diff --git a/dlsmk/src/lib.rs b/dlsmk/src/lib.rs
index 709b240..b3436bc 100644
--- a/dlsmk/src/lib.rs
+++ b/dlsmk/src/lib.rs
@@ -13,7 +13,7 @@
         let key = "wDp3/3NPEi+R0peokVv010GkDk1mRTp3tUB/lCEVRAA=";
         let key_buffer = base64::decode_config(key, base64::STANDARD).unwrap();
         let s = hex::encode(key_buffer.as_slice());
-        let key_string = hex::decode(format!("{}{:04x}{:02x}", s, 30, 5)).unwrap();
+        let key_string = hex::decode(format!("{}{:04x}{:02x}", s, 5, 3)).unwrap();
         println!(
             "key : {}",
             base64::encode_config(key_string, base64::URL_SAFE)
diff --git a/java/src/main/java/com/supwisdom/dlsmk/DLSMK.java b/java/src/main/java/com/supwisdom/dlsmk/DLSMK.java
index 9921c52..b4c63a7 100644
--- a/java/src/main/java/com/supwisdom/dlsmk/DLSMK.java
+++ b/java/src/main/java/com/supwisdom/dlsmk/DLSMK.java
@@ -25,7 +25,7 @@
 
     public static void main(String[] args) {
         System.setProperty("java.library.path" , ".");
-        String key = "wDp3_3NPEi-R0peokVv010GkDk1mRTp3tUB_lCEVRAAAHgU=";
+        String key = "wDp3_3NPEi-R0peokVv010GkDk1mRTp3tUB_lCEVRAAABQM";
 
         String qrcode = "Ntd0wHly2IiweNP61JiewTmZ27JM3Vs-vjZaz45Ly8FoE5mB8QfvJBNJOGYsDQsFBrJqutQxVnyGfWcCbocIbWe2MwOdnfjZLLjAMZKQe_cDKntkfU2rJIo93IyS4TdJ";