The Best Performance Evaluation of Encryption Algorithms to Reduce Power Consumption in WSN

Wireless Sensor Networks (WSNs), applications are growing rapidly, so the needs to protect such applications are increased. Cryptography plays a main role in information system security where encryption algorithm is the essential component of the security. On the other side, those algorithms consume a significant amount of computing resources such as CPU time, memory, and battery power. This paper provides evaluation of four of the most common encryption algorithms namely: RC4, DES, and AES as a symmetric cipher and RSA for asymmetric cipher. A comparison has been conducted for those encryption algorithms at different settings such as different sizes of data blocks, different key size and finally encryption/decryption speed. Simulation results are given to demonstrate the effectiveness of each algorithm on power consuming.