1 files changed, 51 insertions, 0 deletions
diff --git a/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationReason.java b/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationReason.java
new file mode 100644
index 000000000..33cf451d3
--- /dev/null
+++ b/libraries/spongycastle/pg/src/main/java/org/spongycastle/bcpg/sig/RevocationReason.java
@@ -0,0 +1,51 @@
+package org.spongycastle.bcpg.sig;
+
+import org.spongycastle.bcpg.SignatureSubpacket;
+import org.spongycastle.bcpg.SignatureSubpacketTags;
+import org.spongycastle.util.Strings;
+
+/**
+ * Represents revocation reason OpenPGP signature sub packet.
+ */
+public class RevocationReason extends SignatureSubpacket
+{
+    public RevocationReason(boolean isCritical, byte[] data)
+    {
+        super(SignatureSubpacketTags.REVOCATION_REASON, isCritical, data);
+    }
+
+    public RevocationReason(boolean isCritical, byte reason, String description)
+    {
+        super(SignatureSubpacketTags.REVOCATION_REASON, isCritical, createData(reason, description));
+    }
+
+    private static byte[] createData(byte reason, String description)
+    {
+        byte[] descriptionBytes = Strings.toUTF8ByteArray(description);
+        byte[] data = new byte[1 + descriptionBytes.length];
+
+        data[0] = reason;
+        System.arraycopy(descriptionBytes, 0, data, 1, descriptionBytes.length);
+
+        return data;
+    }
+
+    public byte getRevocationReason()
+    {
+        return getData()[0];
+    }
+
+    public String getRevocationDescription()
+    {
+        byte[] data = getData();
+        if (data.length == 1)
+        {
+            return "";
+        }
+
+        byte[] description = new byte[data.length - 1];
+        System.arraycopy(data, 1, description, 0, description.length);
+
+        return Strings.fromUTF8ByteArray(description);
+    }
+}