47 +00:00

73 lines
3 KiB
C

/*-
* Copyright (c) 2012 The University of Oslo
* Copyright (c) 2012 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.
*
* $Cryb$
*/
#ifndef CRYB_DIGEST_H_INCLUDED
#define CRYB_DIGEST_H_INCLUDED
#define digest_ctx cryb_digest_ctx
#define digest_init_func cryb_digest_init_func
#define digest_update_func cryb_digest_update_func
#define digest_final_func cryb_digest_final_func
#define digest_complete_func cryb_digest_complete_func
#define digest_algorithm cryb_digest_algorithm
typedef void digest_ctx;
typedef void (*digest_init_func)(digest_ctx *);
typedef void (*digest_update_func)(digest_ctx *, const void *, size_t);
typedef void (*digest_final_func)(digest_ctx *, void *);
typedef int (*digest_complete_func)(const void *, size_t, void *);
typedef struct {
const char *name; /* algorithm name */
size_t contextlen; /* size of context structure */
size_t blocklen; /* block length */
size_t digestlen; /* length of the digest */
digest_init_func init; /* initialization method */
digest_update_func update; /* update method */
digest_final_func final; /* finalization method */
digest_complete_func complete; /* one-shot method */
} digest_algorithm;
#define get_digest_algorithm cryb_get_digest_algorithm
const digest_algorithm *get_digest_algorithm(const char *);
#define digest_init(alg, ctx) \
(alg)->init((ctx))
#define digest_update(alg, ctx, buf, len) \
(alg)->update((ctx), (buf), (len))
#define digest_final(alg, ctx, md) \
(alg)->final((ctx), (md))
#define digest_complete(alg, buf, len, md) \
(alg)->update((buf), (len), (md))
#endif