Flexible Block Ciphers: Modifying LEX

摘要：

In this paper, we review LEX, a stream cipher that harnesses the strength of the Advanced Encryption Standard (AES) block cipher to produce ciphertext at 2.5 times the speed of the AES. Both AES and LEX have been attacked due to the way that they convert master keys into round keys or state. We consider ways in which to remove the vulnerabilities of LEX without diminishing its throughput. We propose FLEX, a more secure version of LEX that produces keystream at 2.4 times the speed of the underlying block cipher.

关键词： cryptography security stream cipher AES LEX

作者: Matt Henricksen

作者单位: Institute for Infocomm Research, A*STAR,Singapore, Singapore

会议类型: 国际会议

会议名称: 2010 3rd IEEE International Conference on Computer Science and Information Technology(第三届IEEE计算机科学与信息技术国际会议 ICCSIT 2010)

会议地点: 成都

会议语种:英文

页码: 630-634

在线出版日期: 2010-07-07（万方平台首次上网日期，不代表论文的发表时间）