diff --git a/Crypto/src/bcpg/sig/RevocationKey.cs b/Crypto/src/bcpg/sig/RevocationKey.cs
new file mode 100644
index 000000000..5e388246b
--- /dev/null
+++ b/Crypto/src/bcpg/sig/RevocationKey.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Org.BouncyCastle.Bcpg
+{
+ /// <summary>
+ /// Represents revocation key OpenPGP signature sub packet.
+ /// </summary>
+ public class RevocationKey
+ : SignatureSubpacket
+ {
+ // 1 octet of class,
+ // 1 octet of public-key algorithm ID,
+ // 20 octets of fingerprint
+ public RevocationKey(
+ bool isCritical,
+ byte[] data)
+ : base(SignatureSubpacketTag.RevocationKey, isCritical, data)
+ {
+ }
+
+ public RevocationKey(
+ bool isCritical,
+ RevocationKeyTag signatureClass,
+ PublicKeyAlgorithmTag keyAlgorithm,
+ byte[] fingerprint)
+ : base(SignatureSubpacketTag.RevocationKey, isCritical,
+ CreateData(signatureClass, keyAlgorithm, fingerprint))
+ {
+ }
+
+ private static byte[] CreateData(
+ RevocationKeyTag signatureClass,
+ PublicKeyAlgorithmTag keyAlgorithm,
+ byte[] fingerprint)
+ {
+ byte[] data = new byte[2 + fingerprint.Length];
+ data[0] = (byte)signatureClass;
+ data[1] = (byte)keyAlgorithm;
+ Array.Copy(fingerprint, 0, data, 2, fingerprint.Length);
+ return data;
+ }
+
+ public virtual RevocationKeyTag SignatureClass
+ {
+ get { return (RevocationKeyTag)this.GetData()[0]; }
+ }
+
+ public virtual PublicKeyAlgorithmTag Algorithm
+ {
+ get { return (PublicKeyAlgorithmTag)this.GetData()[1]; }
+ }
+
+ public virtual byte[] GetFingerprint()
+ {
+ byte[] data = this.GetData();
+ byte[] fingerprint = new byte[data.Length - 2];
+ Array.Copy(data, 2, fingerprint, 0, fingerprint.Length);
+ return fingerprint;
+ }
+ }
+}
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