Use autogen code on the authenticator instead hardcoding requests

telethon/crypto/auth_key.py

@@ -18,5 +18,6 @@ class AuthKey:
         """Calculates the new nonce hash based on
            the current class fields' values
         """
+        new_nonce = new_nonce.to_bytes(32, 'little', signed=True)
         data = new_nonce + struct.pack('<BQ', number, self.aux_hash)
         return utils.calc_msg_key(data)

telethon/crypto/rsa.py

@@ -1,4 +1,5 @@
 import os
+import struct
 from hashlib import sha1
 try:
     import rsa
@@ -37,7 +38,7 @@ def _compute_fingerprint(key):
     n = TLObject.serialize_bytes(get_byte_array(key.n))
     e = TLObject.serialize_bytes(get_byte_array(key.e))
     # Telegram uses the last 8 bytes as the fingerprint
-    return sha1(n + e).digest()[-8:]
+    return struct.unpack('<q', sha1(n + e).digest()[-8:])[0]
 
 
 def add_key(pub):