An Improved (t,n) Threshold Proxy Signature Scheme Based on RSA Cryptosystem

被引：0

作者：

Wang, Yuping ^{[1
]}

Hu, Lishuan ^{[1
]}

Yu, Xin ^{[1
]}

机构：

[1] Beijing Union Univ, Coll Automat, Beijing 100101, Peoples R China

来源：

2009 ISECS INTERNATIONAL COLLOQUIUM ON COMPUTING, COMMUNICATION, CONTROL, AND MANAGEMENT, VOL IV | 2009年

关键词：

Conspiracy attack; Digital signature; RSA Cryptosystem; Threshold proxy signature;

D O I：

10.1109/CCCM.2009.5267540

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A (t,n) threshold proxy signature scheme enables a proxy signer to sign messages on behalf of the original signer. Hwang et al. recently proposed an practical (t, n) threshold proxy signature scheme. In this paper we propose an efficient threshold proxy signature scheme based on RSA signature scheme, which improves security of their scheme. Our scheme divides the document M into m blocks and add some redundant bits to each message block. It is embedded in the proxy signature issuing phase to avoid the conspiracy attack. The proposed signature scheme satisfies all the secure requirements and is efficient.

引用

页码：567 / 570

页数：4

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