Quantum dot Cellular Automata based Fault Tolerant Fingerprint Authentication Systems using Reversible Logic Gates

The limits and difficulties looked by CMOS innovation in the nano system has prompted exploration of other potential advancements which can work with same functionalities anyway lower power scattering higher speed. One such technology is Quantum dot Cellular Automata (QCA). In this paper, QCA explored to design authentication system. This paper first presents basic operating principle a Fingerprint Authentication System (FAS) followed fault tolerance analysis four efficient XOR gate designs literature. then used proposed tolerant reversible FAS QCA, are based on different gates. Based evaluation performance parameters, it seen that cost achieve improvement up 59.46% terms number cells, 67.16% cell area, 67.14% total 66.67% latency 90.51% circuit from existing Furthermore, energy dissipation examination also additionally introduced. Subsequently, be effectively biometric applications demanding ultra-low consumption, speed minimal area utilization.