61 lines
1.8 KiB
C#
61 lines
1.8 KiB
C#
using System;
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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.Cms;
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public class EncryptedContentInfo : Asn1Encodable
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{
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private DerObjectIdentifier contentType;
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private AlgorithmIdentifier contentEncryptionAlgorithm;
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private Asn1OctetString encryptedContent;
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public DerObjectIdentifier ContentType => contentType;
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public AlgorithmIdentifier ContentEncryptionAlgorithm => contentEncryptionAlgorithm;
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public Asn1OctetString EncryptedContent => encryptedContent;
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public EncryptedContentInfo(DerObjectIdentifier contentType, AlgorithmIdentifier contentEncryptionAlgorithm, Asn1OctetString encryptedContent)
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{
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this.contentType = contentType;
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this.contentEncryptionAlgorithm = contentEncryptionAlgorithm;
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this.encryptedContent = encryptedContent;
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}
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public EncryptedContentInfo(Asn1Sequence seq)
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{
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contentType = (DerObjectIdentifier)seq[0];
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contentEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
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if (seq.Count > 2)
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{
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encryptedContent = Asn1OctetString.GetInstance((Asn1TaggedObject)seq[2], isExplicit: false);
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}
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}
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public static EncryptedContentInfo GetInstance(object obj)
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{
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if (obj == null || obj is EncryptedContentInfo)
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{
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return (EncryptedContentInfo)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new EncryptedContentInfo((Asn1Sequence)obj);
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}
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throw new ArgumentException("Invalid EncryptedContentInfo: " + Platform.GetTypeName(obj));
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}
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public override Asn1Object ToAsn1Object()
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{
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Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(contentType, contentEncryptionAlgorithm);
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if (encryptedContent != null)
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{
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asn1EncodableVector.Add(new BerTaggedObject(explicitly: false, 0, encryptedContent));
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}
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return new BerSequence(asn1EncodableVector);
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}
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}
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