Comments on "A practical (t,n) threshold proxy signature scheme based on the RSA cryptosystem"

被引：14

作者：

Wang, GL ^{[1
]}

Bao, F ^{[1
]}

Zhou, JY ^{[1
]}

Deng, RH ^{[1
]}

机构：

[1] Inst Infocomm Res, Infocomm Secur Dept, Singapore 119613, Singapore

来源：

IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING | 2004年 / 16卷 / 10期

关键词：

proxy signature; digital signature; public key cryptosystem; data security;

D O I：

10.1109/TKDE.2004.52

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In a (t,n) threshold proxy signature scheme, the original signer can delegate his/her signing capability to n proxy signers such that any t or more proxy signers can sign messages on behalf of the former, but t-1 or less of them cannot do the same thing. Such schemes have been suggested for use in a number of applications, particularly, in distributed computing where delegation of rights is quite common. Based on the RSA cryptosystem, Hwang et al. [ 7] recently proposed an efficient (t, n) threshold proxy signature scheme. In this paper, we identify several security weaknesses in their scheme and show that their scheme is insecure.

引用

页码：1309 / 1311

页数：3

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