摘要
Rijndael算法的执行效率是应用中关心的问题。本文在分析了Rijndael算法原有算法加密、解密原理与过程的基础上,提出了对轮变换的一种优化,主要是改变状态State的使用方式和MixColumn变换。实验表明,这一改进可有效的提高算法的执行速度。
The executing efficiency of Rijndael algorithmic is the concerned issue of its application. Mter analyzing the theory and process of the primary Rijndael arithmetic＇s encrypt and decrypt, this paper bring forwards a optimizing of round transformation which mostly changes the using mode of State and MixColumn transformation. The experiment shows that this amelioration can increase the arithmetic executing effectively.
出处
《微计算机应用》
2007年第10期1112-1116,共5页
Microcomputer Applications
基金
江苏省高技术产业发展项目(苏发改投资发[2004]674号)资助
