package org.bouncycastle.asn1.ess;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.DigestInfo;
import org.bouncycastle.asn1.x509.IssuerSerial;
public class OtherCertID
extends ASN1Object
{
private ASN1Encodable otherCertHash;
private IssuerSerial issuerSerial;
public static OtherCertID getInstance(Object o)
{
if (o instanceof OtherCertID)
{
return (OtherCertID) o;
}
else if (o != null)
{
return new OtherCertID(ASN1Sequence.getInstance(o));
}
return null;
}
/**
* constructor
*/
private OtherCertID(ASN1Sequence seq)
{
if (seq.size() < 1 || seq.size() > 2)
{
throw new IllegalArgumentException("Bad sequence size: "
+ seq.size());
}
if (seq.getObjectAt(0).toASN1Primitive() instanceof ASN1OctetString)
{
otherCertHash = ASN1OctetString.getInstance(seq.getObjectAt(0));
}
else
{
otherCertHash = DigestInfo.getInstance(seq.getObjectAt(0));
}
if (seq.size() > 1)
{
issuerSerial = IssuerSerial.getInstance(seq.getObjectAt(1));
}
}
public OtherCertID(
AlgorithmIdentifier algId,
byte[] digest)
{
this.otherCertHash = new DigestInfo(algId, digest);
}
public OtherCertID(
AlgorithmIdentifier algId,
byte[] digest,
IssuerSerial issuerSerial)
{
this.otherCertHash = new DigestInfo(algId, digest);
this.issuerSerial = issuerSerial;
}
public AlgorithmIdentifier getAlgorithmHash()
{
if (otherCertHash.toASN1Primitive() instanceof ASN1OctetString)
{
// SHA-1
return new AlgorithmIdentifier("1.3.14.3.2.26");
}
else
{
return DigestInfo.getInstance(otherCertHash).getAlgorithmId();
}
}
public byte[] getCertHash()
{
if (otherCertHash.toASN1Primitive() instanceof ASN1OctetString)
{
// SHA-1
return ((ASN1OctetString)otherCertHash.toASN1Primitive()).getOctets();
}
else
{
return DigestInfo.getInstance(otherCertHash).getDigest();
}
}
public IssuerSerial getIssuerSerial()
{
return issuerSerial;
}
/**
* <pre>
* OtherCertID ::= SEQUENCE {
* otherCertHash OtherHash,
* issuerSerial IssuerSerial OPTIONAL }
*
* OtherHash ::= CHOICE {
* sha1Hash OCTET STRING,
* otherHash OtherHashAlgAndValue }
*
* OtherHashAlgAndValue ::= SEQUENCE {
* hashAlgorithm AlgorithmIdentifier,
* hashValue OCTET STRING }
*
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(otherCertHash);
if (issuerSerial != null)
{
v.add(issuerSerial);
}
return new DERSequence(v);
}
}