Authentication Network security 10 Cryptography 5 Cyber security 4 Cybersecurity 4 Internet of things 3 Internet protocols 3 authentication 3 'current 2 Binarization processing 2 Block-chain 2 Blockchain 2 Communication wireless network 2 Communications networks 2 Computational ghost imaging 2 Computer crime 2 Cryptographic key 2 Cryptographic key distribution 2 Cybe security for smart city 2 Identity authentication 2 Image processing 2 Information and Communication Technologies 2 Interactive joint authentication 2 Key distribution 2 Key-distribution protocols 2 Man in the middle 2 Man-in-the-middle attack 2 Multi-party optical communication 2 Network intrusion detection system 2 Network intrusion detection systems 2