Secure user-identification and key distribution scheme preserving anonymity
Somanath Tripathy, Sukumar Nandi · International Journal of Security and Networks · 2008
User-identification and key distribution with preserving anonymity is an important issue for remote access. Yang et al. proposed an efficient user identification and key distribution scheme preserving user anonymity. In this paper, we show the vulnerabilities of Yang's scheme against forgery and impersonation attacks. Further, we propose a highly secured protocol upholding the same properties.