1 files changed, 52 insertions, 0 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationKey.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationKey.java
new file mode 100644
index 000000000..b10593303
--- /dev/null
+++ b/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationKey.java
@@ -0,0 +1,52 @@
+package org.spongycastle.bcpg.sig;
+
+import org.spongycastle.bcpg.SignatureSubpacket;
+import org.spongycastle.bcpg.SignatureSubpacketTags;
+
+/**
+ * Represents revocation key OpenPGP signature sub packet.
+ */
+public class RevocationKey extends SignatureSubpacket
+{
+    // 1 octet of class, 
+    // 1 octet of public-key algorithm ID, 
+    // 20 octets of fingerprint
+    public RevocationKey(boolean isCritical, byte[] data)
+    {
+        super(SignatureSubpacketTags.REVOCATION_KEY, isCritical, data);
+    }
+
+    public RevocationKey(boolean isCritical, byte signatureClass, int keyAlgorithm,
+        byte[] fingerprint)
+    {
+        super(SignatureSubpacketTags.REVOCATION_KEY, isCritical, createData(signatureClass,
+            (byte)(keyAlgorithm & 0xff), fingerprint));
+    }
+
+    private static byte[] createData(byte signatureClass, byte keyAlgorithm, byte[] fingerprint)
+    {
+        byte[] data = new byte[2 + fingerprint.length];
+        data[0] = signatureClass;
+        data[1] = keyAlgorithm;
+        System.arraycopy(fingerprint, 0, data, 2, fingerprint.length);
+        return data;
+    }
+
+    public byte getSignatureClass()
+    {
+        return this.getData()[0];
+    }
+
+    public int getAlgorithm()
+    {
+        return this.getData()[1];
+    }
+
+    public byte[] getFingerprint()
+    {
+        byte[] data = this.getData();
+        byte[] fingerprint = new byte[data.length - 2];
+        System.arraycopy(data, 2, fingerprint, 0, fingerprint.length);
+        return fingerprint;
+    }
+}