Logic-based QCA implementation of a 4×4 S-Box

Quantum Cellular Automata (QCA) represents an emerging technology at the nano technology level. Nowadays, many applications of QCA technology are introduced and cryptography can be an interesting application of QCA technology. Substitution boxes are important components in many modern day block and stream ciphers. Here, we have implemented a specific 4×4 S-Box using QCA technology. Simulation results are obtained from QCADesigner software.