Title
Passphone: Outsourcing Phone-Based Web Authentication While Protecting User Privacy.
Abstract
This work introduces Passphone, a new smartphone-based authentication scheme that outsources user verification to a trusted third party without sacrificing privacy: neither can the trusted third party learn the relation between users and service providers, nor can service providers learn those of their users to others. When employed as a second factor in conjunction with, for instance, passwords as a first factor, our scheme maximizes the deployability of two-factor authentication for service providers while maintaining user privacy. We conduct a twofold formal analysis of our scheme, the first regarding its general security, and the second regarding anonymity and unlinkability of its users. Moreover, we provide an automatic analysis using AVISPA, a comparative evaluation to existing schemes under Bonneau et al.' s framework, and an evaluation of a prototypical implementation.
Year
DOI
Venue
2017
10.1007/978-3-319-47560-8_15
Lecture Notes in Computer Science
DocType
Volume
ISSN
Journal
10014
0302-9743
Citations 
PageRank 
References 
0
0.34
19
Authors
4
Name
Order
Citations
PageRank
Martin Potthast187187.94
Christian Forler214412.56
Eik List311113.70
Stefan Lucks41083108.87