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Ashok Kumar Das

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Open access 2026

Agentic AI-Powered Sensors-Based Privacy-Preserving Postquantum Secure Authentication for IoT-Enabled Medical Cyber-Physical Environment

The integration of postquantum security with agentic reasoning and verification provides a practical foundation for next-generation intelligent healthcare systems supporting remote patient monitoring and clinical decision support.

Snehal Jain, Abhishek Kumar Pandey, Ashok Kumar Das et al. · 0 citations
Conference Jul 2026

Quantum-Resistant Security Protocol for Digital Identity Verification Using KYC-as-a-Service in 6G-Enabled Banking Applications

Digital identity verification is a critical security requirement in modern banking systems, where Know Your Customer (KYC) procedures are mandated to mitigate fraud and ensure regulatory compliance. Existing KYC solutions, such as blockchain-based and decentralized identity frameworks, are not suitable for long-term de...

A. K. Pandey, Debnath Ghosh, Mohammad S. Obaidat et al. · 0 citations
2026

Post-Quantum Secure Lattice-Based Lightweight Authentication Scheme for Energy Internet-Based V2G Communication

Electric Vehicles (EVs) now function as both energy consumers and producers within the energy internet-enabled smart grid, enabling bidirectional energy exchange with the grid. To facilitate secure Vehicle-to-Grid (V2G) communication, mutual authentication between EVs and charging stations (CSs) over open wireless chan...

Nahida Majeed Wani, Girraj Kumar Verma, Saurabh Rana et al. · 0 citations
Open access Aug 2026

QUEST: A Simulation-Based QKD Architecture with Eight-State Time-Bin Modulation and Adaptive Homodyne–Heterodyne Detection

ModPhase-8 is introduced, a proposed QKD modulation and adaptive-receiver architecture evaluated through analytical modeling and simulation that provides an analytical security assessment under the stated collective-attack, source, channel, receiver, and trusted-device assumptions, supplemented by attack-specific analy...

Vidhya Prakash Rajendran, D. Perumalsamy, Basker Palaniswamy et al. · 1 citation
Jul 2026

Blockchain-Enabled Hybrid Quantum-Safe Attribute-Based Access Control Scheme with Attribute Revocation Strategy for Smart Healthcare System

This paper presents a hybrid quantum-safe ABAC framework that integrates fine-grained attribute-based access control with quantum-safe communication techniques and blockchain-assisted attribute management in order to enable secure, efficient, and scalable data sharing in smart healthcare systems.

Debnath Ghosh, Ashok Kumar Das, Sunil Prajapat et al. · 0 citations

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