基于可配置处理器的AES算法设计  

AES Algorithm Based on Configuarable Processor

作　　者：黄光红[1] 洪一[1,2] 耿锐[1] 

机构地区：[1]华东电子工程研究所,合肥230031 [2]中国科学技术大学

出　　处：《单片机与嵌入式系统应用》2010年第3期52-54,共3页Microcontrollers & Embedded Systems

摘　　要：研究高级加密标准AES算法的加密解密流程,分析算法的执行热点,并提出一种基于可配置处理器的优化方法,设计适合于AES算法的处理器配置,实现多条AES算法专用指令,并采用硬件查找表技术提高新处理器算法对热点的执行能力。实验结果证明,此方法大大减少了多个热点的执行周期数,提高了AES算法的执行效率。This paper researches the encryption and decryption process of the advanced standard AES algorithm, and analyzes the execution hot points of the algorithm. The paper adopts a method based on configurable processor, designing a processor configuration to fit AES, implementing multiple special instructions for AES, and using hardware look-up table to improve the execution performance of the new processor algorithm on the hot points. Experimental result proves that the method decreases the number of execution cycles of the hot points and improves the execution efficiency of AES.

关 键 词：加密 AES算法 可配置 Xtensa处理器 TIE语言 

分 类 号：TN918.1[电子电信—通信与信息系统]