An Efficient Solution Method to Membership Control in MANETs

In the paper, we firstly propose a distributed key generation protocol called elliptic curve distributed key generation based on Peterson´s scheme, which is invulnerable to the inner malicious member´s attack. We next propose a membership control protocol to allow multiple members to sign a group member certificate when a new member joins network. In the scheme, membership control is realized by threshold signature based on ECC which makes the proposed signature scheme more suitable for limited resource devices. At last, we give a scheme which can dynamically change the threshold in proportion to the current group size.