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<p>In today’s highly interconnected digital landscape, secure identity verification and authentication have become essential to ensure data privacy and confidentiality, but also for maintaining trust, regulatory compliance, and protection against sophisticated cyber threats. As cloud environments continue to expand and host increasingly sensitive and large-scale data, the demand for more robust and future-proof security mechanisms has intensified. Addressing this challenge, this article proposes a novel framework using Quantum Key Distribution (QKD) for identity verification and authentication, offering a resilient solution against both classical and quantum-era cyberattacks. The cloud system integrates key entities, including Cloud Service Providers (CSPs), data users, and data owners, and operates through five distinct phases: Initialization and Registration, Quantum Key Generation and Distribution, Identity Verification and Registration, key agreement, and password change. In the initialization phase, security parameters are established, and the registration phase ensures the enrollment of all entities. Then, a Quantum Key is generated by the Dense Network and Quantum Key Techniques (DNet-QKT) for exchanging keys. Then, Identity verification and authentication are reinforced using Advanced Encryption Standard (AES), hashing, Exclusive OR (XOR), and cryptographic keys. Finally, the password update phase provides a dependable and secure mechanism for users to modify their credentials, reinforcing the system’s integrity and ensuring resilience against emerging security threats. For a key size 8, DNet-QKT established a computational cost of 2.766 s (sec), and memory of 20.400 Megabytes (MB).</p>

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Dense network and quantum key techniques: a novel approach to identity verification and authentication

  • 期刊论文

  • 发表日期：

    2026年3月22日

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  • Suresh Kumar Krishnamoorthy,
  • Malini Muthupandian,
  • Vemireddi Srinadh,
  • Daniya Thavasilingam

摘要

In today’s highly interconnected digital landscape, secure identity verification and authentication have become essential to ensure data privacy and confidentiality, but also for maintaining trust, regulatory compliance, and protection against sophisticated cyber threats. As cloud environments continue to expand and host increasingly sensitive and large-scale data, the demand for more robust and future-proof security mechanisms has intensified. Addressing this challenge, this article proposes a novel framework using Quantum Key Distribution (QKD) for identity verification and authentication, offering a resilient solution against both classical and quantum-era cyberattacks. The cloud system integrates key entities, including Cloud Service Providers (CSPs), data users, and data owners, and operates through five distinct phases: Initialization and Registration, Quantum Key Generation and Distribution, Identity Verification and Registration, key agreement, and password change. In the initialization phase, security parameters are established, and the registration phase ensures the enrollment of all entities. Then, a Quantum Key is generated by the Dense Network and Quantum Key Techniques (DNet-QKT) for exchanging keys. Then, Identity verification and authentication are reinforced using Advanced Encryption Standard (AES), hashing, Exclusive OR (XOR), and cryptographic keys. Finally, the password update phase provides a dependable and secure mechanism for users to modify their credentials, reinforcing the system’s integrity and ensuring resilience against emerging security threats. For a key size 8, DNet-QKT established a computational cost of 2.766 s (sec), and memory of 20.400 Megabytes (MB).