Science & Engineering Research Support soCiety (SERSC)
To resolve security issues and management issues of different Certificate Authorities (CAs), this paper proposed a unified authentication scheme, which will make different Certificate Authorities (CAs) be uniformly authenticated. In addition, it showed the whole structure of the scheme, added an extensional registration number to certificates and designed unified authentication process for the scheme. The unified authentication process was modelled and simulated by Colored Petri Net (CPN) Tools and verified by analyzing the state space of CPN model. In conclusion, this paper provides a unified authentication service and confirms that the proposed scheme is totally controllable, realizable and feasible.