MUMBAI, India, Nov. 14 -- Intellectual Property India has published a patent application (202411025550 A) filed by Birla Institute Of Technology And Science, Pilani, Rajasthan, on March 28, 2024, for 'methods for efficient quantum key distribution and appartus thereof.'
Inventor(s) include Dr. Ashutosh Bhatia; Dr. Sainath Bitragunta; Dr. Kamlesh Tiwari; and Pratham Prateek Mohanty.
The application for the patent was published on Nov. 14, under issue no. 46/2025.
According to the abstract released by the Intellectual Property India: "The present disclosure discloses an Enhanced Lightweight Quantum Key Distribution (LQKD) protocol. The LQKD establishes a secure key exchange framework by integrating Quantum Random Number Generators (QRNGs), Pseudorandom Number Generators (PRNGs), and Trusted Platform Modules (TPMs). The system generates predetermined positions for key bit verification, calculates hash values for randomized key sequences, and employs classical error reconciliation techniques for error correction. The absence of an eavesdropper is verified through hash value comparisons, allowing for the transformation of shared keys with privacy amplification. The system also provides an optional key initialization process and adapts the key exchange based on estimated Quantum Communication Channel (QCC) error rates to ensure a robust and efficient approach to quantum key distribution."
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