Enhanced security framework and architecture for WSN against mobile sink replication attacks Srinath Yasam, Rao B.M., Kumar S. Phani, Janaradhan D. Assistant Professor, Department of CSE, PACE Institute of Technology & Sciences, Ongole Online published on 29 November, 2014. Abstract Mobile sinks (MSs) are vital in many wireless sensor network (WSN) applications for efficient data accumulation, localized sensor reprogramming, and for distinguishing and revoking compromised sensors. However, in sensor networks that make use of the existing key predistribution schemes for pairwise key establishment and authentication between sensor nodes and mobile sinks, the employment of mobile sinks for data collection elevates a new security challenge, However, in sensor networks that make use of the existing three tier security framework, elevates a new security challenge i.e an attacker can easily create a replicated node and can gain control of the data in the network. To reduce the damage caused by access node replication attack, strengthening the authentication mechanism between the sensors and access nodes is vital For this purpose, the single polynomial pool is converted to a double polynomial pool for providing security over the existing system. Also, security is increased by separating the access points into two layers namely, access nodes-D and access nodes-I along with a more secure authentication mechanism called WHIRLPOOL that produces a 512 bit encrypted text using iyaguchi-Preneel scheme of cipher text generation. Our proposed algorithm ensures the necessary security mechanism for Wireless Sensor Networks and also does not degrade the performance of quality of service. Top Keywords Security, Replication Attack, Wireless Sensor Networks, Whirlpool, Key Management. Top |