The invention concerns a system and method for node authentication in an optical communication network. An authenticating node transmits a photon having polarization to a supplicant node that must be authenticated. The supplicant node reflects the photon randomly with a mirror (26) or with a mirror with Faraday rotator (28) having a 45-degree rotational power. The authenticating node receives the reflected photons from the supplicant node. The supplicant node transmits to the supplicant node information indicating when the mirror with Faraday rotator was used. The authenticating node authenticates the supplicant node if it verifies that, on the occasion of the use of the mirror with Faraday rotator (28), the authenticating node has received a photon with polarization orthogonal to that transmitted.
SYSTEM AND METHOD FOR NODE AUTHENTICATION IN AN OPTICAL COMMUNICATION NETWORK
Martinelli Mario
2024-01-01
Abstract
The invention concerns a system and method for node authentication in an optical communication network. An authenticating node transmits a photon having polarization to a supplicant node that must be authenticated. The supplicant node reflects the photon randomly with a mirror (26) or with a mirror with Faraday rotator (28) having a 45-degree rotational power. The authenticating node receives the reflected photons from the supplicant node. The supplicant node transmits to the supplicant node information indicating when the mirror with Faraday rotator was used. The authenticating node authenticates the supplicant node if it verifies that, on the occasion of the use of the mirror with Faraday rotator (28), the authenticating node has received a photon with polarization orthogonal to that transmitted.| File | Dimensione | Formato | |
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PCTIB2024052193-pamph-000040-en.pdf
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