MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202641094950 A) filed by Dr. Ebin Deni Raj; Dr. Radhakrishnan M; Dr. Sara Renjit; Dr. Ansith S; Dr. Suchithra M. S; and Dr. Arun Cyril Jose on August 05, 2026, for Relay-Resistant Optical Authentication System And Method Thereof.
Inventors include Dr. Ebin Deni Raj; Dr. Radhakrishnan M; Dr. Sara Renjit; Dr. Ansith S; Dr. Suchithra M. S; and Dr. Arun Cyril Jose.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: A relay-resistant optical authentication system (100) for verifying physical co-presence of a user device at a verification point is disclosed. The system (100) comprises a server authentication circuitry (102) configured to generate a session identifier, an ephemeral authentication secret, and a per-session cryptographic key. An authenticated encryption circuit (104) generates encrypted authentication ciphertext, while a threshold token generation circuit (106) produces encrypted threshold-split optical token shares. An optical sequence generation circuit (108) and a display control circuit (110) generate and display a time-varying optical authentication sequence. A co-present key transmission circuit (112) transmits the per-session cryptographic key through an independent proximity communication channel. A user authentication device (114), a key proof generation circuit (116), and an authentication validation circuit (118) jointly authenticate reconstructed optical information and cryptographic key possessi
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