Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: IResearch Article EDDK: Energy-Efficient Distributed Deterministic Key Management for Wireless Sensor Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011 Article ID 765143 11 pages doi 2011 765143 Research Article EDDK Energy-Efficient Distributed Deterministic Key Management for Wireless Sensor Networks Xing Zhang 1 Jingsha He 2 and Qian Wei1 1 College of Computer Science and Technology Beijing University of Technology Beijing 100124 China 2 School of Software Engineering Beijing University of Technology Beijing 100124 China Correspondence should be addressed to Jingsha He he@ Received 31 May 2010 Revised 23 September 2010 Accepted 21 November 2010 Academic Editor Damien Sauveron Copyright 2011 Xing Zhang et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Energy efficiency is an essential requirement for wireless sensor networks while security must also be ensured for mission-critical applications. In this paper we present an energy-efficient distributed deterministic key management scheme EDDK for resource-constrained wireless sensor networks. EDDK mainly focuses on the establishment and maintenance of the pairwise keys as well as the local cluster keys and can fix some flaws in some existing key management schemes. Not only can the neighbor table constructed during key establishment provide the security for key maintenance and data transfer but it can also be used to effectively manage the storage and update of the keys. By using the elliptic curve digital signature algorithm in EDDK both new and mobile sensor nodes can join or rejoin a sensor network securely. Unlike some centralized and location-based key management schemes EDDK does not depend on such infrastructure as base stations and robots and thus has a high level of flexibility. Experiments and analyses show that EDDK has a very low overhead in terms of computation .
