To verify embedded system software integrity with TCM and FPGA

Embedded systems have become more and more important in our lives. However almost the security protections dedicates in the PC system defense, and there is little effort in the research of the embedded systems security. Embedded systems are in danger. What is more, there are varied kinds of embedded systems platforms, which exacerbate the protection in the embedded systems. This paper is going to present a security solution which is based on the TCM and FPGA. TCM contains efficient trusted software system but it has the flash-guard flaw in the embedded systems application. One of the main responsibilities of our systems is the protection of flash integrity, which is called flash guard embedded system (FGES). In this particle, we will specially analyze the security of the FGES when it meets all kinds of vicious attacks. FGES could also easily update for different security level safeguard.