Reception secret key sharing system and method based on optical communication

Abstract

The invention relates to the information security field of optical communication and discloses reception secret key sharing system and method based on optical communication. The method comprises the steps that a first terminal A generates a public YA and sends the YA by an optical signal; a second terminal B converts the received optical signal into an electric signal and obtains the YA, generates a public YB, calculates to obtain a secret key K and a message digest H thereof, and then sends the YB and the message digest H by the optical signal; the first terminal A converts the received optical signal into an electric signal, obtains the YB and the message digest H, obtains K' by calculation, calculates the message digest and compares the same to H, so as to ensure successful sharing of the secret keys of the two terminals. By utilizing the system and method, the secret keys are prevented from direct exposure in an insecure channel, security of secret key transmission is improved, so that the security of data encrypted on a basis of the secret keys is enhanced.

Description

technical field [0001] The invention relates to the technical field of optical communication information security, in particular to a guest key sharing system and method based on optical communication. Background technique [0002] Since the 21st century, with the continuous explosive growth of the Internet and related services, the demand for telecommunication capacity has been increasing. Among them, optical fiber communication has attracted much attention because of its advantages such as low loss, high capacity and anti-electromagnetic interference. However, with the development of cable eavesdropping technology, people are more and more worried about communication security. At present, the only way to actively prevent the transmitted information from being eavesdropped is to encrypt the transmitted information. Common optical communication encryption technologies include algorithmic encryption, chaotic encryption, and quantum encryption. At present, the latter two are ...

AI Technical Summary

Problems solved by technology

Common optical communication encryption technologies include algorithmic encryption, chaotic encryption, and quantum encryption. At present, the latter two are still in the research stage and cannot be maturely applied.

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