Special Section: Physical Unclonable Function (PUF) 79 P Guest Editors' Introduction hysical Unclonable Function (PUF)-Based Sustainable Cybersecurity Himanshu Thapliyal and Saraju P. Mohanty 81 A 90 P rtificially Intelligent Electronic Money Georgios Fragkos, Cyrus Minwalla, Jim Plusquellic, and Eirini Eleni Tsiropoulou IM: A PUF-Based Host Tracking Protocol for Privacy Aware Contact Tracing in Crowded Areas Venkata Prasanth Yanambaka, Ahmed Abdelgawad, and Kumar Yelamarthi 99 A 106 A n Integrated TRNG-PUF Architecture Based on Photovoltaic Solar Cells Amit Degada and Himanshu Thapliyal Secure Hardware-Assisted AMI Authentication Scheme for Smart Cities Fathi Amsaad, and Selçuk K€ose