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中国邮电高校学报：英文版

On Simulation of Quantum Cryptography

ZhaoShengmei, LIFei

Published Jan 1, 2002• 0 citations
OpenAlex

Abstract

The simulation of quantum cryptography on classical computers is discussed in this paper. The methods to express the preparation and measurement of quantum states on current computers are given and the basic algorithms for simulating the quantum key distribution protocols are presented. All the simulating results of each protocol are given and compared with the theoretic one. It is shown that the simulation results are completely tallied with the theoretic one.

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The simulation of quantum cryptography on classical computers is discussed in this paper. The methods to express the preparation and measurement of quantum states on current computers are given and the basic algorithms for simulating the quantum key distribution protocols are presented. All the simulating results of each protocol are given and compared with the theoretic one. It is shown that the simulation results are completely tallied with the theoretic one.
The last decade, the evolution in quantum computing has been enormous and real and reliable quantum computers are being developed quickly. One of the consequences of the upcoming quantum era is to make key distribution protocols insecure, as most of them are based on discrete algorithm problems. On the other hand, quantum computing provides a powerful and prominent tool for the safe transmission of information and cryptographic schemes and many of them have already been proposed. In this work, we discuss about quantum cryptography and we present certain quantum key distribution protocols. We also discuss about ‘potential attacks that can be performed against the quantum cryptographic schemes which are based on quantum system’s imperfections and loopholes.
Quantum cryptography is a revolutionary field that applies the principles of quantum mechanics to provide secure communication channels. One of the most popular techniques in quantum cryptography is Quantum Key Distribution, which uses quantum states to deliver secure keys. The main advantage of quantum cryptography is that it offers protection against eavesdropping and tampering, which is not possible with classical encryption methods. This is because copying data in a quantum state is virtually impossible, and any attempt to intercept or manipulate the data will result in its complete alteration. As a result, any third-party interference can be detected quickly. Traditional cryptographic algorithms used in modern cryptography are vulnerable to attacks due to the evolution of quantum computers and mathematical advances in the decomposition of large integers. Therefore, the solution to address this vulnerability is to apply the principles of quantum physics to cryptography. The aim of the paper is to survey the current scientific achievements in the field of quantum cryptography and to present some challenging issues.
Quantum computing and quantum cryptography are two areas of research that have the potential to transform modern computing and communication. Quantum computing promises to solve computational problems that are beyond the reach of classical computers, while quantum cryptography provides a way to secure communication channels that is immune to eavesdropping. Quantum cryptography is one of the emerging topics in the field of computer industry. This article focuses on quantum cryptography and how this technology makes a valuable contribution to an intensive defense strategy of completely secure key distribution. The scope of this article covers the weaknesses of modern digital cryptographic systems, the basic concepts of quantum cryptography, the practical implementations of this technology, and its limitations. , and finally the future direction that quantum cryptography is headed. We describe the result of an apparatus and protocol designed to perform quantum key distribution, whereby two users do not share any secret information (no private or public keys are known). previously known) initially exchanges a random quantum transmission consisting of veryweakly polarized light rays. In particular, readers can explore the following topics in depth: current cryptographic schemes (symmetric and asymmetric), the difference between quantum and classical computing, challenges of quantum computing, quantum algorithms (Shor and Grover), public key cryptographic schemes affected, symmetry affected schemes, impact on hash functions and post-quantum cryptography
The demand for security is growing exponentially in every field of developing technology. Over the decades, classical and modern cryptographic algorithms have served this need with an appreciable performance. But with the realization of threats to this backbone cryptography, researchers have developed a keen interest in Quantum cryptography(QC). QC provides an unconditionally secure means of information transfer through the basic laws of quantum mechanics. Quantum key distribution(QKD) is one of the most developed application of QC. But due to primitive technology it is still facing many developmental glitches. Although there is a fare amount of QKD experimentation available, the experiments are limited with specific set of parameters. To observe the effect of parameter variation it is essential to model the QKD process. This paper discusses the simulation approach for understanding and testing the working of practical prepare and measure QKD protocol. The developed model is tested with the experimental test data from three QKD setups. Performance parameters such as quantum bit error rate and secret key rate are analyzed. It is observed that the simulated results matches with the experimental results.
By utilizing concepts from quantum physics like entanglement and superposition, quantum cryptography is revolutionizing data security. This study focuses on the application of classical computational models for simulation-based analysis of Quantum Key Distribution (QKD) protocols, namely BB84 and E91. By taking use of quantum features, QKD makes secure key exchange possible and guarantees that any effort at eavesdropping may be identified because of the disruption of quantum states. In order to assess how quantum communication channels behave under different noise and attack scenarios, the study models and simulates these channels. The study evaluates the efficacy and robustness of BB84 and E91 protocols in practical network settings by contrasting their performance and error tolerance. In order to determine if integrating quantum-secured systems with current classical infrastructures is feasible, scalability issues are also investigated. These simulations’ outcomes shed light on feasible security levels, resource needs, and workable deployment tactics. In the end, this research highlights how quantum cryptography may advance the basis for next-generation secure information networks by bridging the gap between theoretical quantum security models and real-world communication systems with the use of strong simulation frameworks.