Security co-existence of wireless sensor networks and RFID for pervasive computing

Recentadvances inwirelessnetworksandembedded systemshavecreatedanewclass ofpervasive systems such as Wireless Sensor Networks (WSNs) and Radio Frequency IDentification (RFID) systems. WSNs and RFID systems provide promising solutions for a wide variety of applications, particularly in pervasive computing.However, security andprivacy concernshave 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, wepropose a LinearCongruentialGenerator (LCG)based lightweightblock cipher that canmeet security coexistence requirements of WSNs and RFID systems for pervasive computing. Published by Elsevier B.V.