Cryptanalysis of Zhou et al.'s proxy-protected signature schemes

被引：14
|
作者：
Park, JH
Kang, BG
Han, JW
机构：
[1] Natl Secur Res Inst, Taejon 305350, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Math, Taejon 305701, South Korea
来源：
APPLIED MATHEMATICS AND COMPUTATION | 2005年 / 169卷 / 01期
关键词：
cryptography; proxy signature scheme; signature scheme; RSA assumption; security analysis;
D O I：
10.1016/j.amc.2004.10.051
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
Quite recently, Zhou et al. proposed two proxy-protected signature schemes based oil the RSA assumption and the hardness of integer factorization, respectively. They also provided security proofs for each signature scheme in the random oracle model. In this paper, we show that both schemes are not secure and suggest a method for fixing the security flaw. (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：192 / 197
页数：6
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