A new communication scheme for threshold certificate authority in ad hoc networks
Guangsong Li, Li Wei Hong, Wenbao Han · Wuhan University Journal of Natural Sciences · 2005
We present a new approach to reduce the communication overhead caused by threshold cryptography using modified multicast protocol and certificate proxy technology. Server nodes maintain a few multicast groups proactively. A client wanting to update its certificate multicasts its request to a server nodes group through its certificate proxy. At periodic intervals, server nodes refresh their shares of the private key of certificate authority using multicast.