Fault Tolerant Authentication in Mobile Computing.
Bharat Bhargava, Sarat Babu Kamisetty, Sanjay Madria · 2000
Survivability and secure communica- tions are essential in a mobile computing environment. In a secured network, all the hosts in the local network must be authenticated before they communicate with the hosts outside the network. The fail- ure of the nodes/agents that authenticate the hosts may completely detach the hosts from the rest of the network. In this paper, we describe two techniques to eliminate such a single point of failure. Both of these techniques make use of backup servers, but they are architecturally different. We address the sealability issue of the techniques proposed by a cluster-based scheme where the front-end directs the requests to a group of back-end machines.