Online published on 27 February, 2017.
Recent advances in wireless networks and embedded systems have created a new class of pervasive systems such as Wireless Sensor Networks (WSNs) and Radio Frequency IDentification (RFID) systems. WSNs and RFID systems have provided promising solutions for a wide variety of applications. However, security and privacy concerns have raised serious challenges on these systems. These concerns have become more apparent when WSNs and RFID systems co-exist. In this article, we first briefly introduce WSNs and RFID systems. We then present their security concerns and related solutions. Finally, we propose a Linear Congruential Generator (LCG) based lightweight block cipher that can meet security co-existence requirements of WSNs and RFID systems.