Quantum Key Distribution Protocol with Enhanced Eavesdropper Detection Ability

Quantum key distribution protocols printed a prominent mark in the old path of digital communication by making it even more secure. Unlike its classical counterpart, quantum key distribution protocols exploit the key principles of quantum elements, such as superposition and entanglement, to expose the intrusion in an efficient way. This paper presents a prepare and measure quantum key distribution protocol that detects the eavesdropper more efficiently by inflating bit mismatch between the sender and receiver. The proposed work achieves bit mismatch up to 62.5 percent while Eve is present in the quantum communication channel. The improvement is remarkable in comparison with the classical BB84 protocol, which has a bit mismatch up to 37.5 percent in presence of Eve.