An Efficient User Authentication and Key Exchange Protocol for Mobile Client - Server Environment

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Considering the low-power computing capability of mobile devices, the security scheme design is a nontrivial challenge. The IDentity (ID)-based public-key system with bilinear pairings defined on elliptic curves offers a flexible approach to achieve simplifying the certificate management. In the past, many user authentication schemes with bilinear pairings have been proposed. In 2009, Goriparthi et al. also proposed a new user authentication scheme for mobile client - server environment. However, these schemes do not provide mutual authentication and key exchange between the client and the server that is necessary for mobile wireless networks. In this paper, the authors present a new user authentication and key exchange protocol using bilinear pairings for mobile client - server environment.