A Novel Cryptographic Design in Quantum Dot Cellular Automata
S. Umira R. Qadri, Z. A. Bangi, Mohammad Tariq Banday, G. Mohiuddin Bhat · 2018
Quantum dot Cellular Automata (QCA), an advanced nanotechnology, is a branch of nano-electronics that tries to create all-purpose computation at nano scale by governing the position of electrons. The basic logic depiction in QCA does not use voltage level; rather it represents the binary state by polarization of electrons in the Quantum Cell, which is fundamental element of QCA. This technology has great potential to provide high space density, ultra-low power dissipation that enables us to build QCA circuits with faster speed, smaller size & high performance for integration and computation. QCA presents proficient solutions for several arithmetic circuits, such as comparators, multipliers, adders, etc. This paper presents a thorough analysis of QCA based Universal FNZ gate [1] with its stability proof upon which a new design of 2:1 multiplexer has been proposed. The proposed work uses novel implementation approaches, procedures and new interpretations of simple logic equations to create the proposed designs competent enough in terms of cell count, area, polarization etc. The functionality of universal FNZ Gate based 2:1 multiplexer has been tested by QCA Designer where a comprehensive evaluation with the formerly described designs confirm the consistent recital and high efficiency of the proposed designs.