diff --git a/server/authentication.py b/server/authentication.py
index dbc5e17..7505ae2 100644
--- a/server/authentication.py
+++ b/server/authentication.py
@@ -13,7 +13,7 @@ from Crypto.PublicKey import RSA
 from Crypto.PublicKey.RSA import RsaKey
 
 auth_logger = logging.getLogger('AUTH APPLICATION ')
-auth_logger.root.setLevel(logging.INFO)
+auth_logger.setLevel(logging.INFO)
 
 class Authetication:
     ABSOLUTE_PATH = os.path.abspath(os.path.dirname(sys.argv[0]))
@@ -47,7 +47,6 @@ class Authetication:
 
         for user in data['user']:
             if username == user['username']:
-                b64pwd = b64encode(SHA256.new(password.encode('utf-8')).digest())
                 try:
                     b64pwd = b64encode(SHA256.new(password.encode('utf-8')).digest())
                     bcrypt_check(b64pwd, user['password'].encode('utf-8'))
@@ -121,7 +120,7 @@ class Authetication:
         with open(self.CONFIG_FILE_LOCATION) as json_file:
             data = json.load(json_file)
 
-        dictionary: dict
+        dictionary = dict()
 
         for user in data['user']:
             key = data['publicKey']
diff --git a/server/config_init.py b/server/config_init.py
index 8d19a03..598d0bb 100644
--- a/server/config_init.py
+++ b/server/config_init.py
@@ -14,7 +14,7 @@ def generatePrivateKeyForUser(auth: Authetication,username: str, user_passphrase
 
         private_key = RSA.generate(2048)
         public_key = private_key.publickey()
-        private_key_value = bytes.hex(private_key.exportKey('DER', passphrase=user_passphrase, pkcs=8, protection="scryptAndAES128-CBC"))
+        private_key_value = bytes.hex(private_key.exportKey('DER', passphrase=user_passphrase, pkcs=8))
         public_key_value = bytes.hex(public_key.exportKey('DER', pkcs=8))
 
         ##Save private key in separate file
diff --git a/server/executor.py b/server/executor.py
index 9bbf60f..b28379d 100644
--- a/server/executor.py
+++ b/server/executor.py
@@ -64,7 +64,7 @@ class Executor:
         strdirectory = strdirectory[:-1]
         return strdirectory
 
-    def putFileInCurrentDirectory(self, filename: str, content) -> str:
+    def putFileInCurrentDirectory(self, filename: str, content: bytes) -> str:
         filename = self.sanitizeFile(filename)
         currenctfile = os.path.join(self.currentDirectory, filename)
         f = open(currenctfile, "wb")
diff --git a/server/netwrapper.py b/server/netwrapper.py
index cae72f6..4eca973 100644
--- a/server/netwrapper.py
+++ b/server/netwrapper.py
@@ -36,8 +36,8 @@ class NetWrapper:
         cipher = PKCS1_OAEP.new(self.currentClientPublicKey)
         identMsg = json.dumps(
             {'type': 'IDY', 'source': self.network.own_addr,
-             'message': b64encode(cipher.encrypt(retmsg.encode('UTF-8')))}).decode(
-            'ASCII')
+             'message': b64encode(cipher.encrypt(retmsg.encode('UTF-8'))).decode('ASCII')}).encode(
+            'UTF-8')
         self.network.send_msg(self.clientAddr, identMsg)
 
     def sendMessage(self, message: bytes) -> None:
@@ -127,7 +127,12 @@ class NetWrapper:
 
     def recieveEncryptedMessage(self, msg: bytes) -> bytes:
         try:
-            b64 = json.loads(msg)
+            b64 = json.loads(msg.decode('UTF-8'))
+            while not (b64['source'] == self.clientAddr and b64['type'] == 'CMD'):
+                status, msg = self.network.receive_msg(blocking=True)
+                if not status:
+                    raise Exception('Network error during connection.')
+                b64 = json.loads(msg.decode('UTF-8'))
             retnonce = b64decode(b64['nonce'])
             retciphertext = b64decode(b64['message'])
             retcipher = ChaCha20.new(self.cipherkey, nonce=retnonce)