摘要
在分析原有的AES算法密钥生成改进方法所存在的不足的基础上,根据单向性思想提出了几种新的AES密钥扩展算法,从加密强度和运行速度两方面对原有方法进行了改善.通过分析以及实验数据表明,该方法既保证了密钥扩展算法的安全性,又提高了其运行的效率.
In this paper,based on the analysis of the shortcomings of the original key expansion method,some new methods for the key expansion algorithm of AES encryption algorithm are proposed according to the one-way property,which improved the original method in two aspects-encryption strength and running speed.Analysis and experimental data illustrated that the proposed methods not only guaranteed the security of the original algorithm but also improved its efficiency.
出处
《微电子学与计算机》
CSCD
北大核心
2012年第1期102-104,108,共4页
Microelectronics & Computer
基金
中央高校基本科研业务费专项资金项目(HIT.NSRIF.2009134)
关键词
密钥扩展
单向性
AES算法
随机函数
key expansion
one-way property
AES algorithm
random function
