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Journal of Computational and Theoretical Nanoscience

Enhancement of Quantum Key Distribution Protocol BB84

Alharith A. Abdullah, Yasser H Jassem

Published Mar 1, 2019• 18 citations
Publisher
DOI
10.1166/jctn.2019.8009

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Quantum cryptography represents a swiftly advancing discipline with the capacity tofundamentally transform the landscape of data security. A prime application in thisdomain is quantum key distribution (QKD), which facilitates secure communication byleveraging the principles of quantum mechanics to generate and disseminatecryptographic keys. This study is concentrated on the methodologies for safeguardingcommunication and data transfer against cyber-attacks through the utilization ofquantum cryptography, particularly focusing on the quantum key distribution protocolknown as BB84. BB84 is the first protocol for QKD in the year 1984. In this paper wesimulated a new way to enhance quantum key distribution protocol BB84 by introducingmulti-basis encoding, enhanced error correction, and built-in authentication. Theadditional basis Y provides increased robustness against intercept resend attacks, and theauthentication mechanism ensures secure classical communication and hence there willbe no loss of information.
One promising way to use quantum information to secure everyday communication is through the distribution of quantum keys. By exchanging a secret key, the Quantum Key Distribution (QKD) approach allows two parties to communicate securely.BB84 protocol is among the most well-known QKD protocols. In this protocol, qubits are exchanged via a quantum channel between the sender and the receiver. This enables them to produce a shared key that is impenetrable to eavesdroppers and illustrate the fundamental ideas of QKD using current simulations and implementations. The results of this study demonstrate that the BB84 protocol is a highly secure QKD technique that has been investigated in great detail and used in a variety of contexts. Additionally, over the enhancements made to the BB84 protocol such as the use of advanced error correction techniques and decoy states to increase its security and usability is discussed. With an emphasis on the BB84 protocol in secure communication technologies, this study offers an extensive analysis of QKD systems overall.
Quantum Key Distribution (QKD) is a technique that enables secure communication between two parties by sharing a secret key. One of the most well-known QKD protocols is the BB84 protocol, proposed by Charles Bennett and Gilles Brassard in 1984. In this protocol, Alice and Bob use a quantum channel to exchange qubits, allowing them to generate a shared key that is resistant to eavesdropping. This paper presents a comparative study of existing QKD schemes, including the BB84 protocol, and highlights the advancements made in the BB84 protocol over the years. The study aims to provide a comprehensive overview of the different QKD schemes and their strengths and weaknesses and demonstrate QKDs working principles through existing simulations and implementations. Through this study, we show that the BB84 protocol is a highly secure QKD scheme that has been extensively studied and implemented in various settings. Furthermore, we discuss the improvements made to the BB84 protocol to enhance its security and practicality, including the use of decoy states and advanced error correction techniques. Overall, this paper provides a comprehensive analysis of QKD schemes, focusing on the BB84 protocol in secure communication technologies.