xbps/include/sha256.h
Juan RP 3905c2106c Properly build shared/static libxbps and utils.
xbps-fetch: added -v flag to see verbose messages in libfetch.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20091030111726-axf9paz2k01ntqzz
2009-10-30 12:17:26 +01:00

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C

/*
* Written by Aaron D. Gifford <me@aarongifford.com>
*
* Copyright 2000 Aaron D. Gifford. 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. Neither the name of the copyright holder nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``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(S) OR CONTRIBUTOR(S) 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 _SHA2_DIGEST_H_
#define _SHA2_DIGEST_H_
/*** SHA-256 Various Length Definitions ***********************/
#define SHA256_BLOCK_LENGTH 64
#define SHA256_DIGEST_LENGTH 32
#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
/*** SHA-256 Context Structures *******************************/
typedef struct _SHA256_CTX {
uint32_t state[8];
uint64_t bitcount;
uint8_t buffer[SHA256_BLOCK_LENGTH];
} SHA256_CTX;
int XBPS_SHA256_Init(SHA256_CTX *);
int XBPS_SHA256_Update(SHA256_CTX *, const uint8_t *, size_t);
char *XBPS_SHA256_End(SHA256_CTX *, uint8_t *);
#endif /* !_SHA2_DIGEST_H_ */