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/* $OpenBSD: md5.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $ */
/*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*/
#ifndef _MD5_H_
#define _MD5_H_
#define MD5_BLOCK_LENGTH 64
#define MD5_DIGEST_LENGTH 16
#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
typedef struct MD5Context {
u_int32_t state[4]; /* state */
u_int64_t count; /* number of bits, mod 2^64 */
u_int8_t buffer[MD5_BLOCK_LENGTH]; /* input buffer */
} MD5_CTX;
__BEGIN_DECLS
void MD5Init(MD5_CTX *);
void MD5Update(MD5_CTX *, const u_int8_t *, size_t)
__attribute__((__bounded__(__string__,2,3)));
void MD5Pad(MD5_CTX *);
void MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *)
__attribute__((__bounded__(__minbytes__,1,MD5_DIGEST_LENGTH)));
void MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH])
__attribute__((__bounded__(__minbytes__,1,4)))
__attribute__((__bounded__(__minbytes__,2,MD5_BLOCK_LENGTH)));
char *MD5End(MD5_CTX *, char *)
__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
char *MD5File(const char *, char *)
__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
char *MD5FileChunk(const char *, char *, off_t, off_t)
__attribute__((__bounded__(__minbytes__,2,MD5_DIGEST_STRING_LENGTH)));
char *MD5Data(const u_int8_t *, size_t, char *)
__attribute__((__bounded__(__string__,1,2)))
__attribute__((__bounded__(__minbytes__,3,MD5_DIGEST_STRING_LENGTH)));
__END_DECLS
#endif /* _MD5_H_ */
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