/*
 ***********************************************************************
 ** md5.h -- header file for implementation of MD5                    **
 ** RSA Data Security, Inc. MD5 Message-Digest Algorithm              **
 ** Created: 2/17/90 RLR                                              **
 ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version               **
 ** Revised (for MD5): RLR 4/27/91                                    **
 **   -- G modified to have y&~z instead of y&z                       **
 **   -- FF, GG, HH modified to add in last register done             **
 **   -- Access pattern: round 2 works mod 5, round 3 works mod 3     **
 **   -- distinct additive constant for each step                     **
 **   -- round 4 added, working mod 7                                 **
 ***********************************************************************
 */

/*
 ***********************************************************************
 ** 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	KRB5_RSA_MD5__
#define	KRB5_RSA_MD5__

/* Data structure for MD5 (Message-Digest) computation */
typedef struct {
  krb5_ui_4 i[2];			/* number of _bits_ handled mod 2^64 */
  krb5_ui_4 buf[4];			/* scratch buffer */
  unsigned char in[64];			/* input buffer */
  unsigned char digest[16];		/* actual digest after MD5Final call */
} MD5_CTX;

#if (defined(__STDC__) || defined(_WINDOWS)) && !defined(KRB5_NO_PROTOTYPES)
extern void MD5Init(MD5_CTX FAR *);
extern void MD5Update (MD5_CTX FAR *, unsigned char FAR *, unsigned int);
extern void MD5Final (MD5_CTX FAR *);
#else
extern void MD5Init();
extern void MD5Update ();
extern void MD5Final ();
#endif

#define	RSA_MD5_CKSUM_LENGTH		16
#define	RSA_MD5_DES_CKSUM_LENGTH	16
#define	RSA_MD5_DES_CONFOUND_LENGTH	8

extern krb5_checksum_entry
    rsa_md5_cksumtable_entry,
    rsa_md5_des_cksumtable_entry;

#endif /* KRB5_RSA_MD5__ */
