An Improved Anonymous Multi-Server Authenticated Key Agreement Scheme Using Smart Cards and Biometrics. - Hao Lin; Fengtong Wen; Chunxia Du (Wirel. Pers. Commun., 2015)

An anonymous and secure authentication and key agreement scheme for session initiation protocol. - Hao Lin; Fengtong Wen; Chunxia Du (Multim. Tools Appl., 2017)