1 files changed, 76 insertions, 0 deletions
diff --git a/crypto/src/x509/X509Attribute.cs b/crypto/src/x509/X509Attribute.cs
new file mode 100644
index 000000000..248d66cc4
--- /dev/null
+++ b/crypto/src/x509/X509Attribute.cs
@@ -0,0 +1,76 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.X509;
+
+namespace Org.BouncyCastle.X509
+{
+	/**
+	 * Class for carrying the values in an X.509 Attribute.
+	 */
+	public class X509Attribute
+		: Asn1Encodable
+	{
+		private readonly AttributeX509 attr;
+
+		/**
+		 * @param at an object representing an attribute.
+		 */
+		internal X509Attribute(
+			Asn1Encodable at)
+		{
+			this.attr = AttributeX509.GetInstance(at);
+		}
+
+		/**
+		 * Create an X.509 Attribute with the type given by the passed in oid and
+		 * the value represented by an ASN.1 Set containing value.
+		 *
+		 * @param oid type of the attribute
+		 * @param value value object to go into the atribute's value set.
+		 */
+		public X509Attribute(
+			string			oid,
+			Asn1Encodable	value)
+		{
+			this.attr = new AttributeX509(new DerObjectIdentifier(oid), new DerSet(value));
+		}
+
+		/**
+		 * Create an X.59 Attribute with the type given by the passed in oid and the
+		 * value represented by an ASN.1 Set containing the objects in value.
+		 *
+		 * @param oid type of the attribute
+		 * @param value vector of values to go in the attribute's value set.
+		 */
+		public X509Attribute(
+			string              oid,
+			Asn1EncodableVector value)
+		{
+			this.attr = new AttributeX509(new DerObjectIdentifier(oid), new DerSet(value));
+		}
+
+		public string Oid
+		{
+			get { return attr.AttrType.Id; }
+		}
+
+		public Asn1Encodable[] GetValues()
+		{
+			Asn1Set s = attr.AttrValues;
+			Asn1Encodable[] values = new Asn1Encodable[s.Count];
+
+			for (int i = 0; i != s.Count; i++)
+			{
+				values[i] = (Asn1Encodable)s[i];
+			}
+
+			return values;
+		}
+
+		public override Asn1Object ToAsn1Object()
+		{
+			return attr.ToAsn1Object();
+		}
+	}
+}