A note on Girault's self-certified model

被引:26
|
作者
Saeednia, S [1 ]
机构
[1] Free Univ Brussels, Dept Informat, B-1050 Brussels, Belgium
关键词
self-certified; levels of trust; random safe primes; zero-knowledge; discrete logarithm; cryptography;
D O I
10.1016/S0020-0190(03)00203-5
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we describe an important shortcoming of the first self-certified model proposed by Girault, that may be exploited by the authority to compute users' secret keys. We also show, while it is possible to make the attack ineffective by taking additional precautions, the resulting model loses all merits of the original model and does no longer meet the primary contribution of the self-certified notion. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:323 / 327
页数:5
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