Study On Ad Hoc Group Key Agreement Protocol And Certificate Revocation Mechanism

As an infrastructureless radio network, the diverse application of Ad Hoc network in many different scenarios such as battlefield and disaster recovery has made it being researched by many different institute and experts. The infrastructureless and the dynamic nature of these network demands wide and deep research in different aspects of itself. To provide security service for Ad Hoc network is one of these researches. Our interesting research area is Ad Hoc group key agreement protocols and certificate revocation mechanism.Group key agreement protocols in Ad Hoc network are a challenging task and have received a tremendous amount of attention from researches. We first give an overview of protocols proposed in literature, and then present FGKA protocol which has little computation and communication. Considering the use of broadcast and the high burden of single coordinator, AT-FGKA protocol is presented in order to adapt to an arbitrary network topology by using k-ary tree. At last, to provide identity based authtication service, ID-EMAK protocol is proposted, which is Identity-based Enhanced Multi-party Authenticated Key Agreement Protocols from Multilinear Forms, by analyzing the security defect of ID-MAK protocol.Certificate revocation scheme is the most stuff work in certificate manage- ment. By improving the value of trust as well as using certificate state form and charge record form, A distributed certificate revocation scheme for ad hoc networks is presented, which can enhance the monitoring ability, stimulate the enthusiasm of each node, and reduce the traffic load as well.