一个伪装的电码本模式及其安全性分析

doi:10.13190/jbupt.200506.89.wenft

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (6): 89-92.doi: 10.13190/jbupt.200506.89.wenft

一个伪装的电码本模式及其安全性分析

温凤桐1，3 ，吴文玲2，温巧燕1

1北京邮电大学理学院，北京 100876； 2中国科学院信息安全国家重点实验室，北京 100080；〖JZ〗3济南大学理学院，济南 250022

出版日期:2005-12-28 发布日期:2005-12-28

A Masked Electronic Codebook Mode of Operation and Its Security Analysis

WEN Fengtong1,3 ,WU Wenling2,WEN Qiaoyan1

1 Shool of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2 State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China; 3 School of Science, Jinan University, Jinan 250022, China

Online:2005-12-28 Published:2005-12-28

摘要/Abstract

摘要：

为提高分组密码工作模式的性能，提出了1个基于电码本(ECB)模式的新方案. 此方案利用Gray码对消息块进行伪装，使得数据模式得到有效的隐藏. 同时，利用归约的思想对其安全性进行了分析. 结果表明，在所用分组密码是伪随机置换的条件下，此方案在选择明文攻击下是左右不可区分安全的.

关键词: 分组密码, 工作模式, 可证明安全性, 优势函数

Abstract:

A novel scheme based on traditional electronic codebook (ECB) mode was proposed to improve the capability of block cipher mode of operation. Message blocks were masked with the Gray code so that the data mode was hidden efficiently. The security of the scheme was analyzed in the sense of reduction based cryptography. Investigation shows that the scheme is left or right indistinguishable against chosen plaintext attack (LOR CPA) secure if the underlying block cipher is a pseudorandom permutation.

Key words: block cipher, mode of operation, provable security, advantage function

中图分类号:

TN9184

温凤桐，吴文玲，温巧燕. 一个伪装的电码本模式及其安全性分析[J]. 北京邮电大学学报, 2005, 28(6): 89-92.

WEN Fengtong1,3 ,WU Wenling2,WEN Qiaoyan1. A Masked Electronic Codebook Mode of Operation and Its Security Analysis[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2005, 28(6): 89-92.

一个伪装的电码本模式及其安全性分析

A Masked Electronic Codebook Mode of Operation and Its Security Analysis

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