Rijndael密钥生成算法存在的问题与改进  

Problem and Improvement of Rijndael Key Generation Algorithm

作　　者：胡亮[1] 刘博超[1] 袁巍[1] 贾旭[1] 林海群[1] 贺瑞莲[1] 

机构地区：[1]吉林大学计算机科学与技术学院,长春130012

出　　处：《吉林大学学报（理学版）》2009年第6期1202-1210,共9页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:6087323560473099);教育部新世纪优秀人才支持计划项目基金(批准号:NCET-06-0300);吉林省科技发展计划重大项目基金(批准号:20080318)

摘　　要：基于Serpent密钥生成算法,提出一种改进的R ijndael密钥生成算法.在改进过程中,采用由连续两轮密钥生成下一轮密钥的方法,使得R ijndael密钥生成算法在密钥生成过程中同样具有不可推导的特点,从而提高了原有算法在密钥生成方面的安全性.For improving the security of Rijndael algorithm in the process of key generation,a character called non-deduction was summarized.With this character,the Rijndael key schedule was improved.We made use of continuous two round keys to generate the next round keys,which made the Rijndael key schedule also possess the character non-deduction.Therefore the security of the original key generation algorithm was enhanced.

关 键 词：不可推导 Rijndael密钥生成算法 Serpent密钥生成算法 安全性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]