91 lines
2.2 KiB
C#
91 lines
2.2 KiB
C#
using System;
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namespace Org.BouncyCastle.Asn1.Cms
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{
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public class KeyAgreeRecipientIdentifier
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: Asn1Encodable
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{
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/**
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* return an KeyAgreeRecipientIdentifier object from a tagged object.
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*
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* @param obj the tagged object holding the object we want.
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* @param isExplicit true if the object is meant to be explicitly
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* tagged false otherwise.
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* @exception ArgumentException if the object held by the
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* tagged object cannot be converted.
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*/
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public static KeyAgreeRecipientIdentifier GetInstance(
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Asn1TaggedObject obj,
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bool isExplicit)
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{
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return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
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}
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/**
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* return an KeyAgreeRecipientIdentifier object from the given object.
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*
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* @param obj the object we want converted.
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* @exception ArgumentException if the object cannot be converted.
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*/
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public static KeyAgreeRecipientIdentifier GetInstance(
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object obj)
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{
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if (obj == null || obj is KeyAgreeRecipientIdentifier)
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{
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return (KeyAgreeRecipientIdentifier)obj;
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}
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if (obj is Asn1Sequence)
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{
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return new KeyAgreeRecipientIdentifier((Asn1Sequence)obj);
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}
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throw new ArgumentException("Invalid KeyAgreeRecipientIdentifier: " + obj.GetType().FullName, "obj");
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}
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private readonly IssuerAndSerialNumber issuerSerial;
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private const RecipientKeyIdentifier rKeyID = null;
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public KeyAgreeRecipientIdentifier(
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IssuerAndSerialNumber issuerSerial)
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{
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this.issuerSerial = issuerSerial;
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}
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private KeyAgreeRecipientIdentifier(
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Asn1Sequence seq)
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{
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this.issuerSerial = IssuerAndSerialNumber.GetInstance(seq);
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}
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public IssuerAndSerialNumber IssuerAndSerialNumber
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{
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get { return issuerSerial; }
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}
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public RecipientKeyIdentifier RKeyID
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{
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get { return rKeyID; }
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}
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/**
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* Produce an object suitable for an Asn1OutputStream.
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* <pre>
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* KeyAgreeRecipientIdentifier ::= CHOICE {
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* issuerAndSerialNumber IssuerAndSerialNumber,
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* rKeyId [0] IMPLICIT RecipientKeyIdentifier
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* }
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* </pre>
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*/
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public override Asn1Object ToAsn1Object()
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{
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if (issuerSerial != null)
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{
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return issuerSerial.ToAsn1Object();
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}
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return new DerTaggedObject(false, 0, rKeyID);
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}
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}
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}
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