init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Crmf/PopoSigningKeyInput.cs

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+using System;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Crmf;
+
+public class PopoSigningKeyInput : Asn1Encodable
+{
+	private readonly GeneralName sender;
+
+	private readonly PKMacValue publicKeyMac;
+
+	private readonly SubjectPublicKeyInfo publicKey;
+
+	public virtual GeneralName Sender => sender;
+
+	public virtual PKMacValue PublicKeyMac => publicKeyMac;
+
+	public virtual SubjectPublicKeyInfo PublicKey => publicKey;
+
+	private PopoSigningKeyInput(Asn1Sequence seq)
+	{
+		Asn1Encodable asn1Encodable = seq[0];
+		if (asn1Encodable is Asn1TaggedObject)
+		{
+			Asn1TaggedObject asn1TaggedObject = (Asn1TaggedObject)asn1Encodable;
+			if (asn1TaggedObject.TagNo != 0)
+			{
+				throw new ArgumentException("Unknown authInfo tag: " + asn1TaggedObject.TagNo, "seq");
+			}
+			sender = GeneralName.GetInstance(asn1TaggedObject.GetObject());
+		}
+		else
+		{
+			publicKeyMac = PKMacValue.GetInstance(asn1Encodable);
+		}
+		publicKey = SubjectPublicKeyInfo.GetInstance(seq[1]);
+	}
+
+	public static PopoSigningKeyInput GetInstance(object obj)
+	{
+		if (obj is PopoSigningKeyInput)
+		{
+			return (PopoSigningKeyInput)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new PopoSigningKeyInput((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	public PopoSigningKeyInput(GeneralName sender, SubjectPublicKeyInfo spki)
+	{
+		this.sender = sender;
+		publicKey = spki;
+	}
+
+	public PopoSigningKeyInput(PKMacValue pkmac, SubjectPublicKeyInfo spki)
+	{
+		publicKeyMac = pkmac;
+		publicKey = spki;
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
+		if (sender != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 0, sender));
+		}
+		else
+		{
+			asn1EncodableVector.Add(publicKeyMac);
+		}
+		asn1EncodableVector.Add(publicKey);
+		return new DerSequence(asn1EncodableVector);
+	}
+}