An improved nominative proxy signature for mobile communication

被引：5
|
作者：
Zhang, JH [1 ]
Wu, QH [1 ]
机构：
[1] Xidian Univ, State Key Lab ISN, Xian 710071, Peoples R China
来源：
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2005年 / E88D卷 / 07期
关键词：
nominative proxy signature; security analysis; improved scheme;
D O I：
10.1093/ietisy/e88-d.7.1697
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
As a specific signature, the nominative proxy signature scheme is a method in which the designated proxy signer generates a nominative signature and transmits it to a verifier, instead of the original signer. Recently, Seo et al. proposed a nominative proxy signature scheme for mobile communication and claimed that the scheme hash non-repudiation. However, after analyzing the scheme, we show that the scheme is insecure and cannot provide non-repudiation, note that a malicious original signer can forge the proxy signer to sign on any message. Finally, we also present a modification version of the scheme to repair the security flaw.
引用
收藏
页码：1697 / 1699
页数：3
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