1 files changed, 103 insertions, 0 deletions
diff --git a/crypto/src/asn1/cms/ecc/MQVuserKeyingMaterial.cs b/crypto/src/asn1/cms/ecc/MQVuserKeyingMaterial.cs
new file mode 100644
index 000000000..53c5c706b
--- /dev/null
+++ b/crypto/src/asn1/cms/ecc/MQVuserKeyingMaterial.cs
@@ -0,0 +1,103 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1.Cms.Ecc
+{
+	public class MQVuserKeyingMaterial
+		: Asn1Encodable
+	{
+		private OriginatorPublicKey	ephemeralPublicKey;
+		private Asn1OctetString		addedukm;
+
+		public MQVuserKeyingMaterial(
+			OriginatorPublicKey	ephemeralPublicKey,
+			Asn1OctetString		addedukm)
+		{
+			// TODO Check ephemeralPublicKey not null
+
+			this.ephemeralPublicKey = ephemeralPublicKey;
+			this.addedukm = addedukm;
+		}
+
+		private MQVuserKeyingMaterial(
+			Asn1Sequence seq)
+		{
+			// TODO Check seq has either 1 or 2 elements
+
+			this.ephemeralPublicKey = OriginatorPublicKey.GetInstance(seq[0]);
+
+			if (seq.Count > 1)
+			{
+				this.addedukm = Asn1OctetString.GetInstance(
+					(Asn1TaggedObject)seq[1], true);
+			}
+		}
+
+		/**
+		 * return an AuthEnvelopedData object from a tagged object.
+		 *
+		 * @param obj      the tagged object holding the object we want.
+		 * @param isExplicit true if the object is meant to be explicitly
+		 *                 tagged false otherwise.
+		 * @throws ArgumentException if the object held by the
+		 *                                  tagged object cannot be converted.
+		 */
+		public static MQVuserKeyingMaterial GetInstance(
+			Asn1TaggedObject	obj,
+			bool				isExplicit)
+		{
+			return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
+		}
+
+		/**
+		 * return an AuthEnvelopedData object from the given object.
+		 *
+		 * @param obj the object we want converted.
+		 * @throws ArgumentException if the object cannot be converted.
+		 */
+		public static MQVuserKeyingMaterial GetInstance(
+			object	obj)
+		{
+			if (obj == null || obj is MQVuserKeyingMaterial)
+			{
+				return (MQVuserKeyingMaterial)obj;
+			}
+
+			if (obj is Asn1Sequence)
+			{
+				return new MQVuserKeyingMaterial((Asn1Sequence)obj);
+			}
+
+			throw new ArgumentException("Invalid MQVuserKeyingMaterial: " + obj.GetType().Name);
+		}
+		
+		public OriginatorPublicKey EphemeralPublicKey
+		{
+			get { return ephemeralPublicKey; }
+		}
+
+		public Asn1OctetString AddedUkm
+		{
+			get { return addedukm; }
+		}
+
+		/**
+		* Produce an object suitable for an Asn1OutputStream.
+		* <pre>
+		* MQVuserKeyingMaterial ::= SEQUENCE {
+		*   ephemeralPublicKey OriginatorPublicKey,
+		*   addedukm [0] EXPLICIT UserKeyingMaterial OPTIONAL  }
+		* </pre>
+		*/
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector(ephemeralPublicKey);
+
+			if (addedukm != null)
+			{
+				v.Add(new DerTaggedObject(true, 0, addedukm));
+			}
+
+			return new DerSequence(v);
+		}
+	}
+}