Improving the Security of the Chien-Jan Protocol for Large Mobile Networks

In 2003, Chien and Jan proposed an authentication scheme for hybrid networking environments. The scheme consisted of two subschemes; an intra-domain authentication subscheme, and an inter-domain authentication subscheme. In 2006, Qiang and Chris analyzed these two subschemes and found security vulnerability. However, they did not correct the security problem they found. In this paper, we propose a scheme to correct that security problem.