期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2011
卷号：2
期号：3
页码：655-665
出版社：Technopark Publications
摘要：MANET or Mobile Adhoc Network has drawn considerable research attention and application over the last few years. With the increase of applicability, and adaptability of the network in Private virtual network or wireless personal area network, the attacks and intrusion of MENT data has also increased which has lead to design various protocol extensions over the conventional 802.11 MAC security extensions for providing more security to such a network. MANET sessions are generally short and busty which requires the security extension to be designed in such a manner that the keys are short lived and refreshed frequently in order to make it impossible for intruder to hack any data. Therefore conventional public key cryptography with centralized key distribution mechanisms are not well suited for MANET. Therefore in this work we propose a unique decentralized dynamic key generation and security extension for MANET where keys are generated depending upon the state of a node and it’s link status like its energy, relative mobility, QOS parameters like delay, bandwidth, power loss based on fuzzy inference rule set. This key is further combined with a user level password for authentication and digital content encryption. As the state of the nodes differs almost in every session and sometimes in the middle of a session, hacking such key is theoretically “impossible” as the key refresh time is minimum here. The proposed technique is simulated with OMNET++ environment. Result shows significant proof of real time adaptability of the technique.
