Research and implementation of secure access technology for distribution terminal

Abstract:
As more and more distribution terminals are connected to the distribution automation network, it brings great risks to the distribution network. The security access of distribution terminals has become a key issue in power information security. In this paper, by analyzing the security risk of distribution terminal access, aiming at the security requirements of intelligent distribution network, this paper researches and implements the security access protection technology of intelligent distribution terminal based on security encryption algorithm, and realizes the connection between the main station and terminal of intelligent distribution network. It solves the security problem during the access process of the smart power distribution terminal, and ensures that the smart power distribution terminal can securely access the intranet as a safe and trusted internal user. In this paper, a secure encryption algorithm combining RSA and AES is proposed. The AES algorithm is used to encrypt and transmit data, and the RSA algorithm is used to encrypt and transmit the AES key. Combining the respective characteristics of the two encryption algorithms, the advantages and disadvantages are avoided.