北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 1999, Vol. 22 ›› Issue (3): 60-62.

• 研究报告 • 上一篇    下一篇

一种认证加密方案的安全性分析*

李子臣, 杨义先   

  1. 北京邮电大学信息工程系, 北京 100876
  • 收稿日期:1998-10-20 出版日期:1999-07-10
  • 基金资助:
    国家自然科学基金(69772035; 69896240; 69896243)和国家“863计划”资助项目

A Security Analysis of an Authenticated Encryption Scheme

Li Zichen, Yang Yixian   

  1. Department of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876
  • Received:1998-10-20 Online:1999-07-10

摘要: 利用同态函数所具有的同态性, 对Horster, Michels和Petresen依靠单向函数提出的一种低通信消耗的认证加密方案进行安全分析, 并给出一种已知明文的伪造攻击方法, 得出在Horster, Michels和Petresen方案中, 当单向函数是同态函数时, 这种认证加密方案是不安全的.

关键词: 密钥学, 数字签名, 消息恢复, 认证加密

Abstract: By the character of homorphism function, the authorsanalyze the security of the authenticated encryption scheme, depended on the character of one-way function and proposed by Horster, Michels and Petresen, withlow communication costs, and present a known plaint-cryphertext attack method.At the end we get the conclusion that if the one-way function is homomorphism,the scheme is insecure.

Key words: cryptograph, digital signature, message recovery, authenticated encryption

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