59 lines
2.0 KiB
C#
59 lines
2.0 KiB
C#
using System.Collections;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.Cmp;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Cms;
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using Org.BouncyCastle.Math;
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using Org.BouncyCastle.Security;
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using Org.BouncyCastle.Utilities;
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using Org.BouncyCastle.X509;
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namespace Org.BouncyCastle.Cmp;
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public class CertificateConfirmationContentBuilder
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{
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private static readonly DefaultSignatureAlgorithmIdentifierFinder sigAlgFinder = new DefaultSignatureAlgorithmIdentifierFinder();
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private readonly DefaultDigestAlgorithmIdentifierFinder digestAlgFinder;
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private readonly IList acceptedCerts = Platform.CreateArrayList();
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private readonly IList acceptedReqIds = Platform.CreateArrayList();
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public CertificateConfirmationContentBuilder()
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: this(new DefaultDigestAlgorithmIdentifierFinder())
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{
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}
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public CertificateConfirmationContentBuilder(DefaultDigestAlgorithmIdentifierFinder digestAlgFinder)
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{
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this.digestAlgFinder = digestAlgFinder;
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}
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public CertificateConfirmationContentBuilder AddAcceptedCertificate(X509Certificate certHolder, BigInteger certReqId)
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{
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acceptedCerts.Add(certHolder);
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acceptedReqIds.Add(certReqId);
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return this;
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}
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public CertificateConfirmationContent Build()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
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for (int i = 0; i != acceptedCerts.Count; i++)
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{
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X509Certificate x509Certificate = (X509Certificate)acceptedCerts[i];
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BigInteger certReqId = (BigInteger)acceptedReqIds[i];
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AlgorithmIdentifier sigAlgId = sigAlgFinder.Find(x509Certificate.SigAlgName);
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AlgorithmIdentifier algorithmIdentifier = digestAlgFinder.find(sigAlgId);
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if (algorithmIdentifier == null)
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{
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throw new CmpException("cannot find algorithm for digest from signature");
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}
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byte[] certHash = DigestUtilities.CalculateDigest(algorithmIdentifier.Algorithm, x509Certificate.GetEncoded());
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asn1EncodableVector.Add(new CertStatus(certHash, certReqId));
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}
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return new CertificateConfirmationContent(CertConfirmContent.GetInstance(new DerSequence(asn1EncodableVector)), digestAlgFinder);
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}
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}
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