防护HID攻击的USB硬件外设的设计研究OA

Aiming at the issue that existing operating system security mechanisms can not securely detect and protect the underlying firmware of USB devices,this research explores how to monitor and prevent HID malicious attack behavior based on a comparative research on various defense means.Based on the STM32F03 single-chip microcomputer,it designs a hardware peripheral that can automatically monitor USB devices and intercept HID attacks in a timely manner.The protection algorithm of the device is designed and optimized,and targeted protection testing experiments are conducted.The experimental results show that the device can implement efficient and automatic interception when necessary without affecting the normal operation of USB devices,thereby protecting the security of the computer and its internal files.