Self-initialized Distributed Certificate Authority for Mobile Ad Hoc Network

Authors:
Meng Ge;Kwok-Yan Lam
Affiliations:
Key Laboratory for Information System Security, Ministry of Education Tsinghua National Laboratory for Information Science & Technology School of Software, Tsinghua University, China and Departmen ...;Key Laboratory for Information System Security, Ministry of Education Tsinghua National Laboratory for Information Science & Technology School of Software, Tsinghua University, China
Venue:
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
Year:
2009

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Abstract

Mobile Ad Hoc Network (MANET) is suitable for providing communication services in situations where no infrastructure exists. Due to the unique features of MANET, most of the applications of MANET have non-trivial security requirements. As the basis of security services, key management is essential for securing communication systems. In this paper, we address issues critical to key management in MANET. A Self-initialized Distributed Certificate Authority (SDCA) model which combines the advantages of two existing schemes, the Distributed Certificate Authority (DCA) scheme and Certificate Chain (CC) scheme, is proposed. In the proposed model, no trusted dealer or the pre-established trust relationships is required. Instead, entities in the MANET could collaborate to initialize the key management service on the fly. The simulation results illustrate that the proposed model will bring less communication, storage and computational overheads for maintaining and using the key management service than other self-organized key management schemes.