diff --git a/ArcFormats/KiriKiri/KiriKiriCx.cs b/ArcFormats/KiriKiri/KiriKiriCx.cs
index 7b0d9712..ac91ea4c 100644
--- a/ArcFormats/KiriKiri/KiriKiriCx.cs
+++ b/ArcFormats/KiriKiri/KiriKiriCx.cs
@@ -163,6 +163,11 @@ namespace GameRes.Formats.KiriKiri
         }
 
         public override void Decrypt (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
+        {
+            CxDecryptCore (entry, offset, buffer, pos, count);
+        }
+
+        protected void CxDecryptCore (Xp3Entry entry, long offset, byte[] buffer, int pos, int count)
         {
             uint key = entry.Hash;
             uint base_offset = GetBaseOffset (key);
@@ -204,7 +209,7 @@ namespace GameRes.Formats.KiriKiri
 
         public override void Encrypt (Xp3Entry entry, long offset, byte[] values, int pos, int count)
         {
-            Decrypt (entry, offset, values, pos, count);
+            CxDecryptCore (entry, offset, values, pos, count);
         }
 
         protected Tuple<uint, uint> ExecuteXCode (uint hash)