In Manet Security Authentication And Access Control Problems

MANET has developed for many years, and many of its related technologies have been very mature. But the security problem of the MANET has been a bottle-neck hindering its large-scale application and popularization, and the research works about deposit && access control in it are not so abundant. This paper will make a research about these two aspects.About the problem of security identity authentication, the solution has divided the MANET network into several domains, with each security domain conducting its own relatively independent security authentication and communication encryption. The secrete sharing in the partial domain through introducing Verifiable Secret Sharing (VSS) Protocol and the periodic secrete sharing renewal in the security domain can prevent mobile adversary attacks effectively. As for the node communications security aspect, the verification program based on the end leader (EL) in the domain is applied to effectively prevent the false node deceit. The messages sent during the communication are encrypt by the sender using the receiver's public key, by this way, confidentiality of communication is ensured effectively, and possible attacker also can not wiretap.As the aspect of deposit && access control, the RBAC model is imported into security domain with the basis of having finished the step of security identity authentication. First, we make a backup of the EL, then the solution choose centralized deposit && access control, roles and resources are grouped and classified, users and permissions are divided by roles, and management in security domain and within security domain are also split, with these ways, promptness and flexibility of in-domain access and security of within-domain access can be ensured effectively.