package org.bouncycastle.asn1.x509;

import java.util.Enumeration;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;

The DigestInfo object.
DigestInfo::=SEQUENCE{
         digestAlgorithm  AlgorithmIdentifier,
         digest OCTET STRING }
/** * The DigestInfo object. * <pre> * DigestInfo::=SEQUENCE{ * digestAlgorithm AlgorithmIdentifier, * digest OCTET STRING } * </pre> */
public class DigestInfo extends ASN1Encodable { private byte[] digest; private AlgorithmIdentifier algId; public static DigestInfo getInstance( ASN1TaggedObject obj, boolean explicit) { return getInstance(ASN1Sequence.getInstance(obj, explicit)); } public static DigestInfo getInstance( Object obj) { if (obj instanceof DigestInfo) { return (DigestInfo)obj; } else if (obj instanceof ASN1Sequence) { return new DigestInfo((ASN1Sequence)obj); } throw new IllegalArgumentException("unknown object in factory: " + obj.getClass().getName()); } public DigestInfo( AlgorithmIdentifier algId, byte[] digest) { this.digest = digest; this.algId = algId; } public DigestInfo( ASN1Sequence obj) { Enumeration e = obj.getObjects(); algId = AlgorithmIdentifier.getInstance(e.nextElement()); digest = ASN1OctetString.getInstance(e.nextElement()).getOctets(); } public AlgorithmIdentifier getAlgorithmId() { return algId; } public byte[] getDigest() { return digest; } public DERObject toASN1Object() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(algId); v.add(new DEROctetString(digest)); return new DERSequence(v); } }