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: Research Article Secure Clustering and Symmetric Key Establishment in Heterogeneous Wireless Sensor Networks Reza Azarderskhsh and Arash Reyhani-Masoleh | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011 Article ID 893592 12 pages doi 2011 893592 Research Article Secure Clustering and Symmetric Key Establishment in Heterogeneous Wireless Sensor Networks Reza Azarderskhsh and Arash Reyhani-Masoleh Department of Electrical and Computer Engineering The University of Western Ontario London ON Canada N6A5B9 Correspondence should be addressed to Reza Azarderskhsh razarder@ Received 1 June 2010 Revised 10 August 2010 Accepted 2 October 2010 Academic Editor Damien Sauveron Copyright 2011 R. Azarderskhsh and A. Reyhani-Masoleh. 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. Information security in infrastructureless wireless sensor networks WSNs is one of the most important research challenges. In these networks sensor nodes are typically sprinkled liberally in the field in order to monitor gather disseminate and provide the sensed data to the command node. Various studies have focused on key establishment schemes in homogeneous WSNs. However recent research has shown that achieving survivability in WSNs requires a hierarchy and heterogeneous infrastructure. In this paper to address security issues in the heterogeneous WSNs we propose a secure clustering scheme along with a deterministic pairwise key management scheme based on public key cryptography. The proposed security mechanism guarantees that any two sensor nodes located in the same cluster and routing path can directly establish a pairwise key without disclosing any information to other nodes. Through security performance evaluation it is shown that the proposed scheme guarantees node-to-node authentication high resiliency against node capture and minimum memory space requirement. 1. Introduction The extensive rise of using wireless sensor .
