一块用于V2X通信的国密安全芯片设计与验证

Design and Verification of a National Security Chip for V2X Communication

随着车联网的不断发展,人们对车联网系统的安全性也提出了更高的要求。为了保护用户的隐私和人身安全,需要采用加解密算法对车联网通信进行保护。在中国,国密算法是被广泛采用的一种加解密算法,因此,本文设计了一块支持SM2、SM3、SM4算法,用于车联网场景的安全芯片,同时兼容RSA和ECC算法,完成了仿真及FPGA验证并使用55nm工艺库进行了流片。电路总面积为3.98mm2,约1.2×106个MOS管,外设最高工作频率为200MHz,可在2.14M时钟周期内完成一次257位二元扩域点乘运算,具有较高的面积利用率和兼容性。

With the continuous development of Telematics,there comes higher requirements for the security of Telematics systems.In order to protect the privacy and personal safety of users,encryption and decryption algorithms need to be used to protect the Telematics communication.In China,the SM algorithm is a widely adopted encryption and decryption algorithm.Therefore,this paper designs a security chip that supports SM2,SM3,and SM4 algorithms,also compatible with RSA and ECC algorithms.The simulation and FPGA verification have been completed and taped out using the 55nm process library.The total area of the circuit is 3.98 mm2,with about 1.2×106 MOS tubes,the maximum peripheral operating frequency is 200 MHz,which can complete a 257-bit binary extended domain dot product operation in 2.14M clock cycles with high area utilization and compatibility.