Work

Continuous-variable quantum authentication of physical unclonable keys

Year: 2017

Type: article

Abstract: We propose a scheme for authentication of physical keys that are materialized by optical multiple-scattering media. The authentication relies on the optical response of the key when probed by randomly selected coherent states of light, and the use of standard wavefront-shaping techniques that direct the scattered photons coherently to a specific target mode at the output. The quadratures of the electromagnetic field of the scattered light at the target mode are analysed using a homodyne detection scheme, and the acceptance or rejection of the key is decided upon the outcomes of the measurements. The proposed scheme can be implemented with current technology and offers collision resistance and robustness against key cloning.

Source: Scientific Reports

DOI: 10.1038/srep46047

Authors: Georgios M. Nikolopoulos, Eleni Diamanti

Institutions: FORTH Institute of Electronic Structure and Laser, Centre National de la Recherche Scientifique, Sorbonne Université, LIP6, Université Pierre-et-Marie-Curie

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,407

Funders: European Cooperation in Science and Technology, Agence Nationale de la Recherche