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由于计算机网络和数据库技术的广泛应用。数据的安全和保密问题变得越来越重要,特别在商业界,信息要求加密传递和保密已成为亟待解决的问题,为此,IBM公司的塔奇曼(W.Tuchman)和迈耶(C.meyer)等人,在魔王(LUCIFER)密码体制的基础上,研制出数据加密标准DES(data encryption stadard)。经美国国家保密局(NBS)审定,于1977年1月由联邦标准局公布作为各部门加密敏感数据的标准密码。该标准介绍的算法基本原理是一个强有力的替代。本文就DES结构的基本原理作初步探讨。
Due to the widespread use of computer networks and database technologies. Data security and confidentiality issues become more and more important, especially in the business world, the information requirements of encrypted transmission and confidentiality has become an urgent problem to be solved, IBM’s Tachman (W. Tuchman) and Meyer (C . Meyer), who, in the devil (LUCIFER) password system, developed a data encryption standard DES (data encryption stadard). Approved by the U.S. National Security Agency (NBS) and published in January 1977 by the Bureau of Standards and Standards as the standard password for encrypting sensitive data in various departments. The basic principle of the algorithm introduced in this standard is a powerful alternative. This article on the basic principles of DES structure for a preliminary discussion.