Photon-counting imaging based double-random-phase encryption for information security and verification

Abstract

The integration of photon-counting imaging techniques to optical encryption systems permits to increase information authentication robustness against intruder attacks. Photon-counting imaging generates distributions with only few photons and provides substantial bandwidth reduction by requiring only a sparse encrypted data. We show that photonlimited encrypted distributions have sufficient information for decryption, authentication and signal retrieval. Different approaches to compress the information on encrypted distributions are considered and analyzed.