Dynamically Reconfigurable Encryption System of the AES

作     者：WANG Youren WANG Li YAO Rui ZHANG Zhai CUI Jiang 

作者机构：College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 Jiangsu China 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2006年第11卷第6期

页      面：1569-1572页

学科分类：081203[工学-计算机应用技术] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foun-dation of China (60374008) 

主　　题：dynamically reconfigurable hardware field programmable gate array (FPGA) advanced encryption standard (AES) algorithm cipher key 

摘      要：Reconfigurable computing has grown to become an important and large field of research, it offers advantages over traditional hardware and software implementations of computational algorithms. The Advanced Encryption Standard （AES） algorithm is widely applied in government department and commerce. This paper analyzed the AES algorithms with different cipher keys, adopted a novel key scheduler that generated the round key real-time, proposed a dynamically reconfigurable encryption system which supported the AES algorithm with different cipher keys, and designed the architecture of the reconfigurable system. The dynamically reconfigurable AES system had been realized on FPGA. The result proves that the reconfigurable AES system is flexible, lower cost and high security level.