// 
// Decompiled by Procyon v0.6.0
// 

package org.bouncycastle.asn1.x509;

import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.pkcs.IssuerAndSerialNumber;
import org.bouncycastle.asn1.ASN1Object;

public class PrivateKeyPossessionStatement extends ASN1Object
{
    private final IssuerAndSerialNumber signer;
    private final Certificate cert;
    
    public static PrivateKeyPossessionStatement getInstance(final Object o) {
        if (o instanceof PrivateKeyPossessionStatement) {
            return (PrivateKeyPossessionStatement)o;
        }
        if (o != null) {
            return new PrivateKeyPossessionStatement(ASN1Sequence.getInstance(o));
        }
        return null;
    }
    
    private PrivateKeyPossessionStatement(final ASN1Sequence asn1Sequence) {
        if (asn1Sequence.size() == 1) {
            this.signer = IssuerAndSerialNumber.getInstance(asn1Sequence.getObjectAt(0));
            this.cert = null;
        }
        else {
            if (asn1Sequence.size() != 2) {
                throw new IllegalArgumentException("unknown sequence in PrivateKeyStatement");
            }
            this.signer = IssuerAndSerialNumber.getInstance(asn1Sequence.getObjectAt(0));
            this.cert = Certificate.getInstance(asn1Sequence.getObjectAt(1));
        }
    }
    
    public PrivateKeyPossessionStatement(final IssuerAndSerialNumber signer) {
        this.signer = signer;
        this.cert = null;
    }
    
    public PrivateKeyPossessionStatement(final Certificate cert) {
        this.signer = new IssuerAndSerialNumber(cert.getIssuer(), cert.getSerialNumber().getValue());
        this.cert = cert;
    }
    
    public IssuerAndSerialNumber getSigner() {
        return this.signer;
    }
    
    public Certificate getCert() {
        return this.cert;
    }
    
    @Override
    public ASN1Primitive toASN1Primitive() {
        final ASN1EncodableVector asn1EncodableVector = new ASN1EncodableVector(2);
        asn1EncodableVector.add(this.signer);
        if (this.cert != null) {
            asn1EncodableVector.add(this.cert);
        }
        return new DERSequence(asn1EncodableVector);
    }
}