Analysis of Sun et al.'s linkability attack on some proxy blind signature schemes

被引：3

作者：

Wu, LC ^{[1
]}

Yeh, YS

Liu, TS

机构：

[1] Natl Chiao Tung Univ, Dept Comp Sci & Informat Engn, Hsinchu 300, Taiwan

[2] Chunghwa Telecom Co Ltd, Telecommun Labs, Taoyuan 326, Taiwan

来源：

JOURNAL OF SYSTEMS AND SOFTWARE | 2006年 / 79卷 / 02期

关键词：

unlinkability; blind signature; proxy signature; digital signature; cryptography;

D O I：

10.1016/j.jss.2005.05.007

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

The proxy blind signature scheme allows the designated proxy signer using the proxy secret key to generate a blind signature on behalf of the original signer. Tan et al. presented the DLP-based and ECDLP based blind signature schemes. Awasthi and Lal proposed a improved DLP-based scheme later. Recently, Sun et al. presented linkability attack on Tan et al.'s and Awasthi-Lal's proxy blind signature schemes respectively. In this paper, we show that Sun et al.'s attack is failed and these schemes are still satisfy the unlinkability property. (C) 2005 Elsevier Inc. All rights reserved.

引用

页码：176 / 179

页数：4

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