pbmparameter.java

一个免费的CA,基于EJB平台的,老师叫我们测试,现把之共享出来让大家参考

// CMP implementation copyright (c) 2003 NOVOSEC AG (http://www.novosec.com)
//
// Author: Maik Stohn
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this 
// software and associated documentation files (the "Software"), to deal in the Software 
// without restriction, including without limitation the rights to use, copy, modify, merge, 
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons 
// to whom the Software is furnished to do so, subject to the following conditions: 
//
// The above copyright notice and this permission notice shall be included in all copies or 
// substantial portions of the Software. 
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
// BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 

package com.novosec.pkix.asn1.crmf;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DEREncodable;
import org.bouncycastle.asn1.DERInteger;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;

/**
 * ASN.1 structure DER En/DeCoder.
 *
 * <pre>
 *  PBMParameter ::= SEQUENCE {
 *      salt                OCTET STRING,
 *      owf                 AlgorithmIdentifier,    -- AlgId for a One-Way Function (SHA-1 recommended)
 *      iterationCount      INTEGER,                -- number of times the OWF is applied
 *      mac                 AlgorithmIdentifier     -- the MAC AlgId (e.g., DES-MAC, Triple-DES-MAC [PKCS11],or HMAC [RFC2104, RFC2202])
 *  }
 *
 * </pre>
 */
public class PBMParameter implements DEREncodable
{
    DEROctetString      salt;
    AlgorithmIdentifier owf;
    DERInteger          iterationCount;
    AlgorithmIdentifier mac;

    public static PBMParameter getInstance( ASN1TaggedObject obj, boolean explicit )
    {
        return getInstance(ASN1Sequence.getInstance(obj, explicit));
    }

    public static PBMParameter getInstance( Object obj )
    {
        if (obj instanceof PBMParameter)
        {
            return (PBMParameter)obj;
        }
        else if (obj instanceof ASN1Sequence)
        {
            return new PBMParameter((ASN1Sequence)obj);
        }

        throw new IllegalArgumentException("unknown object in factory");
    }
	
    public PBMParameter( ASN1Sequence seq )
    {
      this.salt = (DEROctetString)seq.getObjectAt(0);
      this.owf = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
      this.iterationCount = DERInteger.getInstance(seq.getObjectAt(2));
      this.mac = AlgorithmIdentifier.getInstance(seq.getObjectAt(3));
    }

    public PBMParameter( DEROctetString salt, AlgorithmIdentifier owf, DERInteger iterationCount, AlgorithmIdentifier mac )
    {
      this.salt = salt;
      this.owf = owf;
      this.iterationCount = iterationCount;
      this.mac = mac;
    }

    public DEROctetString getSalt()
    {
        return salt;
    }

    public AlgorithmIdentifier getOwf()
    {
        return owf;
    }

    public DERInteger getIterationCount()
    {
        return iterationCount;
    }

    public AlgorithmIdentifier getMac()
    {
        return mac;
    }

    public DERObject getDERObject()
    {
        ASN1EncodableVector  v = new ASN1EncodableVector();

        v.add( salt );
        v.add( owf );
        v.add( iterationCount );
        v.add( mac );

        return new DERSequence(v);
    }

    public String toString()
    {
      return "PBMParameter: (salt = " + this.getSalt() + ", " +
                            "owf = " + this.getOwf() + ", " +
                            "iterationCount = " + this.getIterationCount() + ", " +
                            "mac = " + this.getMac() + ")";
    }
}