diff --git a/libraries/Cipher/CrazyCrypt1.class.php b/libraries/Cipher/CrazyCrypt1.class.php
index fb0872a4..75a87c60 100644
--- a/libraries/Cipher/CrazyCrypt1.class.php
+++ b/libraries/Cipher/CrazyCrypt1.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-04-03 14:55:38
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-04-03 17:17:06
+ * @Last Modified time: 2016-04-05 14:09:59
  */
 
 namespace Cipher;
@@ -15,7 +15,7 @@ class CrazyCrypt1 implements EncryptInterface
      *
      * https://github.com/ST-DDT/CrazyLogin/blob/master/php/Encryptors/CrazyCrypt1.php
      */
-    public function encrypt($raw_passwd, $salt = "") {
+    public static function encrypt($raw_passwd, $salt = "") {
         // salt is username
         $text = "ÜÄaeut//&/=I " . $raw_passwd . "7421€547" . $salt . "__+IÄIH§%NK " . $raw_passwd;
         $t1 = unpack("H*", $text);
diff --git a/libraries/Cipher/EncryptInterface.class.php b/libraries/Cipher/EncryptInterface.class.php
index 974c8195..83922afd 100644
--- a/libraries/Cipher/EncryptInterface.class.php
+++ b/libraries/Cipher/EncryptInterface.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-04-03 14:43:46
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-04-03 17:17:06
+ * @Last Modified time: 2016-04-05 14:09:53
  */
 
 namespace Cipher;
@@ -17,5 +17,5 @@ interface EncryptInterface
      * @param  string $salt
      * @return string, ecrypted password
      */
-    public function encrypt($raw_passwd, $salt = "");
+    public static function encrypt($raw_passwd, $salt = "");
 }
diff --git a/libraries/Cipher/MD5.class.php b/libraries/Cipher/MD5.class.php
index 42195281..c26f7bca 100644
--- a/libraries/Cipher/MD5.class.php
+++ b/libraries/Cipher/MD5.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-04-03 14:53:42
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-04-03 17:17:06
+ * @Last Modified time: 2016-04-05 14:09:57
  */
 
 namespace Cipher;
@@ -13,7 +13,7 @@ class MD5 implements EncryptInterface
     /**
      * Once MD5 encrypt
      */
-    public function encrypt($raw_passwd, $salt = "") {
+    public static function encrypt($raw_passwd, $salt = "") {
         $encrypt = md5($raw_passwd);
         return $encrypt;
     }
diff --git a/libraries/Cipher/SALTED2MD5.class.php b/libraries/Cipher/SALTED2MD5.class.php
index 4e12435e..1ceb8a30 100644
--- a/libraries/Cipher/SALTED2MD5.class.php
+++ b/libraries/Cipher/SALTED2MD5.class.php
@@ -3,14 +3,14 @@
  * @Author: printempw
  * @Date:   2016-04-03 14:58:11
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-04-03 17:17:07
+ * @Last Modified time: 2016-04-05 14:10:04
  */
 
 namespace Cipher;
 
 class SALTED2MD5 implements EncryptInterface
 {
-    public function encrypt($raw_passwd, $salt = "") {
+    public static function encrypt($raw_passwd, $salt = "") {
         $encrypt = md5(md5($raw_passwd).$salt);
         return $encrypt;
     }
diff --git a/libraries/Cipher/SHA256.class.php b/libraries/Cipher/SHA256.class.php
index e231347a..d49ca7f2 100644
--- a/libraries/Cipher/SHA256.class.php
+++ b/libraries/Cipher/SHA256.class.php
@@ -3,7 +3,7 @@
  * @Author: printempw
  * @Date:   2016-04-03 14:50:45
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-04-03 17:17:07
+ * @Last Modified time: 2016-04-05 14:10:07
  */
 
 namespace Cipher;
@@ -15,7 +15,7 @@ class SHA256 implements EncryptInterface
      *
      * @see http://pastebin.com/1wy9g2HT
      */
-    public function encrypt($raw_passwd, $salt = "") {
+    public static function encrypt($raw_passwd, $salt = "") {
         $encrypt = hash('sha256', hash('sha256', $raw_passwd).$salt);
         return $encrypt;
     }