PassCue: the Shared Cues System in Practice
Author(s): Mats Sandvoll, Colin Boyd, Bjørn B. Larsen

Date: December 2014
Publication: 7th International Conference on Passwords (Passwords14 Trondheim). Lecture Notes in Computer Science, Volume 9393
Page(s): 119 - 137
Publisher: Springer
Source 1: http://dx.doi.org/10.1007/978-3-319-24192-0_8 - Subscription or payment required

Abstract or Summary:
Shared Cues is a password management system proposed by Blocki, Blum and Datta at Asiacrypt 2013. Unlike the majority of password management systems Shared Cues passwords are never stored, even on the management device. The idea of the Shared Cues system is to help users choose and remember passwords in a manner proven to avoid brute force searching under reasonable assumptions.

Blocki et al. analysed Shared Cues theoretically but did not describe any practical tests. We report on the design and implementation of an iOS application based on Shared Cues, which we call PassCue. This enables us to consider the practicality of Shared Cues in the real world and address important issues of user interface, parameter choices and applicability on popular web sites. PassCue demonstrates that the Shared Cues password management system is useable and secure in practice as well as in theory.


PasswordResearch.com Note: Video of presentation: https://video.adm.ntnu.no/pres/5497f8f5eeb25


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