Rijndael算法中密钥生成方案的研究  

THE RESEARCH OF THE KEY SCHEDULE ON Rijndael

作　　者：邹又姣[1] 王尚平[1] 冉占军[1] 

机构地区：[1]西安理工大学应用数学系,西安710048

出　　处：《计算机应用与软件》2004年第10期9-10,51,共3页Computer Applications and Software

基　　金：陕西省自然科学研究计划资助项目(2 0 0 3F37)。

摘　　要：经过三轮的评选 ,Rijndael算法被定为高级加密标准 (AES)。Rijndael算法的安全性是现在研究的热点之一。本文对Rijn dael算法的密钥生成方案进行了研究 ,提出了新的密钥生成方案。方案避免了种子密钥直接出现在轮子密钥中 ,同时也考虑了密钥的雪崩效应、兼顾了密钥间的线性关系 ,在一定程度上 ,增强了对密钥攻击的抵抗。新方案可改进AES的安全性。After three choices through public appraisal,Rijndael was selected as the Advanced Encryhtion Standard.Now the security of Rijndael is one of research focuses.In this paper the key schedule on Rijndael is primarily researched and also the new key schedule is put forward.This new key schedule avoids the cipher keys directly emerging in the round keys,also is considered the avalanche effect and the linearity between the keys.It can boost up against the analysis of the keys in a way.The new key schedule can improve the security of Rijndael.

关 键 词：密钥 RIJNDAEL算法 高级加密标准 攻击 AES 方案 生成 雪崩效应 直接 安全性 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术] TN918[自动化与计算机技术—计算机科学与技术]