119 lines
2.7 KiB
C#
119 lines
2.7 KiB
C#
using System;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.Ocsp;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Math;
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using Org.BouncyCastle.Security;
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using Org.BouncyCastle.X509;
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namespace Org.BouncyCastle.Ocsp
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{
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public class CertificateID
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{
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public const string HashSha1 = "1.3.14.3.2.26";
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private readonly CertID id;
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public CertificateID(
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CertID id)
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{
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this.id = id;
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}
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/**
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* create from an issuer certificate and the serial number of the
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* certificate it signed.
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* @exception OcspException if any problems occur creating the id fields.
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*/
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public CertificateID(
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string hashAlgorithm,
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X509Certificate issuerCert,
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BigInteger number)
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{
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try
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{
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IDigest digest = DigestUtilities.GetDigest(hashAlgorithm);
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AlgorithmIdentifier hashAlg = new AlgorithmIdentifier(
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new DerObjectIdentifier(hashAlgorithm), DerNull.Instance);
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X509Name issuerName = PrincipalUtilities.GetSubjectX509Principal(issuerCert);
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byte[] encodedIssuerName = issuerName.GetEncoded();
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digest.BlockUpdate(encodedIssuerName, 0, encodedIssuerName.Length);
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byte[] hash = DigestUtilities.DoFinal(digest);
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Asn1OctetString issuerNameHash = new DerOctetString(hash);
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AsymmetricKeyParameter issuerKey = issuerCert.GetPublicKey();
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SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(issuerKey);
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byte[] encodedPublicKey = info.PublicKeyData.GetBytes();
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digest.BlockUpdate(encodedPublicKey, 0, encodedPublicKey.Length);
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hash = DigestUtilities.DoFinal(digest);
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Asn1OctetString issuerKeyHash = new DerOctetString(hash);
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DerInteger serialNumber = new DerInteger(number);
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this.id = new CertID(hashAlg, issuerNameHash, issuerKeyHash, serialNumber);
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}
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catch (Exception e)
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{
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throw new OcspException("problem creating ID: " + e, e);
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}
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}
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public string HashAlgOid
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{
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get { return id.HashAlgorithm.ObjectID.Id; }
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}
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public byte[] GetIssuerNameHash()
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{
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return id.IssuerNameHash.GetOctets();
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}
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public byte[] GetIssuerKeyHash()
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{
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return id.IssuerKeyHash.GetOctets();
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}
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/**
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* return the serial number for the certificate associated
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* with this request.
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*/
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public BigInteger SerialNumber
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{
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get { return id.SerialNumber.Value; }
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}
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public CertID ToAsn1Object()
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{
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return id;
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}
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public override bool Equals(
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object obj)
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{
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if (obj == this)
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return true;
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CertificateID other = obj as CertificateID;
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if (other == null)
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return false;
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return id.ToAsn1Object().Equals(other.id.ToAsn1Object());
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}
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public override int GetHashCode()
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{
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return id.ToAsn1Object().GetHashCode();
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}
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}
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}
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