Power grid embedded terminal fuzzy test method aiming at GOOSE protocol

The invention provides a power grid embedded terminal fuzzy test method for a GOOSE protocol, and the method comprises the steps: designing three mutation strategies based on a GOOSE message field type, an ASN.1 coding mode and bit flipping, carrying out the GOOSE sample message mutation; the invention provides an anomaly monitoring method based on heartbeat messages and system operation information by considering a GOOSE protocol transmission mechanism and the environmental characteristics of an intelligent substation, so as to effectively monitor the abnormal condition of target equipment in a fuzzy test process. By adopting the scheme provided by the invention, the security vulnerabilities of embedded terminals, such as intelligent terminals, measurement and control terminals and the like, which communicate by using the GOOSE protocol in the intelligent substation in the protocol analysis process can be effectively mined. 本发明提出一种针对GOOSE协议的电网嵌入式终端模糊测试方法，所述方法设计了基于GOOSE报文字段类型、ASN.1编码方式和比特翻转三类变异策略，进行GOOSE样本报文变