Low-Complexity Encryption Algorithm Considering Energy Balance on Wireless Sensor Networks

This paper proposes an effective key-generation scheme applying to data encryption standard (DES) algorithm for wireless sensor networks (WSNs). In the scheme, data encryption is divided into several tasks for multiple nodes along a path from a source node to the base station. We perform simulations to compare distribution and centralization models. The results show that the distributed model obtains more balances in energy consumption compared to the centralization model. The proposed key management method also improves the security level of data by increasing the number of keys with a simple algorithm in WSNs.