Flexible Block Ciphers: Modifying LEX

被引：0
|
作者：
Henricksen, Matt [1 ]
机构：
[1] ASTAR, Inst Infocomm Res, Singapore, Singapore
来源：
PROCEEDINGS 2010 3RD IEEE INTERNATIONAL CONFERENCE ON COMPUTER SCIENCE AND INFORMATION TECHNOLOGY, (ICCSIT 2010), VOL 1 | 2010年
关键词：
cryptography; security; stream cipher; AES; LEX;
D O I：
10.1109/ICCSIT.2010.5564740
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
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.
引用
收藏
页码：630 / 634
页数：5
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