Security encryption authentication module for power distribution terminal communication and method thereof

Abstract

The invention discloses a security encryption authentication module for power distribution terminal communication and a method thereof. The security encryption authentication module comprises a main control chip, a commercial code algorithm encryption chip, a communication interface and a storage unit; the main control chip is connected with the commercial code algorithm encryption chip, the communication interface and the storage unit and receives message information of a front-end processor of a distribution master station and a distribution terminal through safe interface software of the distribution terminal to overall manages the other modules, and the commercial code algorithm encryption chip encrypts or decrypts the message information received by the main control chip. The special encryption chip is adopted in the security encryption authentication module, response speed is increased, and dependence on a CPU and an internal storage is reduced. Besides, communication security is greatly improved by means of bidirectional authentication of verifying each other's identity between the security encryption authentication module and a distribution security interaction gateway.

Description

technical field [0001] The invention relates to a security encryption authentication module, in particular to a security encryption authentication module for power distribution terminal communication, and also relates to an encryption authentication method for power distribution terminal communication based on the module, which belongs to the technical field of electric power communication. Background technique [0002] With the rapid development of national economic construction, electric power automation system has been widely used. A large number of power distribution terminals with power distribution network control functions are scattered and deployed in the power distribution network. The power distribution master station sends commands through the front-end computer to realize remote management of each power distribution terminal in the form of telemetry, remote signaling, and remote control, thereby indirectly realizing the control of the power distribution network. ...

AI Technical Summary

Problems solved by technology

[0006] 1) The existing power distribution terminal security communication technology is mainly realized in the power distribution terminal equipment, and the algorithm is mainly realized by software. The response speed of the algorithm is slow, occupying a large amount of CPU and memory resources, and affecting the working efficiency of the power distribution terminal equipment.

[0007] 2) The existing power distribution terminal security communication technology adopts one-way authentication, and its algorithm is a simple signature algorithm. The public key of the power distribution master station is used in the power distribution terminal to verify the signature in the control message sent by the power distribution master station , the standard communication message is still plain text, which is easy to be intercepted, collected and analyzed

[0008] 3) The existing power distribution terminal security communication technology uses the public key of the power distribution master station instead of a certificate as the carrier, and the validity period of the public key and the security of the electronic key cannot be fully guaranteed

[0009] 4) In the existing power distribution terminal security communication technology, the power distribution terminal does not have a corresponding key security storage medium, and does not use its own asymmetric key in the communication process, and the power distribution master station cannot verify the identity of the terminal, and there is forgery terminal risk

[0010] 5) Existing power distribution terminals usually adopt a technical framework based on business development as the core, and support multiple communication methods, but lack security protection, making it difficult to deal with increasingly rampant network attacks

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