Author : Praveer Dubey and Ompal Yadav

Quantum Cryptography is an approach to securing communications by applying the phenomena of quantum physics. Unlike traditional classical cryptography, which uses mathematical techniques to restrict eavesdroppers, quantum cryptography is focused on the physics of information. The development of quantum cryptography was motivated by the short-comings of classical cryptographic methods, which can be classified as either public-key or secret-key Methods. There are classical solutions to insecure communication all rely on making some or assumption, about the computational power of a cheater, about the number of cheaters, or something of this kind. Based on quantum key distribution, one might hope that a quantum computer might allow us to weaken or remove these assumptions.

Keywords: Single-photon source; Photon statistics; Quantum dots; Quantum key distribution (QKD)

Article published in International Journal of Current Engineering and Technology, Vol.10, No.6 (Nov/Dec 2020)