. . . "2018-05-01" . . . . . . "PassInfinity: A software prototype system"^^ . . . "This is a software research prototype system implemented to demonstrate a new \"all-in-one\" and backward compatible user authentication framework, which can generate passwords from all authentication factors. It was originally developed at the University of Surrey when Shujun Li was still working there, but the IPRs were transferred to the University of Kent in 2018."^^ . . . . . . . . . .