MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202631123731 A) filed by C. V. Raman Global University on October 15, 2026, for A Context-Aware Zero Trust Security Architecture Incorporating Privacy- Preserving Policy Retrieval And Dynamic Trust Evaluation For Critical Infrastructure.

Inventors include Ashutosh Soni; Surendra Kumar Nanda; Jayanti Rout; Mrutyunjaya Sathua; Swatisipra Das; Rojalina Priyadarshini; Adyasha Rath; and Ganapati Panda.

The application for the patent was published on October 23, 2026, under issue no. 43/2026.

Abstract: A context-aware Zero Trust security architecture is disclosed for protecting critical infrastructure systems, including government, banking, and defense environments, against unauthorized access and evolving cyber threats. The architecture comprises a Policy Decision Point and Policy Enforcement Point configured in accordance with continuous verification principles, wherein access policies are retrieved obliviously through cryptographic trapdoor tokens without revealing queried attributes, and stored within an encrypted graph database enabling efficient, scalable enforcement. An adaptive anomaly detection engine employing a Liquid Neural Network with Fast Fourier Transform preprocessing enables real-time identification of anomalous behavior with reduced computational cost, while a dynamic trust score computation module employs bio-inspired Differential Evolution optimization to adaptively refine trust weightings across thirty-one contextual parameters. Credential protection is achieved through Argon2 hashing, while hybrid authentication tokens combining classical Ed25519 and post-quantum Dilithium signatures, together with Attribute- Based Encryption and Kyber key encapsulation, ensure resilience against classical and quantum threats. Master keys are isolated within Hardware Security Modules, and access decisions are recorded within a tamper-resistant blockchain employing randomized aggregate mining, yielding a scalable, privacy-preserving, and quantum- resilient Zero Trust solution for critical infrastructure protection.

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