init commit

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

@@ -0,0 +1,61 @@
+using System;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.X509;
+
+public class PrivateKeyUsagePeriod : Asn1Encodable
+{
+	private DerGeneralizedTime _notBefore;
+
+	private DerGeneralizedTime _notAfter;
+
+	public DerGeneralizedTime NotBefore => _notBefore;
+
+	public DerGeneralizedTime NotAfter => _notAfter;
+
+	public static PrivateKeyUsagePeriod GetInstance(object obj)
+	{
+		if (obj is PrivateKeyUsagePeriod)
+		{
+			return (PrivateKeyUsagePeriod)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new PrivateKeyUsagePeriod((Asn1Sequence)obj);
+		}
+		if (obj is X509Extension)
+		{
+			return GetInstance(X509Extension.ConvertValueToObject((X509Extension)obj));
+		}
+		throw new ArgumentException("unknown object in GetInstance: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	private PrivateKeyUsagePeriod(Asn1Sequence seq)
+	{
+		foreach (Asn1TaggedObject item in seq)
+		{
+			if (item.TagNo == 0)
+			{
+				_notBefore = DerGeneralizedTime.GetInstance(item, isExplicit: false);
+			}
+			else if (item.TagNo == 1)
+			{
+				_notAfter = DerGeneralizedTime.GetInstance(item, isExplicit: false);
+			}
+		}
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector();
+		if (_notBefore != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 0, _notBefore));
+		}
+		if (_notAfter != null)
+		{
+			asn1EncodableVector.Add(new DerTaggedObject(explicitly: false, 1, _notAfter));
+		}
+		return new DerSequence(asn1EncodableVector);
+	}
+}