def get_sp_cert_new(self):
cert = self.__sp.get('<STR_LIT>')<EOL>cert_file_name = self.__paths['<STR_LIT>'] + '<STR_LIT>'<EOL>if not cert and exists(cert_file_name):<EOL><INDENT>with open(cert_file_name) as f:<EOL><INDENT>cert = f.read()<EOL><DEDENT><DEDENT>return cert or None<EOL>
Returns the x509 public of the SP planned
to be used soon instead the other public cert

:returns: SP public cert new
:rtype: string or None