基于FPGA的高性能可扩展SM4-GCM算法实现  

Implementation of FPGA-based High-performance and Scalable SM4-GCM Algorithm

作　　者：翟嘉琪 李斌[1] 周清雷[1,2] 陈晓杰 ZHAI Jia-qi;LI Bin;ZHOU Qing-lei;CHEN Xiao-jie(School of Information Engineering,Zhengzhou University,Zhengzhou 450001,China;State Key Laboratory of Mathematical Engineering and Advanced Computing,Zhengzhou 450001,China)

机构地区：[1]郑州大学信息工程学院,郑州450001 [2]数学工程与先进计算国家重点实验室,郑州450001

出　　处：《计算机科学》2022年第10期74-82,共9页Computer Science

基　　金：国家自然科学基金(61702518);国家重点研发计划“公共安全风险防控与应急技术装配”重点专项(2018XXXXXXX01)。

摘　　要：在大数据和5G技术蓬勃发展的背景下,高速通信系统中的信息加密成为了新的研究热点,如何在保证数据高安全性的同时,提高数据吞吐率,降低加密算法适配不同应用场景的难度成为了重要的研究课题。针对传统软件实现的SM4-GCM算法吞吐率小、难以在多变的5G及大数据场景下应用的问题,文中基于FPGA可重构的特点,深入剖析SM4-GCM算法的特征,利用Mastrovito算法、Karatsuba算法、快速求余算法,设计了两种高性能、数控分离、可扩展的电路结构,分别采用全流水线技术和四度并行技术对SM4-GCM算法进行加速优化,在保证高安全性的同时,达到了较高吞吐率,并且可灵活移植于各种应用场景。实验结果表明,所提出的两种方案中的单个SM4-GCM模块的吞吐率分别达到了28.16 Gbps和28.8 Gbps,在性能、可扩展性等方面均优于同类已发表的设计。In the context of vigorous development of big data and 5 G technology, information encryption in high-speed communication systems has become a new research hotspot.How to increase data throughput and reduce the difficulty of adapting encryption algorithms to different application scenarios while ensuring high data security has become important research topics.Aiming at the problem that traditional software’s SM4-GCM algorithm has a low throughput rate and is difficult to apply in changing 5 G and big data scenarios, this paper analyzes the characteristics of SM4-GCM algorithm based on the reconfigurable characteristics of FPGA,using Mastrovito, Karatsuba and fast remainder algorithms.Two high-performance, CNC-separated and expandable circuit structures are designed.Full-pipeline technology and four-degree parallel technology are used to accelerate the optimization of SM4-GCM algorithm.While ensuring high security, it can achieve a high throughput rate, and can be flexibly transplanted to various application scenarios.Experimental results show that the throughput rates of the proposed two solutions in this paper for a single SM4-GCM module have reach 28.16 Gbps and 28.8 Gbps, respectively, which are superior to similar published designs in terms of performance and scalability.

关 键 词：SM4 伽罗华/计数器模式 FPGA 高吞吐率 可扩展 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]