1 files changed, 70 insertions, 0 deletions
diff --git a/Crypto/src/asn1/isismtt/x509/AdditionalInformationSyntax.cs b/Crypto/src/asn1/isismtt/x509/AdditionalInformationSyntax.cs
new file mode 100644
index 000000000..f81d459c6
--- /dev/null
+++ b/Crypto/src/asn1/isismtt/x509/AdditionalInformationSyntax.cs
@@ -0,0 +1,70 @@
+using System;
+
+using Org.BouncyCastle.Asn1.X500;
+
+namespace Org.BouncyCastle.Asn1.IsisMtt.X509
+{
+	/**
+	* Some other information of non-restrictive nature regarding the usage of this
+	* certificate.
+	* 
+	* <pre>
+	*    AdditionalInformationSyntax ::= DirectoryString (SIZE(1..2048))
+	* </pre>
+	*/
+	public class AdditionalInformationSyntax
+		: Asn1Encodable
+	{
+		private readonly DirectoryString information;
+
+		public static AdditionalInformationSyntax GetInstance(
+			object obj)
+		{
+			if (obj is AdditionalInformationSyntax)
+				return (AdditionalInformationSyntax) obj;
+
+			if (obj is IAsn1String)
+				return new AdditionalInformationSyntax(DirectoryString.GetInstance(obj));
+
+			throw new ArgumentException("Unknown object in GetInstance: " + obj.GetType().Name, "obj");
+		}
+
+		private AdditionalInformationSyntax(
+			DirectoryString information)
+		{
+			this.information = information;
+		}
+
+		/**
+		* Constructor from a given details.
+		*
+		* @param information The describtion of the information.
+		*/
+		public AdditionalInformationSyntax(
+			string information)
+		{
+			this.information = new DirectoryString(information);
+		}
+
+		public virtual DirectoryString Information
+		{
+			get { return information; }
+		}
+
+		/**
+		* Produce an object suitable for an Asn1OutputStream.
+		* <p/>
+		* Returns:
+		* <p/>
+		* <pre>
+		*   AdditionalInformationSyntax ::= DirectoryString (SIZE(1..2048))
+		* </pre>
+		*
+		* @return an Asn1Object
+		*/
+		public override Asn1Object ToAsn1Object()
+		{
+			return information.ToAsn1Object();
+		}
+	}
+}