北京邮电大学学报

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北京邮电大学学报

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换位密码及其前景展望

  

  1. 中国科学院研究生院 信息安全国家重点实验室,北京 100039

Transposition Cryptosystem and the Future Expectation

  1. State Key Laboratory of Information Security, Institute of Software of Chinese Academy of Science, Beijing 100039, China

摘要: 换位作业密码具有悠久的历史,它与代替作业密码和加乱作业密码共同构成了密码体制三剑客,尽管换位密码已逐渐被一些现代密码设计者忘记,但只要刻意去开发,在当今密码设计中它仍然会有活力,它可以被应用于现代分组加密算法的设计之中。

关键词: 换位密码, 现代换位密码算法方案

Abstract: Transposition Cryptosystem has a rather long history. It makes up of the three essential cryptosystems together with substitution and Vingenere. Although transposition cryptosystem is gradually being neglected by some modern cryptographer on modern cipher scheme designing, it may still has some vitality if the designers prefer to adopt it. And transposition permutations can befittingly be used in the design of modern bloke cipher.

Key words: transposition cryptosystem, transposition-based bloke cipher scheme

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