The Improvement of MixColumns0 in the AES

摘要：

AES (Advanced Encryption Standard) is a new generation of advanced data encryption standard,which has been applied widely in the process of encryption and decryption with its high-efficiency,concision and high safety. In order to reduce the implementation complexity of the AES algorithm and improve its efficiency,this paper analyzes the MixColumnsO function,the most time-consuming round in the round transformation of AES,and then proposes a new method that improves the function of MixColumnsQ,namely replaces the operation of xtimeO,which is the main operation in the MixColumnsO function,with the newly defined function of MulO and calls its subroutines,eventually enhances the efficiency of AES in the implementation procedure. The experimental results demonstrate that the implementation efficiency of the improved AES algorithm is better than the original

关键词： AES MixColumnsO2 xtimeO3 MulO4

作者: Wang Ying Ren Pingan

作者单位: School of Computer Science,Shaanxi Normal University,Xian 710062,China

会议类型: 国际会议

会议名称: 2010 International Forum on Computer Science-Technology and Applications(2010 国际计算机科学技术应用论坛 IFCSTA 2010)

会议地点: 南宁

会议语种:英文

页码: 305-307

在线出版日期: 2010-12-10（万方平台首次上网日期，不代表论文的发表时间）