Quantum safety communication method based on synchronous random number information base information retrieval

Abstract

The invention discloses a quantum safety communication method based on synchronous random number information base information retrieval, which avoids channel loss and noise, has high efficiency, is safe and reliable, and is low in cost. The method comprises the following steps of: 1) establishing a synchronous random number information base with large data volume at a sending end and a receiving end of a quantum communication system; 2) determining the unit length of information units according to the data volume of the information base at the sending end, and establishing an information maintenance table for the information base simultaneously; 3) preprocessing communication data at the sending end; 4) searching an information unit which is the same as the preprocessed communication data in the information base at the sending end, and recording the searched index communication data; 5) compressing the index communication data to acquire index compressed data, and sending the index compressed data to the receiving end in a classical communication mode; 6) performing reverse operation on the received index compressed data by using the receiving end; and 7) updating the information base.

Description

technical field [0001] The invention belongs to the field of communication security and relates to a quantum security communication method, in particular to a quantum security communication method based on information retrieval of a synchronous random number information base. Background technique [0002] Quantum communication is a new interdisciplinary subject developed in the past two decades, and a new research field combining quantum theory and information theory. Recently, this subject has gradually moved from theory to experiment, and to practical development. Efficient and secure information transmission has attracted increasing attention. Based on the basic principles of quantum mechanics, quantum communication has the characteristics of high efficiency and absolute security. [0003] The practical application of quantum communication at this stage is generally to combine with classical networks to realize the communication of classical information, instead of usin...

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Problems solved by technology

[0003] The practical application of quantum communication at this stage is generally to combine with classical networks to realize the communication of classical information, instead of using quantum communication to directly transmit all classical information. The reason is that due to channel loss and noise, it is inefficient to use quantum communication to directly transmit all classical information. , Not safe enough, using quantum error correction codes may improve the efficiency of direct transmission, but it needs to generate complex quantum codes and multiple quantum error correction operations, the cost is too expensive

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