International Journal of Computer Science Issues
Security is quite challenging in Wireless Sensor Networks (WSN) because of their constrained nature in terms of resources such as limited memory, low processing power, limited bandwidth etc. Authentication in low power devices is still considered to be an expensive process. Certificateless signature is one of the approaches to facilitate authentication in these devices. Wireless Sensor Networks (WSNs) are such low power inexpensive networks, which needs authentication of message. In this paper, a certificateless signature proposed by a researcher is analyzed and an approach is being proposed to reduce the computation cost by more than 50 percent.