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/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape security libraries.
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1994-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 *
 */
#ifndef _SECPKCS5_H_
#define _SECPKCS5_H_
#include "seccomon.h"
#include "secmodt.h"

/* used for V2 PKCS 12 Draft Spec */
typedef enum {
    pbeBitGenIDNull = 0,
    pbeBitGenCipherKey = 0x01,
    pbeBitGenCipherIV = 0x02,
    pbeBitGenIntegrityKey = 0x03
} PBEBitGenID;

typedef struct PBEBitGenContextStr PBEBitGenContext;

SEC_BEGIN_PROTOS

SECAlgorithmID *
SEC_PKCS5CreateAlgorithmID(SECOidTag algorithm, SECItem *salt, int iteration);

/* Get the initialization vector.  The password is passed in, hashing
 * is performed, and the initialization vector is returned.
 *  algid is a pointer to a PBE algorithm ID
 *  pwitem is the password
 * If an error occurs or the algorithm id is not a PBE algrithm,
 * NULL is returned.  Otherwise, the iv is returned in a secitem.
 */
SECItem *
SEC_PKCS5GetIV(SECAlgorithmID *algid, SECItem *pwitem, PRBool faulty3DES);

SECOidTag SEC_PKCS5GetCryptoAlgorithm(SECAlgorithmID *algid);
PRBool SEC_PKCS5IsAlgorithmPBEAlg(SECAlgorithmID *algid);
SECOidTag SEC_PKCS5GetPBEAlgorithm(SECOidTag algTag, int keyLen);
int SEC_PKCS5GetKeyLength(SECAlgorithmID *algid);

/**********************************************************************
 * Deprecated PBE fucntions.  Use the PBE functions in pk11func.h
 * instead.
 **********************************************************************/

PBEBitGenContext *
PBE_CreateContext(SECOidTag hashAlgorithm, PBEBitGenID bitGenPurpose,
        SECItem *pwitem, SECItem *salt, unsigned int bitsNeeded,
        unsigned int iterations);

void
PBE_DestroyContext(PBEBitGenContext *context);


SECItem *
PBE_GenerateBits(PBEBitGenContext *context);

SEC_END_PROTOS

#endif /* _SECPKS5_H_ */