A lattice-based public-key encryption scheme for RFID applications

With strict limits on area and power consumption, it's quite significant to design a novel RFID-suitable security scheme. In this paper, a lattice based public-key encryption scheme, the LWE cryptosystem is studied and the applicability for RFID system is assessed. The advantages and defects for the scheme to be implemented on hardware is analyzed, and improvement methods are proposed for the defects. Then, the applicability of LWE cryptosystem for RFID system is assessed from three aspects, security, circuit resources and power consumption. The results show that LWE cryptosystem is of high security, and can be easily hardware implemented, and the power consumption is very low. So, there are great possibilities that the LWE cryptosystem is used as a security scheme for the RFID system.