Authentication Binarization processing COVID-19 China Computational ghost imaging Cryptographic key Cryptographic key distribution Genomics Humans Identity authentication Image processing Interactive joint authentication Internet protocols Key distribution Key-distribution protocols Multi-party optical communication Network security Network-based Optical communication Public networks Revision SARS-CoV-2 human 2019-nCoV 3D printing ACE2 protein, human Absorbance coefficients Active power Active power modulation Additive Manufacturing (AM)