A design of authentication architecture for service safety in heterogeneous network

Wireless network services are more vigorous than ever due to the rapid development of mobile devices. For this reason, safety critical services such as on-line financial service have now mostly been used through the mobile environment. Recent mobile devices such as smart phones are evolving into multi-purpose handsets having multiple network interfaces and operating in a state that can receive the data any time through these different interfaces. In this situation, the mobile node can get access to the service provider through diverse access networks simultaneously. Therefore, service provider cannot distinguish which is a valid access for service. In this paper, we propose a dual authentication architecture that can guarantee the service safety between the mobile node and the safety critical service provider by using both network and service level information. Our approach can block at the root the unauthorized use of the service by malicious users through personal information piracy.