Key Management Scheme Suitable for Large-scale MANET
In mobile ad-hoc networks(MANET),when the number of nodes increase,the difficulty of building network,network availability and network security will be influenced badly.A new key management which based on the ring CA trust model has been proposed to solve the scalability of large scale MANET.It use traditional threshold digital signature scheme,and the CA only has cross authentication with its adjacent other two CA,thereby reducing the number of cross authentication and the overhead of communication and computation,between the CA is absolute trust chain,and effective to prevent the malicious signature.At the same time it has a good scalability and robustness,better applied to large scale MANET.