Abstract:
This paper analyzes security challenges in ad hoc networks and summarizes key issues that should be solved for achieving the ad hoc security. It also gives an overview of the current state of solutions on such key issues as intrusion detection, secure routing and key management service. Based on our study, we present using external CA (Certificate Authority) and tamperresistant chip to support ubiquitous security in the ad hoc environment. In our proposal, the external CA is involved into the ad hoc networks when necessary. It can also be used to broadcast blacklist and shared-password to normal nodes by deploying broadcast encryption. The tamper-resistant chip can be embedded into the ad hoc node device to support secure storage, high secure session key generation, secure communication and secure data processing based on usage and access control information embedded by the data source. They can also support or cooperate with other existed ad hoc security mechanisms. 1
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