Ronghai Yang is currently a PhD candidate in the Department of Information Engineering at The Chinese University of Hong Kong. His supervisor is Wing Cheong Lau. He received the bachelor degree from the University of Science Technology of China (USTC) in 2013. His research interest includes protocol verification, applied cryptography and cyber security. His previous work on OAuth2.0 insecurity has been presented in ACM Conference on Online Social Networks (COSN) 2014 as well as ACM AsiaCCS 2016.