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Passphone: Outsourcing Phone-based Web Authentication while Protecting User Privacy
two-factor authentication unlinkability
2017/2/23
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...
Reconciling User Privacy and Implicit Authentication for Mobile Devices
Implicit Authentication User Privacy Homomorphic Encryption
2015/12/24
In an implicit authentication system, a user profile is used
as an additional factor to strengthen the authentication of
mobile users. The profile consists of features that are constructed
using th...