def check_ticket(self, ticket):
        if self.trusted_cert_list:
            client_ticket = SfaTicket(string=ticket)
            client_ticket.verify_chain(self.trusted_cert_list)
        else:
           raise MissingTrustedRoots(self.config.get_trustedroots_dir())

        return True
Check if the tickt was signed by a trusted cert
dataset/ETHPy150Open fp7-ofelia/ocf/ofam/src/src/foam/sfa/trust/auth.py/Auth.check_ticket