79Chapter 4 Quantum secrets: safeguarding privacy in computational protocols
Parul Gandhi, Ms. Priyanka Sharma, Ms. Aastha Budhiraja, Ritu Sachdeva · 2025
Quantum computing’s potential to upend established cryptographic systems as it develops seriously threatens data security and privacy. With an emphasis on creating cryptographic systems resistant to quantum adversaries, “Quantum secrets: Safeguarding privacy in computational protocols” investigates the relationship between safe computing and quantum physics. This study looks into privacy-preserving quantum algorithms that use concepts like superposition and entanglement to improve security and quantum-safe encryption methods like lattice-based cryptography and quantum key distribution. This research attempts to connect theoretical developments with real-world implementations to give a thorough picture of the developing field of quantum-secure technology. Although quantum computing has the potential to completely transform computing power, privacy and data security are also seriously threatened. Once thought to be impenetrable, classical cryptographic techniques are now susceptible to quantum algorithms like Shor’s and Grover’s, which calls for a paradigm change in how sensitive data is protected. We also discuss recent developments in quantum homomorphic encryption and how they affect safe multi-party computation. In order to ensure privacy and security in the age of quantum supremacy, this article presents a path for incorporating quantum resilience into computing protocols by addressing the theoretical and practical elements of these quantum technologies. In a quantum environment, this study explores quantum cryptographic approaches such secure multi-party computation, post-quantum cryptography, and quantum key distribution. Through establishing a connection between quantum theory and real-world privacy applications, this research attempts to offer a thorough summary of new approaches to protecting private data in the quantum age.