Secure group communication with distributed generation of private keys for ad-hoc networks

Mobile ad-hoc networks are emerging as important computing platforms, and their users expect the security to be comparable to fixed, infrastructural networks. With the increase of group-oriented applications, secure communication has to be provided between a group of nodes that may join and leave the network in an unplanned manner. Previous solutions have achieved limited success, for example did not provide manageable confidentiality of messages. This paper proposes a fast, scalable group encryption key model that is suitable for ad-hoc networks and is resistant against multiple compromised nodes.