METHOD OF GENERATING PRIVATE KEYS USING TIME-ENTANGLED PHOTON PAIRS Russian patent published in 2015 - IPC H04L9/08 

FIELD: physics.

SUBSTANCE: invention relates to quantum cryptography and more specifically to methods of generating private keys using time-entangled photon pairs. The method of generating private keys using time-entangled photon pairs includes allocating, between two private key transmission participants, photons from time-entangled photon pairs, converting said photons with interferometers of the participants, detection thereof with single-photon detectors and processing the measurement results with a computer, which includes communication between participants over a public link. Further, the method includes establishing a time interval coordinated between the participants, dividing the time interval into M equal subintervals and determining subintervals during which single-photon detectors of the participants are triggered, after which the number of said subintervals is used as key elements.

EFFECT: faster allocation of private keys between communication participants and longer range of transmitting private keys.

2 cl, 1 dwg