Quantum-Secure Key Distribution in a Resource-Constrained Environment

Abstract

In the evolving landscape of quantum computing, the security of conventional cryptosystems is increas- ingly compromised. This requires innovative data protection strategies, leading to the exploration of Post-Quantum Cryptography (PQC) techniques. This research aims to address these challenges, focusing on the integration of Nth- Degree Truncated Polynomial Ring (NTRU) encryption - known for its quantum resistivity - and Shamir’s Secret Sharing (SSS) for secure and quantum-secured key distribution, particularly in resource-constrained environments. Despite their effectiveness, NTRU ciphers face obstacles in public key distribution due to significant computational and memory requirements. Leveraging SSS, a scheme to distribute the NTRU public key to multiple shares, providing enhanced security while mitigating resource limitations is proposed. Recognizing the potential for security breaches like Man-in-the-Middle (MitM) and Distributed Denial of Service (DDoS) attacks, the proposed work seeks to fortify defenses against these threats. The findings of the proposed method are intended to offer a significant contribution to strengthening cryptographic practices in the face of emerging quantum technologies.