init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/X509/Holder.cs

@@ -0,0 +1,137 @@
+using System;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.X509;
+
+public class Holder : Asn1Encodable
+{
+	internal readonly IssuerSerial baseCertificateID;
+
+	internal readonly GeneralNames entityName;
+
+	internal readonly ObjectDigestInfo objectDigestInfo;
+
+	private readonly int version;
+
+	public int Version => version;
+
+	public IssuerSerial BaseCertificateID => baseCertificateID;
+
+	public GeneralNames EntityName => entityName;
+
+	public ObjectDigestInfo ObjectDigestInfo => objectDigestInfo;
+
+	public static Holder GetInstance(object obj)
+	{
+		if (obj is Holder)
+		{
+			return (Holder)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new Holder((Asn1Sequence)obj);
+		}
+		if (obj is Asn1TaggedObject)
+		{
+			return new Holder((Asn1TaggedObject)obj);
+		}
+		throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	public Holder(Asn1TaggedObject tagObj)
+	{
+		switch (tagObj.TagNo)
+		{
+		case 0:
+			baseCertificateID = IssuerSerial.GetInstance(tagObj, explicitly: false);
+			break;
+		case 1:
+			entityName = GeneralNames.GetInstance(tagObj, explicitly: false);
+			break;
+		default:
+			throw new ArgumentException("unknown tag in Holder");
+		}
+		version = 0;
+	}
+
+	private Holder(Asn1Sequence seq)
+	{
+		if (seq.Count > 3)
+		{
+			throw new ArgumentException("Bad sequence size: " + seq.Count);
+		}
+		for (int i = 0; i != seq.Count; i++)
+		{
+			Asn1TaggedObject instance = Asn1TaggedObject.GetInstance(seq[i]);
+			switch (instance.TagNo)
+			{
+			case 0:
+				baseCertificateID = IssuerSerial.GetInstance(instance, explicitly: false);
+				break;
+			case 1:
+				entityName = GeneralNames.GetInstance(instance, explicitly: false);
+				break;
+			case 2:
+				objectDigestInfo = ObjectDigestInfo.GetInstance(instance, isExplicit: false);
+				break;
+			default:
+				throw new ArgumentException("unknown tag in Holder");
+			}
+		}
+		version = 1;
+	}
+
+	public Holder(IssuerSerial baseCertificateID)
+		: this(baseCertificateID, 1)
+	{
+	}
+
+	public Holder(IssuerSerial baseCertificateID, int version)
+	{
+		this.baseCertificateID = baseCertificateID;
+		this.version = version;
+	}
+
+	public Holder(GeneralNames entityName)
+		: this(entityName, 1)
+	{
+	}
+
+	public Holder(GeneralNames entityName, int version)
+	{
+		this.entityName = entityName;
+		this.version = version;
+	}
+
+	public Holder(ObjectDigestInfo objectDigestInfo)
+	{
+		this.objectDigestInfo = objectDigestInfo;
+		version = 1;
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		if (version == 1)
+		{
+			Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
+			if (baseCertificateID != null)
+			{
+				asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 0, baseCertificateID));
+			}
+			if (entityName != null)
+			{
+				asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 1, entityName));
+			}
+			if (objectDigestInfo != null)
+			{
+				asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 2, objectDigestInfo));
+			}
+			return new DerSequence(asn1EncodableVector);
+		}
+		if (entityName != null)
+		{
+			return new DerTaggedObject(explicitly: false, 1, entityName);
+		}
+		return new DerTaggedObject(explicitly: false, 0, baseCertificateID);
+	}
+}