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/* $OpenBSD: md4.h,v 1.13 2004/04/29 15:51:16 millert Exp $ */
/*
* This code implements the MD4 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.
* Todd C. Miller modified the MD5 code to do MD4 based on RFC 1186.
*
* 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 _MD4_H_
#define _MD4_H_
#define MD4_BLOCK_LENGTH 64
#define MD4_DIGEST_LENGTH 16
#define MD4_DIGEST_STRING_LENGTH (MD4_DIGEST_LENGTH * 2 + 1)
typedef struct MD4Context {
u_int32_t state[4]; /* state */
u_int64_t count; /* number of bits, mod 2^64 */
u_int8_t buffer[MD4_BLOCK_LENGTH]; /* input buffer */
} MD4_CTX;
#include <sys/cdefs.h>
__BEGIN_DECLS
void MD4Init(MD4_CTX *);
void MD4Update(MD4_CTX *, const u_int8_t *, size_t)
__attribute__((__bounded__(__string__,2,3)));
void MD4Final(u_int8_t [MD4_DIGEST_LENGTH], MD4_CTX *)
__attribute__((__bounded__(__minbytes__,1,MD4_DIGEST_LENGTH)));
void MD4Transform(u_int32_t [4], const u_int8_t [MD4_BLOCK_LENGTH])
__attribute__((__bounded__(__minbytes__,1,4)))
__attribute__((__bounded__(__minbytes__,2,MD4_BLOCK_LENGTH)));
char *MD4End(MD4_CTX *, char *)
__attribute__((__bounded__(__minbytes__,2,MD4_DIGEST_STRING_LENGTH)));
char *MD4File(char *, char *)
__attribute__((__bounded__(__minbytes__,2,MD4_DIGEST_STRING_LENGTH)));
char *MD4Data(const u_int8_t *, size_t, char *)
__attribute__((__bounded__(__string__,1,2)))
__attribute__((__bounded__(__minbytes__,3,MD4_DIGEST_STRING_LENGTH)));
__END_DECLS
#endif /* _MD4_H_ */
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