Data interaction method, master station, terminal and computer readable storage medium

Abstract

The invention discloses a data interaction method, a master station, a terminal and a computer readable storage medium, and the method comprises the steps that the master station sends a first messageto the terminal, wherein the first message is generated in a manner that the master station encrypts IDs of the master station and the terminal through employing an asymmetric encryption algorithm togenerate first private information, and combines the first private information with the IDs of the master station and the terminal; the master station receives a first response message sent by the terminal, wherein the first response message comprises a first random number generated by the terminal and second private information generated by the terminal based on a symmetric encryption algorithmand an asymmetric encryption algorithm; and the master station verifies the correctness of the second private information and the ID of the master station, performs key negotiation operation on the first random number by using a symmetric encryption algorithm to generate a second session key after the verification is passed, and stores the first session key when the second session key is the sameas the first session key. Therefore, the randomness, diversity and security of session key generation are ensured, and the security of data interaction is improved.

Description

technical field [0001] The present invention relates to the technical field of computer information security, in particular to a data interaction method, a master station, a terminal and a computer-readable storage medium. Background technique [0002] In recent years, the State Grid Corporation of China has been comprehensively promoting the construction of an electricity consumption information collection system. This system can achieve full coverage of all power users and gateways, and realize online monitoring of metering devices and real-time collection of important information such as user load, electricity, and voltage. , provide basic data for relevant systems in a timely, complete and accurate manner, provide support for analysis and decision-making in all aspects of business management, and provide an information basis for the realization of intelligent two-way interactive services. In order to realize the above functions, the system needs a large number of termina...

AI Technical Summary

Problems solved by technology

Although this method has an authentication operation before data interaction, this authentication method is easy to be cracked and replayed, and the security is low

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