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package org.bouncycastle.cert.cmp;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.cmp.CertConfirmContent;
import org.bouncycastle.asn1.cmp.CertStatus;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.operator.DefaultDigestAlgorithmIdentifierFinder;
import org.bouncycastle.operator.DigestAlgorithmIdentifierFinder;
import org.bouncycastle.operator.DigestCalculator;
import org.bouncycastle.operator.DigestCalculatorProvider;
import org.bouncycastle.operator.OperatorCreationException;
public class CertificateConfirmationContentBuilder
{
private DigestAlgorithmIdentifierFinder digestAlgFinder;
private List acceptedCerts = new ArrayList();
private List acceptedReqIds = new ArrayList();
public CertificateConfirmationContentBuilder()
{
this(new DefaultDigestAlgorithmIdentifierFinder());
}
public CertificateConfirmationContentBuilder(DigestAlgorithmIdentifierFinder digestAlgFinder)
{
this.digestAlgFinder = digestAlgFinder;
}
public CertificateConfirmationContentBuilder addAcceptedCertificate(X509CertificateHolder certHolder, BigInteger certReqID)
{
acceptedCerts.add(certHolder);
acceptedReqIds.add(certReqID);
return this;
}
public CertificateConfirmationContent build(DigestCalculatorProvider digesterProvider)
throws CMPException
{
ASN1EncodableVector v = new ASN1EncodableVector();
for (int i = 0; i != acceptedCerts.size(); i++)
{
X509CertificateHolder certHolder = (X509CertificateHolder)acceptedCerts.get(i);
BigInteger reqID = (BigInteger)acceptedReqIds.get(i);
AlgorithmIdentifier digAlg = digestAlgFinder.find(certHolder.toASN1Structure().getSignatureAlgorithm());
if (digAlg == null)
{
throw new CMPException("cannot find algorithm for digest from signature");
}
DigestCalculator digester;
try
{
digester = digesterProvider.get(digAlg);
}
catch (OperatorCreationException e)
{
throw new CMPException("unable to create digest: " + e.getMessage(), e);
}
CMPUtil.derEncodeToStream(certHolder.toASN1Structure(), digester.getOutputStream());
v.add(new CertStatus(digester.getDigest(), reqID));
}
return new CertificateConfirmationContent(CertConfirmContent.getInstance(new DERSequence(v)), digestAlgFinder);
}
}
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