文章基本信息

标题：Enhancing the Strength of Conventional Cryptosystems
本地全文：下载
作者：Ivan B. Damgård ; Lars Ramkilde Knudsen
期刊名称：BRICS Report Series
印刷版ISSN：0909-0878
出版年度：1994
卷号：1
期号：38
出版社：Aarhus University
摘要：We look at various ways of enhancing the strength of conventional cryptosystems such as DES by building a new system which has longer keys and which uses the original system as a building block. We propose a new variant of two-key triple encryption which is not vulnerable to the meet in the middle attack by van Oorschot and Wiener. Under an appropriate assumption on the security of DES, we can prove that our system is at least as hard to break as single DES.