A security embedded system base on TCM and FPGA

Embedded systems became more and more pervasive in our world, whereas the security problem severely influence its credibility. This paper presented a security solution for embedded systems, which is called TFSES (security embedded systems base on TCM and FPGA). In this solution, a security FPGA checked the integrity of instructions and data in flash chip before running of the embedded processor. The result of the integrity checking was sent to TPM chip. While integrity result indicated that the content in the flash chip was modified, TCM will reject to provide trust computing services invoked from embedded processor.