docs: def get_common_session_key_proof(self, session_key, salt, server_public, client_public):
          """M = H(H(N) XOR H(g) | H(U) | s | A | B | K)
  
          :param bytes session_key:
          :param int salt:
          :param int server_public:
          :param int client_public:
          :rtype: bytes
          """
          h = self.hash
          prove = h(
              h(self._prime) ^ h(self._gen),
              h(self._user),
              salt,
              client_public,
              server_public,
              session_key,
              as_bytes=True
          )
          return prove