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/* $Id: md5.h 4567 2001-02-24 08:10:16Z rra $
**
** RSA Data Security, Inc. MD5 Message-Digest Algorithm
**
** LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
** INCLUDING ALL IMPLIED WARRANTIES OF MER- CHANTABILITY AND FITNESS. IN
** NO EVENT SHALL LANDON CURT NOLL 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.
**
** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved.
**
** License to copy and use this software is granted provided that it is
** identified as the "RSA Data Security, Inc. MD5 Message-Digest
** Algorithm" in all material mentioning or referencing this software or
** this function.
**
** License is also granted to make and use derivative works provided that
** such works are identified as "derived from the RSA Data Security,
** Inc. MD5 Message-Digest Algorithm" in all material mentioning or
** referencing the derived work.
**
** RSA Data Security, Inc. makes no representations concerning either the
** merchantability of this software or the suitability of this software for
** any particular purpose. It is provided "as is" without express or
** implied warranty of any kind.
**
** These notices must be retained in any copies of any part of this
** documentation and/or software.
*/
#ifndef INN_MD5_H
#define INN_MD5_H 1
#include <inn/defines.h>
/* Make sure we have uint32_t. */
#include <sys/types.h>
#if INN_HAVE_INTTYPES_H
# include <inttypes.h>
#endif
/* SCO OpenServer gets int32_t from here. */
#if INN_HAVE_SYS_BITYPES_H
# include <sys/bitypes.h>
#endif
/* Bytes to process at once, defined by the algorithm. */
#define MD5_CHUNKSIZE (1 << 6)
#define MD5_CHUNKWORDS (MD5_CHUNKSIZE / sizeof(uint32_t))
/* Length of the digest, defined by the algorithm. */
#define MD5_DIGESTSIZE 16
#define MD5_DIGESTWORDS (MD5_DIGESTSIZE / sizeof(uint32_t))
BEGIN_DECLS
/* Data structure for MD5 message-digest computation. */
struct md5_context {
uint32_t count[2]; /* A 64-bit byte count. */
uint32_t buf[MD5_DIGESTWORDS]; /* Scratch buffer. */
union {
unsigned char byte[MD5_CHUNKSIZE]; /* Byte chunk buffer. */
uint32_t word[MD5_CHUNKWORDS]; /* Word chunk buffer. */
} in;
unsigned int datalen; /* Length of data in in. */
unsigned char digest[MD5_DIGESTSIZE]; /* Final digest. */
};
extern void md5_hash(const unsigned char *, size_t, unsigned char *);
extern void md5_init(struct md5_context *);
extern void md5_update(struct md5_context *, const unsigned char *, size_t);
extern void md5_final(struct md5_context *);
END_DECLS
#endif /* !INN_MD5_H */
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