Entangled Shields: Securing Digital Systems in the Quantum Cryptographic Revolution

Year : 2025 | Volume : 12 | Issue : 02 | Page : 33 43
    By

    Prerna Santosh Ahire,

  • Ranjana P. Dahake,

  1. Student, Department of Computer Engineering, MET’s Bhujbal Knowledge City (Affiliated to Savitribai Phule Pune University, Pune), Nashik, Maharashtra, India
  2. Associate Professor, Department of Computer Engineering, MET’s Bhujbal Knowledge City (Affiliated to Savitribai Phule Pune University, Pune), Nashik, Maharashtra, India

Abstract

Quantum computing utilizing principles of superposition and entanglement is poised to revolutionize the computational landscape, presenting unprecedented challenges and opportunities across various disciplines. Among these, cryptography stands at the forefront due to its reliance on computational hardness assumptions, which Quantum algorithms, such as Grover’s and Shor’s, can efficiently exploit. This study explores theoretical foundations and practical applications of quantum-safe cryptographic primitives, such as lattice-based cryptography, hash-based signature schemes, code-based systems, and multivariate polynomial cryptography. Additionally, the discussion includes the role of Quantum Key Distribution (QKD) as a complementary tool for ensuring secure communication, emphasizing its reliance on quantum mechanics for unconditional security. Furthermore, this work presents a hybrid framework combining post-quantum cryptographic algorithms with Quantum Key Distribution protocols to ensure resilience against both classical and quantum adversaries. To clarify these concepts, detailed mathematical models, algorithmic complexity analyses, and illustrative figures are presented to demonstrate the quantum advantage and its implications for cryptographic protocols, with real-world applications such as secure financial transactions and digital identities. This study also explores the ethical and policy considerations of transitioning to quantum-secure systems, focusing on global collaboration and standardization efforts by addressing the technical, practical, and societal aspects of quantum computing in cryptography. This research aims to be a valuable reference for scholars, professionals, and decision-makers alike. The findings emphasize the critical need for developing and implementing quantum-safe solutions to safeguard the security and privacy of future digital ecosystems.

Keywords: Quantum-based computation, cryptographic security in quantum era, post-quantum encryption techniques, quantum computational algorithms, integer factorization via Shor’s method, search optimization through Grover’s technique

[This article belongs to Recent Trends in Parallel Computing ]

How to cite this article:
Prerna Santosh Ahire, Ranjana P. Dahake. Entangled Shields: Securing Digital Systems in the Quantum Cryptographic Revolution. Recent Trends in Parallel Computing. 2025; 12(02):33-43.
How to cite this URL:
Prerna Santosh Ahire, Ranjana P. Dahake. Entangled Shields: Securing Digital Systems in the Quantum Cryptographic Revolution. Recent Trends in Parallel Computing. 2025; 12(02):33-43. Available from: https://journals.stmjournals.com/rtpc/article=2025/view=222278


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Regular Issue Subscription Review Article
Volume 12
Issue 02
Received 13/05/2025
Accepted 17/05/2025
Published 04/06/2025
Publication Time 22 Days
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