diff --git a/Chaos/Cipher/Block/Des/DesCrypt.hpp b/Chaos/Cipher/Block/Des/DesCrypt.hpp
index 924e38c..cf5bd97 100644
--- a/Chaos/Cipher/Block/Des/DesCrypt.hpp
+++ b/Chaos/Cipher/Block/Des/DesCrypt.hpp
@@ -216,6 +216,12 @@ public:
 
     DesCrypt() = delete;
 
+    DesCrypt(const DesCrypt & other) = delete;
+    DesCrypt(DesCrypt && other) = delete;
+
+    DesCrypt & operator=(const DesCrypt & other) = delete;
+    DesCrypt & operator=(DesCrypt && other) = delete;
+
     class Key
     {
         friend class DesCrypt;