package org.bouncycastle.asn1.x509;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.x500.X500Name;
/**
* an X509Certificate structure.
* <pre>
* Certificate ::= SEQUENCE {
* tbsCertificate TBSCertificate,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING
* }
* </pre>
*/
public class Certificate
extends ASN1Object
{
ASN1Sequence seq;
TBSCertificate tbsCert;
AlgorithmIdentifier sigAlgId;
DERBitString sig;
public static Certificate getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(ASN1Sequence.getInstance(obj, explicit));
}
public static Certificate getInstance(
Object obj)
{
if (obj instanceof Certificate)
{
return (Certificate)obj;
}
else if (obj != null)
{
return new Certificate(ASN1Sequence.getInstance(obj));
}
return null;
}
private Certificate(
ASN1Sequence seq)
{
this.seq = seq;
//
// correct x509 certficate
//
if (seq.size() == 3)
{
tbsCert = TBSCertificate.getInstance(seq.getObjectAt(0));
sigAlgId = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
sig = DERBitString.getInstance(seq.getObjectAt(2));
}
else
{
throw new IllegalArgumentException("sequence wrong size for a certificate");
}
}
public TBSCertificate getTBSCertificate()
{
return tbsCert;
}
public ASN1Integer getVersion()
{
return tbsCert.getVersion();
}
public int getVersionNumber()
{
return tbsCert.getVersionNumber();
}
public ASN1Integer getSerialNumber()
{
return tbsCert.getSerialNumber();
}
public X500Name getIssuer()
{
return tbsCert.getIssuer();
}
public Time getStartDate()
{
return tbsCert.getStartDate();
}
public Time getEndDate()
{
return tbsCert.getEndDate();
}
public X500Name getSubject()
{
return tbsCert.getSubject();
}
public SubjectPublicKeyInfo getSubjectPublicKeyInfo()
{
return tbsCert.getSubjectPublicKeyInfo();
}
public AlgorithmIdentifier getSignatureAlgorithm()
{
return sigAlgId;
}
public DERBitString getSignature()
{
return sig;
}
public ASN1Primitive toASN1Primitive()
{
return seq;
}
}