Title:
OPTICAL PHYSICAL UNCLONABLE FUNCTION BASED ON MULTIMODE OPTICAL WAVEGUIDE
Document Type and Number:
WIPO Patent Application WO/2019/021206
Kind Code:
A3
Abstract:
The invention is related to a security device and a method suitable for generating challenge-response pairs for authentication and cryptographic application. The device comprises a) a coherent light source (501) to generate a coherent light excitation having an intensity, a phase, a polarization and a spatial distribution, b) challenge creating means (503) configured to alter the intensity and/ or the phase and/or the polarization and/or the spatial distribution of the coherent light to create an optical challenge, c) first imaging means (502) configured to guide the coherent light at the challenge creating means, d) an optical Physical Unclonable Function specimen (509) with a multimode optical waveguide, which optical PUF specimen is configured to generate an optical response, through propagation of the optical challenge in the waveguide, e) second imaging means (504) configured to guide the optical challenge at the optical PUF specimen and f) an optical detector (511) configured to detect the spatial profile and intensity of the optical response. The invention employs a photonic or an optical PUF specimen. The propagation of the optical challenge through the o- PUF specimen generates an optical response that in combination with the optical challenge is a unique pair suitable for authentication and cryptographic key generation
Inventors:
MESARITAKIS CHARIS (GR)
SYVRIDIS DIMITRIS (GR)
SYVRIDIS DIMITRIS (GR)
Application Number:
PCT/IB2018/055546
Publication Date:
April 11, 2019
Filing Date:
July 25, 2018
Export Citation:
Assignee:
EULAMBIA ADVANCED TECH LTD (GR)
International Classes:
G02B6/28; H04L9/32
Foreign References:
| EP2693685A1 | 2014-02-05 |
Other References:
BRÜNING ET AL.: "Rapid measurements of the fiber's transmission matrix", PROCEEDINGS OF THE SPIE, NEXT-GENERATION OPTICAL COMMUNICATION: COMPONENTS, SUB-SYSTEMS AND SYSTEMS IV, vol. 9389, 93890N, 7 February 2015 (2015-02-07), pages 1 - 7, XP002786602
Attorney, Agent or Firm:
SAMUELIDES, Emmanuel (GR)
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