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71 lines
3 KiB
C
71 lines
3 KiB
C
/*-
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* Copyright (c) 2012 The University of Oslo
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* Copyright (c) 2012 Dag-Erling Smørgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef CRYB_DIGEST_H_INCLUDED
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#define CRYB_DIGEST_H_INCLUDED
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#define digest_ctx cryb_digest_ctx
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#define digest_init_func cryb_digest_init_func
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#define digest_update_func cryb_digest_update_func
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#define digest_final_func cryb_digest_final_func
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#define digest_complete_func cryb_digest_complete_func
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#define digest_algorithm cryb_digest_algorithm
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typedef void digest_ctx;
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typedef void (*digest_init_func)(digest_ctx *);
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typedef void (*digest_update_func)(digest_ctx *, const void *, size_t);
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typedef void (*digest_final_func)(digest_ctx *, uint8_t *);
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typedef int (*digest_complete_func)(const void *, size_t, uint8_t *);
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typedef struct {
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const char *name; /* algorithm name */
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size_t contextlen; /* size of context structure */
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size_t blocklen; /* block length */
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size_t digestlen; /* length of the digest */
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digest_init_func init; /* initialization method */
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digest_update_func update; /* update method */
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digest_final_func final; /* finalization method */
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digest_complete_func complete; /* one-shot method */
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} digest_algorithm;
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#define get_digest_algorithm cryb_get_digest_algorithm
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const digest_algorithm *get_digest_algorithm(const char *);
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#define digest_init(alg, ctx) \
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(alg)->init((ctx))
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#define digest_update(alg, ctx, buf, len) \
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(alg)->update((ctx), (buf), (len))
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#define digest_final(alg, ctx, md) \
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(alg)->final((ctx), (md))
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#define digest_complete(alg, buf, len, md) \
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(alg)->update((buf), (len), (md))
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#endif
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