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xsha1.h
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xsha1.h
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/* xsha1.c - wrapper for including suitable sha1 implementation
*
* Copyright (c) 1994-2015 Carnegie Mellon University. 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 "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef LIB_XSHA1_H
#define LIB_XSHA1_H
#include <config.h>
#include "lib/assert.h"
#ifdef HAVE_SSL
#include <openssl/sha.h>
#include <openssl/evp.h>
#ifndef SHA1_DIGEST_LENGTH
#define SHA1_DIGEST_LENGTH (SHA_DIGEST_LENGTH)
#endif
#define xsha256(d,l,h) assert(EVP_Digest(d, l, h, NULL, EVP_sha256(), NULL))
#define xsha1(d,l,h) assert(EVP_Digest(d, l, h, NULL, EVP_sha1(), NULL))
#define SHA1_CTX EVP_MD_CTX*
#define SHA1Init(c) assert((*c = EVP_MD_CTX_new()) \
&& EVP_DigestInit(*c, EVP_sha1()))
#define SHA1Update(c,d,l) EVP_DigestUpdate(*c, d, l)
#define SHA1Final(h,c) \
do { \
EVP_DigestFinal(*c, h, NULL); \
EVP_MD_CTX_free(*c); \
} while(0);
#else /* HAVE_SSL */
#include <stdint.h>
typedef uint32_t sha1_quadbyte; /* 4 byte type */
typedef uint8_t sha1_byte; /* single byte type */
#define SHA1_BLOCK_LENGTH 64
#define SHA1_DIGEST_LENGTH 20
#define SHA_DIGEST_LENGTH (SHA1_DIGEST_LENGTH)
/* The SHA1 structure: */
typedef struct _SHA1_CTX {
sha1_quadbyte state[5];
sha1_quadbyte count[2];
sha1_byte buffer[SHA1_BLOCK_LENGTH];
} SHA1_CTX;
int SHA1Init(SHA1_CTX* context);
int SHA1Update(SHA1_CTX *context, const void *data, unsigned int len);
int SHA1Final(sha1_byte digest[SHA1_DIGEST_LENGTH], SHA1_CTX *context);
unsigned char *xsha1(const unsigned char *buf, unsigned long len,
sha1_byte dest[SHA1_DIGEST_LENGTH]);
#endif /* HAVE_SSL */
#endif /* LIB_XSHA1_H */