Post-Quantum & Quantum-Ready Security: Preparing for the Next Era of Cyber Threats

Abstract

ABSTRACT

The rise of quantum computing presents both unprecedented opportunities and significant threats to current cybersecurity frameworks. Classical cryptographic algorithms, such as RSA and ECC, which underpin secure communications, are vulnerable to attacks from sufficiently powerful quantum computers. This paper reviews the emerging field of post-quantum cryptography (PQC) and the concept of quantum-ready security, which encompasses strategies, protocols, and algorithms designed to safeguard information against quantum attacks. We discuss the theoretical foundations of quantum computing, potential threat models, leading PQC approaches, and practical implementation challenges. Furthermore, the paper explores the roadmap for transitioning existing infrastructures to quantum-resistant systems and outlines the role of hybrid models that combine classical and post-quantum methods. Insights into standardization efforts and ongoing research highlight the urgency and complexity of achieving quantum-secure communication networks.

KEYWORDS: Post-Quantum Cryptography, Quantum-Ready Security, Quantum Computing, RSA, ECC, Lattice-Based Cryptography, Cybersecurity, Quantum Threat Models