1 files changed, 98 insertions, 0 deletions
diff --git a/crypto/src/asn1/x509/IssuerSerial.cs b/crypto/src/asn1/x509/IssuerSerial.cs
new file mode 100644
index 000000000..6a24e7333
--- /dev/null
+++ b/crypto/src/asn1/x509/IssuerSerial.cs
@@ -0,0 +1,98 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+    public class IssuerSerial
+        : Asn1Encodable
+    {
+        internal readonly GeneralNames	issuer;
+        internal readonly DerInteger	serial;
+        internal readonly DerBitString	issuerUid;
+
+		public static IssuerSerial GetInstance(
+            object obj)
+        {
+            if (obj == null || obj is IssuerSerial)
+            {
+                return (IssuerSerial) obj;
+            }
+
+			if (obj is Asn1Sequence)
+            {
+                return new IssuerSerial((Asn1Sequence) obj);
+            }
+
+			throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+		}
+
+        public static IssuerSerial GetInstance(
+            Asn1TaggedObject	obj,
+            bool				explicitly)
+        {
+            return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+        }
+
+		private IssuerSerial(
+            Asn1Sequence seq)
+        {
+			if (seq.Count != 2 && seq.Count != 3)
+			{
+				throw new ArgumentException("Bad sequence size: " + seq.Count);
+			}
+
+			issuer = GeneralNames.GetInstance(seq[0]);
+			serial = DerInteger.GetInstance(seq[1]);
+
+			if (seq.Count == 3)
+            {
+				issuerUid = DerBitString.GetInstance(seq[2]);
+			}
+        }
+
+		public IssuerSerial(
+			GeneralNames	issuer,
+			DerInteger		serial)
+		{
+			this.issuer = issuer;
+			this.serial = serial;
+		}
+
+		public GeneralNames Issuer
+		{
+			get { return issuer; }
+		}
+
+		public DerInteger Serial
+		{
+			get { return serial; }
+		}
+
+		public DerBitString IssuerUid
+		{
+			get { return issuerUid; }
+		}
+
+		/**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         *  IssuerSerial  ::=  Sequence {
+         *       issuer         GeneralNames,
+         *       serial         CertificateSerialNumber,
+         *       issuerUid      UniqueIdentifier OPTIONAL
+         *  }
+         * </pre>
+         */
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector(
+				issuer, serial);
+
+			if (issuerUid != null)
+			{
+				v.Add(issuerUid);
+			}
+
+			return new DerSequence(v);
+		}
+	}
+}