Quantum multi-factor authentication
This addresses security vulnerabilities in authentication systems for users, though it appears incremental as it builds on existing quantum communication concepts.
The paper tackles the problem of multi-factor authentication by proposing a quantum authentication mechanism based on the hidden-matching quantum communication complexity problem, which offers step-up graded authentication via a quantum token and can be implemented in classical settings like SASL.
We present a quantum multi-factor authentication mechanism based on the hidden-matching quantum communication complexity problem. It offers step-up graded authentication for users via a quantum token. In this paper, we outline the protocol, demonstrate that it can be used in a largely classical setting, explain how it can be implemented in SASL, and discuss arising security features. We also offer a comparison between our mechanism and current state-of-the-art multi-factor authentication mechanisms.