/*  $OpenBSD: md5.h,v 1.16 2004/06/22 01:57:30 jfb 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 {
    uint32_t state[4];         /* state */
    uint64_t count;            /* number of bits, mod 2^64 */
    uint8_t buffer[MD5_BLOCK_LENGTH];  /* input buffer */
} MD5_CTX;

void     MD5Init(MD5_CTX *);
void     MD5Update(MD5_CTX *, const uint8_t *, size_t);
void     MD5Pad(MD5_CTX *);
void     MD5Final(uint8_t [MD5_DIGEST_LENGTH], MD5_CTX *);
void     MD5Transform(uint32_t [4], const uint8_t [MD5_BLOCK_LENGTH]);

#endif /* _MD5_H_ */