Authentication, KDC, and key pre-distribution techniques-based model for securing AODV routing protocol in MANET

Abstract

Open wireless communication medium makes MANETs susceptible to various attacks. Security scheme implementation needs an adequate amount of memory and processing power of networking and communicating devices. But devices’ uses in MANET not satisfying this requirement make implementation of security scheme more challenging. In MANET, absence of networking devices (communicating node works as router as well as host) makes this task more difficult. In this paper, authentication, key distribution center (KDC) along with key pre-distribution techniques-based model has been proposed to secure the AODV routing protocol against most dangerous and frequently happed attacks (black hole, gray hole, rushing attacks, message impersonation, spoofing, fabrication attacks, etc.). In this scheme, two levels of authentication using message authentication code are used. At first level, share key (key table distributed at the time of deployment) is used for authentication, and for second level, second key distributed by KDC at run time is used for generating the authentication code. Key pre-distribution (key table distributed at the time of deployment) is uses for speedup the our algorithm and reduces the overhead of each node to distribute the key during the communication while KDC based second key distribution is uses to enhances attacks prevention capability of our proposed scheme. Simulation results showing in this paper our proposed algorithm working efficiently well in the presence and absence of malicious nodes as compared to state of art AODV protocol and recently published well defined protocols. NS2.35 on Ubuntu 12.04 LTS with 4 GB RAM is used for simulation. PDR, AE2ED, and average TP parameters have been used for testing the performance of our proposed algorithm.