Abstract: The design of secure routing protocol is one of an important part of research on network security for Ad hoc networks. At present,the research mainly focuses on means of classic cryptograph to guarantee security of routing. Integrating TPM of trusted computing and typical secure routing protocol - ARAN, this paper proposed a new secure protocol called TEARAN, this protocol doesn't adopt the way of the centralized public key certificate issued center-PKI,but utilizes the technique of DAA in TPM to authenticate the identity of each node, and employs the trust threshold of soft security to monitor the behavior of neighbor nodes, so that attaining the purpose of the trust distributed public key,in addition, avoiding malicious nodes joining in the network. This paper also assured the end to end confidentiality, integrity and non-epudiation. I3y theoretical analysis on the proposed TEARAN was presented to satisfy the demand of anonymous security, resist conventional malicious attacks and possess better security in effect.

Key words: TPM, Secure routing, Trust, Anonymity, Ad hoc networks