Enhancing Security with Quantum Key Distribution: A Comparative Study of Protocols

Abstract

An innovative step forward in cryptography, Quantum Key Distribution (QKD) uses quantum physics to provide unmatched security. gives a comparative analysis of multiple QKD protocols, analyzing their advantages, disadvantages, and real-world applications; these protocols include BB84, E91, and continuous-variable QKD. We may determine which protocols are most suited for certain communication circumstances by comparing their security aspects, such as their capacity to withstand eavesdropping and how well they work in noisy environments. Furthermore, there are a number of obstacles that are now preventing QKD from being widely used, such as issues with scalability and integration with present infrastructures. The results imply that, despite QKD's unrivaled security benefits, the technology's future success will hinge on resolving technological hurdles and guaranteeing its smooth adoption across many sectors.