An authentication protocol based on threshold secret sharing

Mutual authentication is vital concept to network security and incorporated to proprietary security solutions. In this paper, we present a new mutual authentication protocol based on the threshold secret sharing scheme of Shamir that can stop man-in-the-middle attacks, session highjacking and replay attacks. Although authentication protocol based on threshold secret sharing was motivated by WLAN security in the infrastructure mode, we believe that it can be modified for the adhoc mode in where each mobile node holds a partial secret and the nodes can collaborate with each other to authenticate a new node.