106 lines
2.3 KiB
C#
106 lines
2.3 KiB
C#
using System;
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using Org.BouncyCastle.Asn1.Nist;
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using Org.BouncyCastle.Asn1.X509;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Asn1.Ess;
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public class EssCertIDv2 : Asn1Encodable
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{
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private readonly AlgorithmIdentifier hashAlgorithm;
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private readonly byte[] certHash;
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private readonly IssuerSerial issuerSerial;
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private static readonly AlgorithmIdentifier DefaultAlgID = new AlgorithmIdentifier(NistObjectIdentifiers.IdSha256);
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public AlgorithmIdentifier HashAlgorithm => hashAlgorithm;
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public IssuerSerial IssuerSerial => issuerSerial;
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public static EssCertIDv2 GetInstance(object obj)
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{
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if (obj == null)
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{
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return null;
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}
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if (obj is EssCertIDv2 result)
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{
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return result;
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}
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return new EssCertIDv2(Asn1Sequence.GetInstance(obj));
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}
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private EssCertIDv2(Asn1Sequence seq)
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{
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if (seq.Count > 3)
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{
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throw new ArgumentException("Bad sequence size: " + seq.Count, "seq");
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}
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int num = 0;
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if (seq[0] is Asn1OctetString)
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{
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hashAlgorithm = DefaultAlgID;
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}
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else
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{
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hashAlgorithm = AlgorithmIdentifier.GetInstance(seq[num++].ToAsn1Object());
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}
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certHash = Asn1OctetString.GetInstance(seq[num++].ToAsn1Object()).GetOctets();
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if (seq.Count > num)
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{
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issuerSerial = IssuerSerial.GetInstance(Asn1Sequence.GetInstance(seq[num].ToAsn1Object()));
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}
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}
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public EssCertIDv2(byte[] certHash)
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: this(null, certHash, null)
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{
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}
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public EssCertIDv2(AlgorithmIdentifier algId, byte[] certHash)
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: this(algId, certHash, null)
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{
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}
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public EssCertIDv2(byte[] certHash, IssuerSerial issuerSerial)
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: this(null, certHash, issuerSerial)
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{
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}
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public EssCertIDv2(AlgorithmIdentifier algId, byte[] certHash, IssuerSerial issuerSerial)
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{
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if (algId == null)
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{
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hashAlgorithm = DefaultAlgID;
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}
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else
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{
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hashAlgorithm = algId;
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}
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this.certHash = certHash;
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this.issuerSerial = issuerSerial;
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}
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public byte[] GetCertHash()
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{
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return Arrays.Clone(certHash);
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}
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public override Asn1Object ToAsn1Object()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
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if (!hashAlgorithm.Equals(DefaultAlgID))
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{
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asn1EncodableVector.Add(hashAlgorithm);
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}
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asn1EncodableVector.Add(new DerOctetString(certHash).ToAsn1Object());
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if (issuerSerial != null)
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{
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asn1EncodableVector.Add(issuerSerial);
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}
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return new DerSequence(asn1EncodableVector);
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}
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}
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