Method and client for data transmission using near-noise bits

Abstract

The invention discloses methods for carrying out data transmission through application of information bits in a noise close region and a client. The method comprises the steps that two mutually communicating clients periodically carry out bit error rate measurement for each information bit in the noise close region; the two clients take the information bits in the noise close region as transmission bits, wherein the bit error rates of the information bits in the noise close region measured by the two clients satisfies a consistency requirement; and two clients carry out plaintext or ciphertextdata transmission through utilization of the transmission bits. Through application of the methods and the client, a risk that optical communication is attacked by noises is reduced, and secure communication stability, flexibility and university are improved.

Description

technical field [0001] The invention relates to the technical field of information security transmission, in particular to a method for data transmission using near-noise bits and a client. Background technique [0002] In recent years, information technology has developed rapidly, and optical fiber communication has developed rapidly. However, the transmission distance of optical cables is long and the line environment is complex. Existing optical communication cannot resist wire or node eavesdropping attacks. For example, the "Five Eyes" intelligence alliance led by the United States has Espionage on global submarine fiber optic cable communication systems, including China. Correspondingly, with the development of quantum computers with powerful deciphering capabilities, there are major hidden dangers of "interception, copying, and tampering" in the data content of optical communications, and the security threats and impacts of the physical layer have become increasingly p...

AI Technical Summary

Problems solved by technology

From the perspective of the integrity of the security system, the current system uses fixed information bits to transmit information, which has the risk of being attacked by noise, and the stability of secure communication, flexibility and versatility are not strong.

[0010] Therefore, the existing noise-encrypted secure optical communication technology does not consider the sensitivity of the near-noise bit of the multi-level modulation signal to noise, that is, the change of noise in different application scenarios causes the change of the data transmission characteristics of the near-noise bit, resulting in unstable communication security. , the ability to resist noise attacks is not strong

Insufficient flexibility of secure optical communication, that is, to flexibly select protocol parameters and functions according to channel status, business requirements and network load conditions, and to provide continuous and stable secure communication services for different services under different channel conditions.

Images