SHA-2算法在多核密码处理器上的实现研究  

RESEARCH ON REALISATION OF SHA-2 ON MULTI-CORE CIPHER PROCESSORS

作　　者：曲思源[1] 戴紫彬[2] 李伟[1,2] 戴强[1] 

机构地区：[1]解放军信息工程大学,河南郑州450002 [2]复旦大学专用集成电路与系统国家实验室,上海201203

出　　处：《计算机应用与软件》2016年第4期51-55,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(61404175)

摘　　要：为了找出一种适合多核密码处理器的SHA-2算法高速实现方式,提高SHA-2算法在多核密码处理器上的执行速度。首先研究SHA-256、SHA-512算法在密码处理器上的实现方式,并研究多核密码处理器的结构特点与数据传输方式,分析SHA-2算法在多核上的高速实现原理。然后对SHA-2算法进行任务划分,提出SHA-2在多核密码处理器上的调度与映射算法并使用软件实现调度算法。在ASIC上的仿真验证结果表明,经优化后的SHA-2算法在多核上并行执行吞吐率有了较大提升,满足性能上的需求。In order to find a way suitable for SHA-2 algorithm operating on multi-core cipher processors in high speed and to improve the speed of SHA-2 operating on multi-core cipher processors,we first studied the realisation approach of SHA-256 and SHA-512 algorithms operating on a cipher processor,and studied the structural features and data transmission mode of multi-core cipher processors,as well as analysed the principles of high-speed implementation of SHA-2 on multi-core cipher processors. Then we made the tasks partition on SHA-2 algorithm and put forward the scheduling and mapping algorithms of SHA-2 algorithm on multi-core processors,and implemented the scheduling algorithm by software. Results of simulation verification on ASIC showed that the optimised SHA-2 algorithm gained much higher improvement in throughput of operating on multi-core cipher processors and satisfied the need of performance.

关 键 词：SHA-2 多核 密码处理器 任务调度与映射 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]