init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Cms/RecipientEncryptedKey.cs

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+using System;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Cms;
+
+public class RecipientEncryptedKey : Asn1Encodable
+{
+	private readonly KeyAgreeRecipientIdentifier identifier;
+
+	private readonly Asn1OctetString encryptedKey;
+
+	public KeyAgreeRecipientIdentifier Identifier => identifier;
+
+	public Asn1OctetString EncryptedKey => encryptedKey;
+
+	private RecipientEncryptedKey(Asn1Sequence seq)
+	{
+		identifier = KeyAgreeRecipientIdentifier.GetInstance(seq[0]);
+		encryptedKey = (Asn1OctetString)seq[1];
+	}
+
+	public static RecipientEncryptedKey GetInstance(Asn1TaggedObject obj, bool isExplicit)
+	{
+		return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
+	}
+
+	public static RecipientEncryptedKey GetInstance(object obj)
+	{
+		if (obj == null || obj is RecipientEncryptedKey)
+		{
+			return (RecipientEncryptedKey)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new RecipientEncryptedKey((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Invalid RecipientEncryptedKey: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	public RecipientEncryptedKey(KeyAgreeRecipientIdentifier id, Asn1OctetString encryptedKey)
+	{
+		identifier = id;
+		this.encryptedKey = encryptedKey;
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		return new DerSequence(identifier, encryptedKey);
+	}
+}