Embedded equipment terminal security protection method, device and system for smart power grid

The invention discloses an embedded equipment terminal security protection method, device and system for a smart power grid, and the method employs a set of omnibearing trusted measurement and security protection scheme with the characteristics of a dual-system architecture and a star trust architecture, and comprises a threat model. The model assumes that an attacker of the Internet of Things terminal can grasp related information of an attack target in the following mode; according to the overall scheme framework, the core idea is to construct a trusted software base based on a TF card, and the functions of identity verification, integrity verification and data storage of the trusted software base are achieved through encryption and decryption algorithm services in the TF card; the signature verification based on the TF card is mainly used for distinguishing different application programs, and the signature comprises identity identification information of an APP developer. The method is suitable for detecti