init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/Cmp/PkiHeader.cs

@@ -0,0 +1,165 @@
+using System;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Cmp;
+
+public class PkiHeader : Asn1Encodable
+{
+	public static readonly GeneralName NULL_NAME = new GeneralName(X509Name.GetInstance(new DerSequence()));
+
+	public static readonly int CMP_1999 = 1;
+
+	public static readonly int CMP_2000 = 2;
+
+	private readonly DerInteger pvno;
+
+	private readonly GeneralName sender;
+
+	private readonly GeneralName recipient;
+
+	private readonly DerGeneralizedTime messageTime;
+
+	private readonly AlgorithmIdentifier protectionAlg;
+
+	private readonly Asn1OctetString senderKID;
+
+	private readonly Asn1OctetString recipKID;
+
+	private readonly Asn1OctetString transactionID;
+
+	private readonly Asn1OctetString senderNonce;
+
+	private readonly Asn1OctetString recipNonce;
+
+	private readonly PkiFreeText freeText;
+
+	private readonly Asn1Sequence generalInfo;
+
+	public virtual DerInteger Pvno => pvno;
+
+	public virtual GeneralName Sender => sender;
+
+	public virtual GeneralName Recipient => recipient;
+
+	public virtual DerGeneralizedTime MessageTime => messageTime;
+
+	public virtual AlgorithmIdentifier ProtectionAlg => protectionAlg;
+
+	public virtual Asn1OctetString SenderKID => senderKID;
+
+	public virtual Asn1OctetString RecipKID => recipKID;
+
+	public virtual Asn1OctetString TransactionID => transactionID;
+
+	public virtual Asn1OctetString SenderNonce => senderNonce;
+
+	public virtual Asn1OctetString RecipNonce => recipNonce;
+
+	public virtual PkiFreeText FreeText => freeText;
+
+	private PkiHeader(Asn1Sequence seq)
+	{
+		pvno = DerInteger.GetInstance(seq[0]);
+		sender = GeneralName.GetInstance(seq[1]);
+		recipient = GeneralName.GetInstance(seq[2]);
+		for (int i = 3; i < seq.Count; i++)
+		{
+			Asn1TaggedObject asn1TaggedObject = (Asn1TaggedObject)seq[i];
+			switch (asn1TaggedObject.TagNo)
+			{
+			case 0:
+				messageTime = DerGeneralizedTime.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 1:
+				protectionAlg = AlgorithmIdentifier.GetInstance(asn1TaggedObject, explicitly: true);
+				break;
+			case 2:
+				senderKID = Asn1OctetString.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 3:
+				recipKID = Asn1OctetString.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 4:
+				transactionID = Asn1OctetString.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 5:
+				senderNonce = Asn1OctetString.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 6:
+				recipNonce = Asn1OctetString.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 7:
+				freeText = PkiFreeText.GetInstance(asn1TaggedObject, isExplicit: true);
+				break;
+			case 8:
+				generalInfo = Asn1Sequence.GetInstance(asn1TaggedObject, explicitly: true);
+				break;
+			default:
+				throw new ArgumentException("unknown tag number: " + asn1TaggedObject.TagNo, "seq");
+			}
+		}
+	}
+
+	public static PkiHeader GetInstance(object obj)
+	{
+		if (obj is PkiHeader)
+		{
+			return (PkiHeader)obj;
+		}
+		if (obj is Asn1Sequence)
+		{
+			return new PkiHeader((Asn1Sequence)obj);
+		}
+		throw new ArgumentException("Invalid object: " + Platform.GetTypeName(obj), "obj");
+	}
+
+	public PkiHeader(int pvno, GeneralName sender, GeneralName recipient)
+		: this(new DerInteger(pvno), sender, recipient)
+	{
+	}
+
+	private PkiHeader(DerInteger pvno, GeneralName sender, GeneralName recipient)
+	{
+		this.pvno = pvno;
+		this.sender = sender;
+		this.recipient = recipient;
+	}
+
+	public virtual InfoTypeAndValue[] GetGeneralInfo()
+	{
+		if (generalInfo == null)
+		{
+			return null;
+		}
+		InfoTypeAndValue[] array = new InfoTypeAndValue[generalInfo.Count];
+		for (int i = 0; i < array.Length; i++)
+		{
+			array[i] = InfoTypeAndValue.GetInstance(generalInfo[i]);
+		}
+		return array;
+	}
+
+	public override Asn1Object ToAsn1Object()
+	{
+		Asn1EncodableVector v = new Asn1EncodableVector(pvno, sender, recipient);
+		AddOptional(v, 0, messageTime);
+		AddOptional(v, 1, protectionAlg);
+		AddOptional(v, 2, senderKID);
+		AddOptional(v, 3, recipKID);
+		AddOptional(v, 4, transactionID);
+		AddOptional(v, 5, senderNonce);
+		AddOptional(v, 6, recipNonce);
+		AddOptional(v, 7, freeText);
+		AddOptional(v, 8, generalInfo);
+		return new DerSequence(v);
+	}
+
+	private static void AddOptional(Asn1EncodableVector v, int tagNo, Asn1Encodable obj)
+	{
+		if (obj != null)
+		{
+			v.Add(new DerTaggedObject(explicitly: true, tagNo, obj));
+		}
+	}
+}