IEC62351 (International Electrotechnical Commission 62351)-based process layer safety test system and method

Abstract

The invention aims to provide an IEC62351 (International Electrotechnical Commission 62351)-based process layer safety test system which effectively verifies whether process layer network equipment has tamper-proof and anti-replay safety functions. The system consists of the following modules: a human-computer interface UI (User Interface), a message editing module, a storage module, an SCD (namely substation configuration description) analysis module and a communication module. The invention also provides an IEC62351 (International Electrotechnical Commission 62351)-based process layer safety test method. By using the system and the method, an IEC62351 specification-based process layer message can be edited. The EC62351 specification-based process layer message is edited according to the principle that the message check and signature algorithm is increased based on the EC62351 specification-based process layer message, so the message meets the EC62351 specification. Any field of the edited EC62351 specification-based message can be modified. Thus the message tamper attack and message replay attack to to-be-tested equipment can be simulated to verify whether the to-be-tested equipment has defense capacity.

Description

Technical field [0001] The present invention relates to the field of electric power engineering and debugging, in particular to the field of electric power business process-level security, and in particular to a process-level security test method and system based on IEC62351. Background technique [0002] With the continuous popularization and promotion of intelligent substations, the degree of informatization and automation of power systems continues to increase. However, the lack of protocol security makes it possible for an attacker to bypass the peripheral physical protection measures and directly enter the dispatch center or substation, and then directly control the field equipment through the communication protocol. Safety, safety protection and reliability have always been important issues in system design and operation in the power industry. The security reform based on the IEC 62351 protocol has played a very important role in preventing the above risks. [0003] At pres...

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Problems solved by technology

[0003] At present, the security transformation work based on the IEC61850 protocol is in the experimental verification stage, but there is still a lack of effective targeted testing methods

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