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 Efficient Public Key Certificate Management for Mobile Ad Hoc Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011 Article ID 935457 11 pages doi 2011 935457 Research Article Efficient Public Key Certificate Management for Mobile Ad Hoc Networks P. Caballero-Gil and C. Hernandez-Goya Department of Statistics Operations Research and Computing University of La Laguna 38271 Tenerife Spain Correspondence should be addressed to P. Caballero-Gil pcaballe@ Received 1 June 2010 Revised 28 September 2010 Accepted 30 September 2010 Academic Editor Damien Sauveron Copyright 2011 P. Caballero-Gil and C. Hernandez-Goya. 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. Mobile ad hoc networks involve communications over a shared wireless channel without any centralized infrastructure. Consequently in an optimal solution management and security services depend exclusively on network members. The main contribution of this paper is an efficient public key management scheme that is suitable for fully self-organized mobile ad hoc networks where all nodes play identical roles. Our approach implies that the operations of creating storing distributing and revoking nodes public keys are carried out locally by the nodes themselves. The goal of the presented methods is the improvement in the process of building local certificate repositories of nodes. In order to do it an authentication solution based on the web of trust concept is combined with an element of routing based on the multipoint relay concept introduced in the optimized link state routing protocol. Our proposal leads to a good tradeoff among security overhead and flexibility. Experimental results show a considerable decrease in resource consumption while carrying out the certificate verification process. 1. Introduction A Mobile Ad hoc NETwork MANET is a highly dynamic
