Abstract
Mobile Ad Hoc Network (MANET) emerges as one of the popular network as it provides an infrastructure-less protocol to allow mobile devices to send and receive data between one another. However, due to its wireless nature, it is susceptible to various malicious attack such as DoS, wormhole and man-in-the-Middle. As a result, key management protocol has been created in order to overcome this problem. SKiMPy protocol has been designed to send protected data with symmetric shared key in MANET. However, there are several changes need to be done in this protocol predominantly towards improving the delay process of key transmission. Therefore, Mobile Fickle Key (MFK) protocol is proposed to solve the problem. The protocol is tested on an ns-2 simulation environment and it is indicated that MFK performs better than SKiMPy in terms of both time delay and connectivity.
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