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package org.spongycastle.asn1.ess;
import org.spongycastle.asn1.ASN1EncodableVector;
import org.spongycastle.asn1.ASN1Object;
import org.spongycastle.asn1.ASN1OctetString;
import org.spongycastle.asn1.ASN1Primitive;
import org.spongycastle.asn1.ASN1Sequence;
import org.spongycastle.asn1.DEROctetString;
import org.spongycastle.asn1.DERSequence;
import org.spongycastle.asn1.nist.NISTObjectIdentifiers;
import org.spongycastle.asn1.x509.AlgorithmIdentifier;
import org.spongycastle.asn1.x509.IssuerSerial;
public class ESSCertIDv2
extends ASN1Object
{
private AlgorithmIdentifier hashAlgorithm;
private byte[] certHash;
private IssuerSerial issuerSerial;
private static final AlgorithmIdentifier DEFAULT_ALG_ID = new AlgorithmIdentifier(NISTObjectIdentifiers.id_sha256);
public static ESSCertIDv2 getInstance(
Object o)
{
if (o instanceof ESSCertIDv2)
{
return (ESSCertIDv2) o;
}
else if (o != null)
{
return new ESSCertIDv2(ASN1Sequence.getInstance(o));
}
return null;
}
private ESSCertIDv2(
ASN1Sequence seq)
{
if (seq.size() > 3)
{
throw new IllegalArgumentException("Bad sequence size: " + seq.size());
}
int count = 0;
if (seq.getObjectAt(0) instanceof ASN1OctetString)
{
// Default value
this.hashAlgorithm = DEFAULT_ALG_ID;
}
else
{
this.hashAlgorithm = AlgorithmIdentifier.getInstance(seq.getObjectAt(count++).toASN1Primitive());
}
this.certHash = ASN1OctetString.getInstance(seq.getObjectAt(count++).toASN1Primitive()).getOctets();
if (seq.size() > count)
{
this.issuerSerial = IssuerSerial.getInstance(seq.getObjectAt(count));
}
}
public ESSCertIDv2(
byte[] certHash)
{
this(null, certHash, null);
}
public ESSCertIDv2(
AlgorithmIdentifier algId,
byte[] certHash)
{
this(algId, certHash, null);
}
public ESSCertIDv2(
byte[] certHash,
IssuerSerial issuerSerial)
{
this(null, certHash, issuerSerial);
}
public ESSCertIDv2(
AlgorithmIdentifier algId,
byte[] certHash,
IssuerSerial issuerSerial)
{
if (algId == null)
{
// Default value
this.hashAlgorithm = DEFAULT_ALG_ID;
}
else
{
this.hashAlgorithm = algId;
}
this.certHash = certHash;
this.issuerSerial = issuerSerial;
}
public AlgorithmIdentifier getHashAlgorithm()
{
return this.hashAlgorithm;
}
public byte[] getCertHash()
{
return certHash;
}
public IssuerSerial getIssuerSerial()
{
return issuerSerial;
}
/**
* <pre>
* ESSCertIDv2 ::= SEQUENCE {
* hashAlgorithm AlgorithmIdentifier
* DEFAULT {algorithm id-sha256},
* certHash Hash,
* issuerSerial IssuerSerial OPTIONAL
* }
*
* Hash ::= OCTET STRING
*
* IssuerSerial ::= SEQUENCE {
* issuer GeneralNames,
* serialNumber CertificateSerialNumber
* }
* </pre>
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
if (!hashAlgorithm.equals(DEFAULT_ALG_ID))
{
v.add(hashAlgorithm);
}
v.add(new DEROctetString(certHash).toASN1Primitive());
if (issuerSerial != null)
{
v.add(issuerSerial);
}
return new DERSequence(v);
}
}
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