The daily practice of online image sharing enriches our lives, but also raises a severe issue privacy leakage. To mitigate the risks during sharing, some researchers modify sensitive elements in images with visual obfuscation methods including traditional ones like blurring and pixelating, as well generative based on deep learning. However, processed by such may be recovered or recognized model...

The technique of group secret handshake (GSH) has been used to help the members affiliated with same in achieving private authentication. After executing GSH protocols, participants can compute a shared key, or generate public encryption key while true self-compute their decryption keys. This paper presents concrete protocol Multiple Groups. Only legitimate member prove that it belongs set affi...