Evaluation of different cryptographic algorithms on wireless sensor network nodes

Security aspects in wireless sensor networks is getting more and more attention in the recent years. Wireless sensor networks are being considered for critical applications where the security issues are a priority. The limited capacities of wireless sensor nodes and the complex algorithms of the security protocols make the subject challenging. Security algorithms are divided into two main families: symmetric and asymmetric algorithms. In this paper we evaluate different symmetric and asymmetric security algorithms in terms of time and energy consumption on one hand and memory usage on another hand.