国产商用密码技术在AFC系统票卡读写器的设计与应用

Design and application of China commercial cryptography technology in AFC system ticket processing unit

为提高城市轨道交通AFC系统中密码技术的自主可控程度,尝试在AFC系统中应用符合S M4标准的国产商用密码技术。研发一款支持国密算法的读写器是实现国密算法在AFC领域应用的关键。文章详细分析读写器的软件、硬件开发特点及测试方法。测试结果表明,新研发的国密读写器可支持SM4加密算法,且各项性能满足城市轨道交通AFC系统建设和运营的需求。

To improve the autonomous control degree of cryptography in urban rail transit automatic fare collection(AFC)systems,it is the first time to apply China cryptography SM4 standard in AFC system.The key to realize application of commercial cryptography in AFC system is to develop a ticket processing unit(TPU)supporting China commercial cryptography standard.This paper focuses on the realization of software features,hardware features and test methods.The test results show that the newly developed TPU can support SM4 technology and meet the requirements of urban rail transit AFC system construction and operation.