Cued Mnemonics for Better Security and Memorability
Author(s): Primal Wijesekera, Ivan Cherapau, Ayumi Samarakoon, Konstantin Beznosov

Date: July 2014
Publication: Symposium on Usable Privacy and Security (SOUPS) 2014
Publisher: SOUPS
Source 1: http://cups.cs.cmu.edu/soups/2014/workshops/papers/mnemonics_wijesekera_13.pdf

Abstract or Summary:
Passwords are still the most used authentication mechanism for wide spectrum of use cases. Memorability and security of human-chosen passwords are two of the most researched areas in authentication. Mnemonics has been widely accepted as a good middle ground between memorability and security. However, it has been shown lately that mnemonics can be vulnerable to carefully crafted dictionary attacks, as more people can converge to smaller set of chosen phrases. We present a novel approach in which, a totally random password is selected first and a text phrase that can act as a mnemonic to the password is generated afterwards. In generating the text phrase, user's background information is used so that text phrase can act as a cue/marker that triggers the memory hence better text recalling. We believe such an approach will both increase security and memorability of textual passwords.



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