基于FPGA的电力巡线无人机硬件加密通信方法

电力巡检无人机无线通信主要依赖跳频通信机制予以防护，攻击方可监听单频点获取跳频序列进行破解，夺取无人机控制权。针对专业级巡线无人机作业场景下的安全防护需求，提出了基于现场可编程门阵列（field-programmable gate array，FPGA）的硬件加密通信与认证防护方法。该方法模仿智能电表硬件加密通信方式，为无人机配置嵌入式加/解密模块（embedded secure access module，ESAM）；在无人机起飞配对时，将该无人机的密钥传输至遥控器，并按所给密钥进行FPGA重编程，飞行控制中即可实现基于ESAM模块和FPGA对称硬件加密方式的身份认证与加密通信，保障专业级巡线无人机的安全。所提方法在无人机端及遥控器端均为硬件加/解密，可满足无人机实时指令响应速度需求。

FPGA-Based Hardware Encryption of Power Line Patrol Drones

Communication of power line patrol UAV is currently protected with frequency hopping. However, malicious adversaries can steal sequence of frequency hopping and control the patrol UAV. In view of the security protection needs of patrol UAV in the process of field inspection, this paper proposes a method for hardware encryption communication and authentication protection based on field-programmable gate array (FPGA). The patrol UAV is equipped with an embedded secure access module (ESAM) using fix encryption. The remote controller gets the symmetric secret key from the management system of patrol UAV. Thereafter, the secret key is embedded in the FPGA-based encryption system, and the communication between UAV and remote controller can be protected with hardware-based encryption. The proposed approach is of hardware encryption/decryption for both UAV and remote controller, and can meet the security protection needs of UAVs with stringent real-time requirement.