1 files changed, 82 insertions, 0 deletions
diff --git a/crypto/src/asn1/x509/Attribute.cs b/crypto/src/asn1/x509/Attribute.cs
new file mode 100644
index 000000000..d26db93e9
--- /dev/null
+++ b/crypto/src/asn1/x509/Attribute.cs
@@ -0,0 +1,82 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+    public class AttributeX509
+        : Asn1Encodable
+    {
+        private readonly DerObjectIdentifier	attrType;
+        private readonly Asn1Set				attrValues;
+
+		/**
+         * return an Attr object from the given object.
+         *
+         * @param o the object we want converted.
+         * @exception ArgumentException if the object cannot be converted.
+         */
+        public static AttributeX509 GetInstance(
+            object obj)
+        {
+            if (obj == null || obj is AttributeX509)
+            {
+                return (AttributeX509) obj;
+            }
+
+			if (obj is Asn1Sequence)
+            {
+                return new AttributeX509((Asn1Sequence) obj);
+            }
+
+			throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+		}
+
+		private AttributeX509(
+            Asn1Sequence seq)
+        {
+			if (seq.Count != 2)
+				throw new ArgumentException("Bad sequence size: " + seq.Count);
+
+			attrType = DerObjectIdentifier.GetInstance(seq[0]);
+			attrValues = Asn1Set.GetInstance(seq[1]);
+        }
+
+		public AttributeX509(
+            DerObjectIdentifier	attrType,
+            Asn1Set				attrValues)
+        {
+            this.attrType = attrType;
+            this.attrValues = attrValues;
+        }
+
+		public DerObjectIdentifier AttrType
+		{
+			get { return attrType; }
+		}
+
+		public Asn1Encodable[] GetAttributeValues()
+		{
+			return attrValues.ToArray();
+		}
+
+		public Asn1Set AttrValues
+		{
+			get { return attrValues; }
+		}
+
+		/**
+         * Produce an object suitable for an Asn1OutputStream.
+         * <pre>
+         * Attr ::= Sequence {
+         *     attrType OBJECT IDENTIFIER,
+         *     attrValues Set OF AttributeValue
+         * }
+         * </pre>
+         */
+        public override Asn1Object ToAsn1Object()
+        {
+			return new DerSequence(attrType, attrValues);
+        }
+    }
+}