/*
 *  digcalc.h
 *  webdavfs
 *
 *  Created by lutherj on Mon Oct 01 2001.
 *  Copyright (c) 2001 Apple Computer, Inc. All rights reserved.
 *
 */

/*
 * Copyright (C) The Internet Society (1999).  All Rights Reserved.
 * 
 * This document and translations of it may be copied and furnished to
 * others, and derivative works that comment on or otherwise explain it
 * or assist in its implementation may be prepared, copied, published
 * and distributed, in whole or in part, without restriction of any
 * kind, provided that the above copyright notice and this paragraph are
 * included on all such copies and derivative works.  However, this
 * document itself may not be modified in any way, such as by removing
 * the copyright notice or references to the Internet Society or other
 * Internet organizations, except as needed for the purpose of
 * developing Internet standards in which case the procedures for
 * copyrights defined in the Internet Standards process must be
 * followed, or as required to translate it into languages other than
 * English.
 * 
 * The limited permissions granted above are perpetual and will not be
 * revoked by the Internet Society or its successors or assigns.
 * 
 * This document and the information contained herein is provided on an
 * "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
 * TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
 * HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 */

#define HASHLEN 16
typedef char HASH[HASHLEN];
#define HASHHEXLEN 32
typedef char HASHHEX[HASHHEXLEN + 1];
#define IN
#define OUT


/*
 * calculate H(A1) as per HTTP Digest spec
 */
void DigestCalcHA1(
	IN char *pszAlg,
	IN char *pszUserName,
	IN char *pszRealm,
    IN char *pszPassword,
	IN char *pszNonce,
	IN char *pszCNonce,
    OUT HASHHEX SessionKey);


/*
 * calculate request-digest/response-digest as per HTTP Digest spec
 */
void DigestCalcResponse(
    IN HASHHEX HA1,			/* H(A1) */
    IN char *pszNonce,		/* nonce from server */
    IN char *pszNonceCount,	/* 8 hex digits */
    IN char *pszCNonce,		/* client nonce */
    IN char *pszQop,		/* qop-value: "", "auth", "auth-int" */
    IN char *pszMethod,		/* method from the request */
    IN char *pszDigestUri,	/* requested URL */
    IN HASHHEX HEntity,		/* H(entity body) if qop="auth-int" */
    OUT HASHHEX Response	/* request-digest or response-digest */
    );