Power distribution automation information encryption method based on quantum reinforcement

Abstract

The invention discloses a distribution automation information encryption method based on quantum reinforcement, and the method comprises the steps: presetting a key pool A in a master station and all terminals, independently setting a key pool B in the master station, pre-storing a key in the key pool A, pre-storing or storing a newly added key in the key pool B, and storing the newly added key in the key pool B, wherein the keys are quantum keys converted after quantum random numbers are generated by a quantum random number generator; distributing key packets: the terminals communicate with the master station, the terminals and the master station jointly select a key a from the key pool A, the master station extracts part of keys from the key pool B to form a key packet, and the key packet is encrypted by using the key a and sent to all the terminals; the terminal decrypting the received key packet by using the key a, extracting the key in the key packet for performing secondary encryption and decryption on the state grid encrypted message, and marking the key in the key packet after being used; and after all the keys of the key packet in the terminal are marked, a key a being selected from the key pool A again, and key packet distribution being performed again.

Description

technical field [0001] The invention relates to the field of information encryption, in particular to an information encryption method for distribution automation based on quantum reinforcement. Background technique [0002] Distribution automation terminals are the infrastructure for building smart grids. In order to enhance its ability to resist high-performance computing attacks, solve distribution terminal security issues, and prevent a system accident or large-scale power outage caused by malicious attacks or sabotage, State Grid Corporation of China There are a large number of power measurement and control equipment exposed in the public environment or using public network communication in the power grid information system. These equipment have potential security risks of group control power outages after being hacked and cracked. [0003] Encryption technologies in the prior art can be divided into two categories, namely symmetric encryption technology and asymmetric ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the security and applicability of the encryption methods in the prior art cannot be balanced, the present invention provides a distribution automation information encryption method based on quantum reinforcement, which uses the preset key to encrypt by presetting the quantum key pool The key package is used for distribution, and the preset key is the same as the private key in asymmetric encryption, so the security is extremely high. At the same time, with the help of the unpredictable nature of quantum random numbers, it greatly reduces the cracking of the preset key itself possibility of

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