com.novosec.pkix.asn1.cmp.OOBCertHash.java Source code

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Here is the source code for com.novosec.pkix.asn1.cmp.OOBCertHash.java

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// 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.cmp;

import java.util.Enumeration;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DEREncodable;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import com.novosec.pkix.asn1.crmf.CertId;

/**
 * ASN.1 structure DER En/DeCoder.
 *
 * <pre>
 *   OOBCertHash ::= SEQUENCE {
 *       hashAlg     [0] AlgorithmIdentifier     OPTIONAL,
 *       certId      [1] CertId                  OPTIONAL,
 *       hashVal         BIT STRING                        -- hashVal is calculated over DER encoding of the subjectPublicKey field of the corresponding cert.
 *   }
 *
 * </pre>
 */
public class OOBCertHash implements DEREncodable {
    AlgorithmIdentifier hashAlg;
    CertId certId;
    DERBitString hashVal;

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

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

        throw new IllegalArgumentException("unknown object in factory");
    }

    public OOBCertHash(ASN1Sequence seq) {
        Enumeration e = seq.getObjects();

        while (e.hasMoreElements()) {
            Object obj = e.nextElement();

            if (obj instanceof ASN1TaggedObject) {
                ASN1TaggedObject tagObj = (ASN1TaggedObject) obj;

                switch (tagObj.getTagNo()) {
                case 0:
                    hashAlg = AlgorithmIdentifier.getInstance(tagObj.getObject());
                    break;
                case 1:
                    certId = CertId.getInstance(tagObj.getObject());
                    break;
                }
            } else {
                hashVal = DERBitString.getInstance(obj);

                break;
            }
        }
    }

    public OOBCertHash(DERBitString hashVal) {
        this.hashVal = hashVal;
    }

    public DERBitString getHashVal() {
        return hashVal;
    }

    public void setHashAlg(AlgorithmIdentifier hashAlg) {
        this.hashAlg = hashAlg;
    }

    public AlgorithmIdentifier getHashAlg() {
        return hashAlg;
    }

    public void setCertId(CertId certId) {
        this.certId = certId;
    }

    public CertId getCertId() {
        return certId;
    }

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

        if (hashAlg != null) {
            v.add(new DERTaggedObject(true, 0, hashAlg));
        }

        if (certId != null) {
            v.add(new DERTaggedObject(true, 1, certId));
        }

        v.add(hashVal);

        return new DERSequence(v);
    }

    public String toString() {
        String s = "OOBCertHash: ( ";

        if (this.getHashAlg() != null) {
            s += "hashAlg: " + this.getHashAlg() + ", ";
        }

        if (this.getCertId() != null) {
            s += "certId: " + this.getCertId() + ", ";
        }

        s += "hashVal: " + this.getHashVal();

        s += ")";

        return s;
    }
}