111 lines
3.4 KiB
C#
111 lines
3.4 KiB
C#
using System;
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using System.Collections;
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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.Pkcs;
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public class SignerInfo : Asn1Encodable
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{
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private DerInteger version;
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private IssuerAndSerialNumber issuerAndSerialNumber;
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private AlgorithmIdentifier digAlgorithm;
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private Asn1Set authenticatedAttributes;
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private AlgorithmIdentifier digEncryptionAlgorithm;
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private Asn1OctetString encryptedDigest;
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private Asn1Set unauthenticatedAttributes;
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public DerInteger Version => version;
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public IssuerAndSerialNumber IssuerAndSerialNumber => issuerAndSerialNumber;
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public Asn1Set AuthenticatedAttributes => authenticatedAttributes;
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public AlgorithmIdentifier DigestAlgorithm => digAlgorithm;
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public Asn1OctetString EncryptedDigest => encryptedDigest;
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public AlgorithmIdentifier DigestEncryptionAlgorithm => digEncryptionAlgorithm;
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public Asn1Set UnauthenticatedAttributes => unauthenticatedAttributes;
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public static SignerInfo GetInstance(object obj)
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{
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if (obj is SignerInfo)
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{
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return (SignerInfo)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new SignerInfo((Asn1Sequence)obj);
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}
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throw new ArgumentException("Unknown object in factory: " + Platform.GetTypeName(obj), "obj");
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}
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public SignerInfo(DerInteger version, IssuerAndSerialNumber issuerAndSerialNumber, AlgorithmIdentifier digAlgorithm, Asn1Set authenticatedAttributes, AlgorithmIdentifier digEncryptionAlgorithm, Asn1OctetString encryptedDigest, Asn1Set unauthenticatedAttributes)
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{
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this.version = version;
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this.issuerAndSerialNumber = issuerAndSerialNumber;
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this.digAlgorithm = digAlgorithm;
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this.authenticatedAttributes = authenticatedAttributes;
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this.digEncryptionAlgorithm = digEncryptionAlgorithm;
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this.encryptedDigest = encryptedDigest;
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this.unauthenticatedAttributes = unauthenticatedAttributes;
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}
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public SignerInfo(Asn1Sequence seq)
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{
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IEnumerator enumerator = seq.GetEnumerator();
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enumerator.MoveNext();
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version = (DerInteger)enumerator.Current;
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enumerator.MoveNext();
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issuerAndSerialNumber = IssuerAndSerialNumber.GetInstance(enumerator.Current);
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enumerator.MoveNext();
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digAlgorithm = AlgorithmIdentifier.GetInstance(enumerator.Current);
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enumerator.MoveNext();
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object current = enumerator.Current;
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if (current is Asn1TaggedObject)
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{
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authenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject)current, explicitly: false);
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enumerator.MoveNext();
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digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(enumerator.Current);
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}
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else
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{
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authenticatedAttributes = null;
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digEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(current);
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}
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enumerator.MoveNext();
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encryptedDigest = Asn1OctetString.GetInstance(enumerator.Current);
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if (enumerator.MoveNext())
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{
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unauthenticatedAttributes = Asn1Set.GetInstance((Asn1TaggedObject)enumerator.Current, explicitly: false);
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}
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else
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{
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unauthenticatedAttributes = null;
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}
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}
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public override Asn1Object ToAsn1Object()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(version, issuerAndSerialNumber, digAlgorithm);
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if (authenticatedAttributes != null)
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{
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asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 0, authenticatedAttributes));
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}
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asn1EncodableVector.Add(digEncryptionAlgorithm, encryptedDigest);
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if (unauthenticatedAttributes != null)
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{
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asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 1, unauthenticatedAttributes));
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}
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return new DerSequence(asn1EncodableVector);
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}
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}
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