Passwords for everyone: secure mnemonic-based accessible authentication
Umut Topkara, Mercan Topkara, Mikhail J. Atallah · 2007
In many environments, a computer system is severely constrained to the extent that the practical input mech-anisms are merely binary switches. Requiring the user to remember a long random bit string and to authenti-cate by entering each bit in the available binary input mechanism, is completely impractical. This paper deals with the question of authentication in such environments where the inputs are constrained to be yes/no responses to statements displayed on the user’s screen. We present PassWit, a mnemonic-based system for such environ-ments that combines good usability with high security, and has many additional features such as (to mention a few) resistance to phishing, keystroke-logging, and com-patibility with currently deployed systems and password file formats (hence it can co-exist with existing login mechanisms). 1