init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Pkcs/EncryptedData.cs

@@ -0,0 +1,63 @@
+using System;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Pkcs;
+
+public class EncryptedData : Asn1Encodable
+{
+	private readonly Asn1Sequence data;
+
+	public DerObjectIdentifier ContentType => (DerObjectIdentifier)data[0];
+
+	public AlgorithmIdentifier EncryptionAlgorithm => AlgorithmIdentifier.GetInstance(data[1]);
+
+	public Asn1OctetString Content
+	{
+		get
+		{
+			if (data.Count == 3)
+			{
+				DerTaggedObject obj = (DerTaggedObject)data[2];
+				return Asn1OctetString.GetInstance(obj, isExplicit: false);
+			}
+			return null;
+		}
+	}
+
+	public static EncryptedData GetInstance(object obj)
+	{
+		if (obj is EncryptedData)
+		{
+			return (EncryptedData)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new EncryptedData((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Unknown object in factory: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	private EncryptedData(Asn1Sequence seq)
+	{
+		if (seq.Count != 2)
+		{
+			throw new ArgumentException("Wrong number of elements in sequence", "seq");
+		}
+		if (((DerInteger)seq[0]).Value.IntValue != 0)
+		{
+			throw new ArgumentException("sequence not version 0");
+		}
+		data = (Asn1Sequence)seq[1];
+	}
+
+	public EncryptedData(DerObjectIdentifier contentType, AlgorithmIdentifier encryptionAlgorithm, Asn1Encodable content)
+	{
+		data = new BerSequence(contentType, encryptionAlgorithm.ToAsn1Object(), new BerTaggedObject(explicitly: false, 0, content));
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		return new BerSequence(new DerInteger(0), data);
+	}
+}