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Computer and Information Technology

Quantum Cryptography and Its Research Progress

Lin Xiong

Published Jan 1, 2012• 0 citations
OpenAlex

Abstract

China's first quantum cryptography network has been successfully tested in Beijing,the Chinese Academy of Sciences announced on April 2,2007.It is the only fully-connected quantum network that could make simultaneous communications without any relay ever reported in the world,according to experts.The feat is a crucial step towards the practical usage of quantum cryptography from the point-to-point network.The success of this experiment,laid the foundation for the development of quantum Internet.This paper describes the generation of quantum cryptography,the basic principle of quantum cryptography in the field of experimental research and research results,and finally pointed out that quantum cryptography will be an important technology to protect the security of network communication.

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China's first quantum cryptography network has been successfully tested in Beijing,the Chinese Academy of Sciences announced on April 2,2007.It is the only fully-connected quantum network that could make simultaneous communications without any relay ever reported in the world,according to experts.The feat is a crucial step towards the practical usage of quantum cryptography from the point-to-point network.The success of this experiment,laid the foundation for the development of quantum Internet.This paper describes the generation of quantum cryptography,the basic principle of quantum cryptography in the field of experimental research and research results,and finally pointed out that quantum cryptography will be an important technology to protect the security of network communication.
The uses of computer communications networks technologies have increased the incidents of computer abuse. Because of these incidents, most organizations facing pressure to protect their assets. Most digital networks generally rely on modern cryptosystems to secure the confidentiality and integrity of traffic carried across the network. The current modern cryptosystems based on mathematical model introduce potential security holes related to technological progress of computing power, the key refresh rate and key expansion ratio, the most crucial parameters in the security of any cryptographic techniques. For that reason efforts have been made to establish new foundation for cryptography science in the computer communications networks. One of these efforts has led to the development of quantum cryptography technology, whose security relies on the laws of quantum mechanics [1,2,3,20, 24]. This research paper concentrates on quantum cryptography, and how this technology contributes to the network security. The scope of this research paper is to cover the weaknesses, and the security pitfalls in modern cryptography, fundamental concepts of quantum cryptography, the real - world application implementation of this technology, finally the future direction in which the quantum cryptography is headed forwards.
Quantum cryptography is a technology that ensures ultimate security. Compared to current cryptography that could be defeated by by the development of an ultra high-speed computer, quantum cryptography ensures secure communication because it is based on the fundamental physical laws. It is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. Quantum cryptography is a new method for secret communications offering the ultimate security assurance of the inviolability of a Law of Nature. The quantum cryptography relies relies on two important elements of quantum mechanics-the Heisenberg Uncertainty principle and the principle of photon polarization. This research paper concentrates on the principle of quantum cryptography, and how this technology contributes to the network security. This paper outlines the real world application implementation of this technology and the future direction in which quantum cryptography accelerates.
Quantum cryptography is an emerging technology in which two parties can secure network communications by applying the phenomena of quantum physics. The security of these transmissions is based on the inviolability of the laws of quantum mechanics. Quantum cryptography was born in the early seventies when Steven Wiesner wrote "Conjugate Coding", which took more than ten years to end this paper. The quantum cryptography relies on two important elements of quantum mechanics - the Heisenberg Uncertainty principle and the principle of photon polarization. The Heisenberg Uncertainty principle states that, it is not possible to measure the quantum state of any system without distributing that system. The principle of photon polarization states that, an eavesdropper can not copy unknown qubits i.e. unknown quantum states, due to no-cloning theorem which was first presented by Wootters and Zurek in 1982. This research paper concentrates on the theory of quantum cryptography, and how this technology contributes to the network security. This research paper summarizes the current state of quantum cryptography, and the real-world application implementation of this technology, and finally the future direction in which the quantum cryptography is headed forwards.
With the development of computer and communication technology, many people pay close attention to information security technology. Considering that the current encryption has many malpractices, some persons turn attention to quantum cryptography. Quantum Key Distribution is based on the principles of Heisenberg's uncertainty which guarantees that no eavesdropper can escape detection. According to this principle, this paper makes a study of the quantum cryptography technique, discusses the course of quantum key production and distribution in the quantum communication and the principle of quantum key distribution protocol in the communication by combining the application of quantum key protocol in the communication network. Current experimental progress on this aspect is introduced, existing problems are analyzed and some constructive suggestions are proposed. Finally, the developing trend for the theory of quantum password is prospected.
As a strategic frontier technology, quantum cryptography and quantum computation are closely related to national security and forward-looking technology strategy, and the application of quantum computation in the future will definitely promote the large-scale application of quantum networks. We briefly review the research progress of quantum secure communication and quantum computing and focus on the introduction of the high-performance quantum key distribution (QKD) terminal, quantum network, basic scientific problems of quantum computing in quantum chip devices and qubits manipulation and some practical important quantum technologies such as the integration of quantum and classical communication.