7 citations · 11 across the 4 of their papers we have counts for
4 papers
Device-Bound vs. Synced Credentials: A Comparative Evaluation of Passkey Authentication
Andre Büttner, Nils Gruschka
With passkeys, the FIDO Alliance introduces the ability to sync FIDO2 credentials across a user's devices through passkey providers. This aims to mitigate user concerns about losin…
Secure and Privacy-Preserving Authentication for Data Subject Rights Enforcement
Malte Hansen, Andre Büttner
In light of the GDPR, data controllers (DC) need to allow data subjects (DS) to exercise certain data subject rights. A key requirement here is that DCs can reliably authenticate a…
Evaluating the Influence of Multi-Factor Authentication and Recovery Settings on the Security and Accessibility of User Accounts
Andre Büttner, Nils Gruschka
Nowadays, most online services offer different authentication methods that users can set up for multi-factor authentication but also as a recovery method. This configuration must b…
Is It Really You Who Forgot the Password? When Account Recovery Meets Risk-Based Authentication
Andre Büttner, Andreas Thue Pedersen, Stephan Wiefling +2
Risk-based authentication (RBA) is used in online services to protect user accounts from unauthorized takeover. RBA commonly uses contextual features that indicate a suspicious log…