RISC结构微处理器专用存储单元的研究与实现  

The research and implementation of special memory unit based on RISC microprocessor

作　　者：张琰[1] 戴紫彬[1] 

机构地区：[1]信息工程大学电子技术学院,河南郑州450004

出　　处：《电子技术应用》2008年第7期140-142,146,共4页Application of Electronic Technique

摘　　要：分析了RISC微处理器结构的特点。针对分组密码的操作特征在RISC结构密码专用微处理器中增加专用存储单元,用来专门存储密码运算的相关数据,同时扩展了指令集,极大地减少了执行密码算法时的指令条数,提高了密码运算效率,增强了其处理性能。The article analyses the architecture character of the RISC microprocessor and the features of block ciphers, adds the special memory unit in the RISC cipher specific instruction microprocessor, which stores related data about ciphers algorithm, otherwise extends the instruction set, reduces the number of instruction greatly when executing ciphers algorithm, improves the ciphers operation efficiency, enhances its processing performance.

关 键 词：RISC S盒 分组密码 密码处理 

分 类 号：TN949.7[电子电信—信号与信息处理] TP368.1[电子电信—信息与通信工程]