同密架构下ECMG的设计与实现

Design and Implementation of ECMG in Simulcrypt Architecture

在同密技术下进行ECMG硬件实现,相比于软件实现,该ECMG加密速度快、安全度高。将ECMG分为三大模块:加密、ECM包生成和ECMG与加扰器通信模块。利用FPGA实现前两大模块,在基于Nios II的SOPC系统上实现通信模块,下载程序测试,结果表明该设计符合应用要求。

The hardware implementation of ECMG based on simulcrypt is described in this paper. Compared to the software implementation, this ECMG has high speed of encryption and high degree of safety. In this paper, ECMG can be divided into three parts, encryption, the creation of ECM package and the communication with scrambler. The front two parts are accomplished on FPGA and the last one of communication on SOPC is based on Nios Ⅱ. Then downloading and testing the program, the result shows that this design corresponds to the demand of application.