Key Distribution and Authentication System for MANET Without Pre-Fixed Trust Relationship

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Executive Summary

As various applications of wireless ad hoc network have been proposed, security has become one of the big research challenges and is receiving increasing attention. In contrast with conventional networks, mobile ad hoc networks usually do not provide online access to trusted authorities or to centralized servers, and they exhibit frequent partitioning due to link and node failures and to node mobility. For these reasons, traditional security solutions that require online trusted authorities or certificate repositories are not well-suited for securing ad hoc networks. The present approach provides for a distributed key management and authentication approach by deploying the recently developed concepts of identity-based cryptography and threshold secret sharing.

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