TY - EJOU AU - Roy, Pratik AU - Sahoo, Saptarshi AU - Mandal, Amit Kumar AU - Basu, Indranil TI - Quantum Cryptography–A Theoretical Overview T2 - Journal of Quantum Computing PY - 2021 VL - 3 IS - 4 SN - 2579-0145 AB - Quantum Key Distribution seems very promising as it offers unconditional security, that’s why it is being implemented by the tech giants of the networking industry and government. Having quantum phenomenon as a backbone, QKD protocols become indecipherable. Here we have focused on the complexities of quantum key distribution and how this technology has contributed to secure key communication. This article gives an updated overview of this technology and can serve as a guide to get familiar with the current trends of quantum cryptography. KW - Quantum information; quantum cryptography; quantum entanglement DO - 10.32604/jqc.2021.019864