Continuous-variable quantum authentication of physical unclonable keys
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...
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| Veröffentlicht in: | Scientific reports 2017-04, Vol.7 (1), p.46047-46047, Article 46047 |
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| creator | Nikolopoulos, Georgios M. Diamanti, Eleni |
| description | 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. |
| doi_str_mv | 10.1038/srep46047 |
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| subjects | 639/624/400/482 639/766/483/481 Algorithms Cloning Computer Science Cryptography and Security Electromagnetic fields Electromagnetism Humanities and Social Sciences Lasers Light multidisciplinary Optics Personal identification numbers Photons Physics Protocol Questioning Science |
| title | Continuous-variable quantum authentication of physical unclonable keys |
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