硬件编程方式下通信协议加密芯片的设计研究

针对分布式测控系统数据加密传输的应用要求，通过对DES 算法和Modbus 协议原理分析，给出了整个设计的原理框图，使用Verilog HDL 实现了DES 算法和通信协议的IP 核设计，最后对测控数据进行加密传输测试，结果显示该方法能较好的满足数据实时加密通信的指标要求，整个设计具有较好的现实意义和应用价值。
【关键词】Verilog 语言；DES 加密；Modbus 协议

A IP Core Interface Design of the data encryption system and Modbus Protocol
JIANG Cun-bo,SUN Chao-hua,TANG Bo,FU Han,DU Ting-ting (Electrical Engineering Department of GUT Guilin 541004 China) 【Abstract】In this paper,the author gives the iterative algorithm of the DES and Modbus Protocol in the hardware description language, with the requirements of the Distributed control system for transmission of data encryption, and completes the IP core design of the DES algorithm and the Modbus protocol with the help of the Verilog HDL Language and the FPGA chip EP2C5T144C6. at last,the test results to the network control module under the control of C8051F020 processor and the IP core chip show that this method can better meet the need of the real-time data encryption communication.
【Keywords】Verilog Language ；DES Encrypting；Modbus Protocol