1 files changed, 59 insertions, 0 deletions
diff --git a/crypto/src/bcpg/sig/RevocationReason.cs b/crypto/src/bcpg/sig/RevocationReason.cs
new file mode 100644
index 000000000..98e9b0a3d
--- /dev/null
+++ b/crypto/src/bcpg/sig/RevocationReason.cs
@@ -0,0 +1,59 @@
+using System;
+using System.Text;
+
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Bcpg
+{
+    /// <summary>
+    /// Represents revocation reason OpenPGP signature sub packet.
+    /// </summary>
+    public class RevocationReason
+		: SignatureSubpacket
+    {
+        public RevocationReason(bool isCritical, byte[] data)
+            : base(SignatureSubpacketTag.RevocationReason, isCritical, data)
+        {
+        }
+
+		public RevocationReason(
+			bool				isCritical,
+			RevocationReasonTag	reason,
+			string				description)
+            : base(SignatureSubpacketTag.RevocationReason, isCritical, CreateData(reason, description))
+        {
+        }
+
+        private static byte[] CreateData(
+			RevocationReasonTag	reason,
+			string				description)
+        {
+            byte[] descriptionBytes = Strings.ToUtf8ByteArray(description);
+            byte[] data = new byte[1 + descriptionBytes.Length];
+
+            data[0] = (byte)reason;
+            Array.Copy(descriptionBytes, 0, data, 1, descriptionBytes.Length);
+
+            return data;
+        }
+
+        public virtual RevocationReasonTag GetRevocationReason()
+        {
+            return (RevocationReasonTag)GetData()[0];
+        }
+
+        public virtual string GetRevocationDescription()
+        {
+            byte[] data = GetData();
+            if (data.Length == 1)
+            {
+                return string.Empty;
+            }
+
+            byte[] description = new byte[data.Length - 1];
+            Array.Copy(data, 1, description, 0, description.Length);
+
+            return Strings.FromUtf8ByteArray(description);
+        }
+    }
+}