计算机技术与发展Issue(8)：126-130,5.DOI:10.3969/j.issn.1673-629X.2014.08.029
一种基于Feistel结构和WTS的分组密码
A Block Cipher Based on Feistel Structure and WTS
摘要
Abstract
AES is the advanced data encryption standard. A block cipher based on Feistel structure and WTS strategies named FWTS is designed by studying the overall structure of the block cipher and AES algorithm. FWTS algorithm adopts Feistel structure and its round function refers to WTS strategies of AES encryption. The block size of FWTS is 256 bits,the key size is 128 bits,192 bits,256 bits. De-pendence test shows that FWTS algorithm fully satisfies the avalanche effect with 4-round. Impossible differential analysis with 6-round presents that FWTS algorithm has a higher time complexity than AES. The security of FWTS algorithm is not lower than AES. The effi-ciency test shows that FWTS algorithm has a higher efficiency compared with AES.关键词
AES/Feistel结构/WTS策略/依赖性测试/不可能差分分析Key words
AES/Feistel structure/WTS strategies/dependence test/impossible differential analysis分类
信息技术与安全科学引用本文复制引用
时阳阳,黄玉划,陈帮春..一种基于Feistel结构和WTS的分组密码[J].计算机技术与发展,2014,(8):126-130,5.基金项目
航空科学基金(20081952014,20085552021) （20081952014,20085552021）
区域光纤通信网与新型光通信系统国家重点实验室开放课题(2008SH06) （2008SH06）
南京航空航天大学基本科研业务费专项科研项目(NS2010097) （NS2010097）
