The security processor uses the physical key as the root of trust to develop a secure boot verification process, a higher security encryption and decryption process in the security module, etc., and can prevent malicious access to the general core, implant malicious programs and Side attack. In addition, we also use memory protection mechanisms to protect confidential information. Then, by integrating a wireless transceiver with a secure wake-up mechanism, the system energy consumption and communication delay are reduced, and a system with low power consumption and high security is realized.