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Quantum physical layer secret communication system and security analysis method thereof

A technology of secure communication and physical layer, applied in the field of quantum physical layer secure communication system and its security analysis, can solve problems such as information loss and bit error, and achieve the effect of strong anti-loss ability

Active Publication Date: 2020-03-13
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a quantum physical layer secure communication system and its security analysis method, aiming at overcoming the problem of using a single-photon light source as an information carrier in the existing communication process, channel loss and noise will cause information loss and bit error

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  • Quantum physical layer secret communication system and security analysis method thereof
  • Quantum physical layer secret communication system and security analysis method thereof
  • Quantum physical layer secret communication system and security analysis method thereof

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Embodiment Construction

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0024] The invention provides a quantum physical layer secure com...

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Abstract

The invention discloses a quantum physical layer secret communication system and a security analysis method thereof. The quantum physical layer secret communication system is characterized in that aninformation sender estimates a bit error rate according to an eavesdropping detection process, determines a coding scheme according to the bit error rate, and codes through quantum state operation ofphotons. An information receiver decodes by measuring the quantum state change of photons. The quantum state of photons is used for encoding, the amount of information obtained by an eavesdropper is limited, and therefore a quantum physical layer secret communication channel is constructed, and conditions needed by a physical layer safety communication legal channel are guaranteed based on the quantum mechanics basic principle.

Description

technical field [0001] This application relates to the field of secure communication, in particular to a quantum physical layer secure communication system and a security analysis method thereof. Background technique [0002] One-time pad encryption algorithm and physical layer secure communication are two known communication methods with information theory security. However, in the actual communication process, the classical communication method cannot effectively implement these two communication methods. For example, the distribution of keys and the construction of legal channels are difficult to complete through classical communication methods. [0003] Quantum communication is based on the basic principles of quantum mechanics, which can realize communication with provable security. The essential difference between it and classical communication is that it can monitor whether there is an eavesdropper in the channel in real time. Since the first quantum key distributio...

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Application Information

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IPC IPC(8): H04B10/70H04B10/85
CPCH04B10/70H04B10/85
Inventor 胡建勇杨柳吴舒啸陈瑞云秦成兵张国峰肖连团贾锁堂
Owner SHANXI UNIV