diff --git a/src/main/java/StreamAesUtils.java b/src/main/java/StreamAesUtils.java
index 38fa09d..14bf6bc 100644
--- a/src/main/java/StreamAesUtils.java
+++ b/src/main/java/StreamAesUtils.java
@@ -4,7 +4,6 @@ import java.util.HashMap;
 import java.util.logging.Logger;
 
 public class StreamAesUtils {
-    private static final Logger logger = Logger.getLogger(StreamAesUtils.class.getName());
 
     public static Aes generateFromExchangeKeyAndSuperSecretKey(String keyExchange, String superSecretKey) throws NoSuchAlgorithmException {
         HashMap<String, String> hashMap = new HashMap<>();
@@ -20,21 +19,21 @@ public class StreamAesUtils {
         if (!hashMap.containsKey("nonce")) {
             return null;
         }
-        logger.info("cipher=" + (hashMap.get("cipher")));
-        logger.info("username=" + (hashMap.get("username")));
-        logger.info("padding=" + (hashMap.get("padding")));
-        logger.info("algorithm=" + (hashMap.get("algorithm")));
-        logger.info("nonce=" + (hashMap.get("nonce")));
+        System.out.println("cipher=" + (hashMap.get("cipher")));
+        System.out.println("username=" + (hashMap.get("username")));
+        System.out.println("padding=" + (hashMap.get("padding")));
+        System.out.println("algorithm=" + (hashMap.get("algorithm")));
+        System.out.println("nonce=" + (hashMap.get("nonce")));
         return fromUserNonceSuperSecretKey(hashMap.get("username"), hashMap.get("nonce"), superSecretKey);
     }
 
     public static Aes fromUserNonceSuperSecretKey(String username, String nonce, String superSecretKey) throws NoSuchAlgorithmException {
         if (GenKey.generateDefaultUsername().equals(username)) {
-            logger.info("AES use User Password");
+            System.out.println("AES use User Password");
         } else if ("none".equals(username)) {
             superSecretKey = GenKey.generateDefaultPsw();
         } else {
-            logger.info("AES key-exchange unknown username");
+            System.out.println("AES key-exchange unknown username");
             return null;
         }
         byte[] md5 = md5Digest(nonce + ":" + superSecretKey);