diff --git a/server/netwrapper.py b/server/netwrapper.py
index 1fc6329..a572e31 100644
--- a/server/netwrapper.py
+++ b/server/netwrapper.py
@@ -55,18 +55,16 @@ class NetWrapper:
         self.clientAddr = header['source']
         self.currentUser = header['username']
         self.currentClientPublicKey = self.clientPublicKey[self.currentUser]
-        try:
-            if not self.verifyRSAHeaderSignature(b64decode(incommingJson['header']),
-                                                 b64decode(incommingJson['headersignature'])) or header[
-                'type'] != 'IDY':
-                raise Exception('Bad initial message')
-        except Exception:
+        if not self.verifyRSAHeaderSignature(b64decode(incommingJson['header']),
+                                             b64decode(incommingJson['headersignature'])) or header[
+            'type'] != 'IDY':
             raise Exception('Bad initial message')
         retheader, retheadersignature = self.signRSAHeader("IDY", {})
         dcryptedmsg = self.decryptRSAMessage(b64decode(incommingJson['message']))
         retmsg = self.encryptRSAMessage(dcryptedmsg)
         identMsg = json.dumps(
-            {'header': b64encode(retheader).decode('UTF-8'), 'headersignature': b64encode(retheadersignature).decode('UTF-8'),
+            {'header': b64encode(retheader).decode('UTF-8'),
+             'headersignature': b64encode(retheadersignature).decode('UTF-8'),
              'message': b64encode(retmsg).decode('UTF-8')}).encode(
             'UTF-8')
         self.network.send_msg(self.clientAddr, identMsg)
@@ -92,7 +90,7 @@ class NetWrapper:
     def keyExchange(self) -> None:
         dh = pyDH.DiffieHellman()
         mypubkey = self.encryptRSAMessage(str(dh.gen_public_key()).encode('UTF-8'))
-        header, headersignature = self.signRSAHeader("DH",{})
+        header, headersignature = self.signRSAHeader("DH", {})
         jsonmsg = json.dumps(
             {'header': b64encode(header).decode('UTF-8'), 'headersignature': b64encode(headersignature).decode('UTF-8'),
              'message': b64encode(mypubkey).decode('UTF-8')}).encode('UTF-8')