An efficient security architecture for Wireless Sensor Networks using pseudo-inverse matrix

Public Key Cryptography (PKC) based schemes in Wireless Sensor Networks (WSNs) are very difficult to employ due to the resource constraint characteristics of the tiny sensors. Addressing the features of sensor nodes, in this paper, we propose a PKC based architecture, where singular value decomposition (SVD) of pseudo-inverse matrix is used for the key generation. Main attention of our paper is devoted to the security level and power consumption as the Asymmetric Key-Based Architecture is usually considered incompetent in terms of cost efficacy. Our experimental results demonstrate that the proposed scheme ensures better performance in terms of security and power than other prevailing asymmetric schemes considering the MICA2DOT motes of wireless sensor nodes. In addition, it can help to realize the networks accurately, utilizing computational ability, storage and energy level of the current generation sensor nodes.