An Authentication IC with Visible Light Based Interrogation in 65nm CMOS

Abstract

This paper presents an authentication IC in 65nm CMOS. The IC is interrogated using optical power transfer via off-chip photodiodes and visible light based data transfer via on-chip CMOS diodes. Authentication is performed with a lightweight encryption engine PRINCE. The IC consumes 2.29μW standby power and achieves 53.8kbps data rate. Side channel analysis is performed with results showing that 820K encryptions are necessary to reveal the secret key of the tag.