The Modified Signature Scheme Based on Factoring and Discrete Logarithms

被引：0
|
作者：
Ismail, E. S. [1 ]
Tahat, N. M. F. [2 ]
机构：
[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
[2] Hashemite Univ, Fac Sci, Dept Math, Zarqa, Jordan
来源：
INFORMATION SECURITY JOURNAL | 2011年 / 20卷 / 4-5期
关键词：
cryptology; cryptography; digital signature; factoring; discrete logarithms; hard problems;
D O I：
10.1080/19393555.2011.607221
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Laih and Kuo developed two highly secure and efficient signature schemes based on factoring and discrete logarithms. Unfortunately, their schemes require many keys for signing document and verifying signature. Li, Tzeng, and Hwang improved one of their schemes and managed to reduce the number of keys, but unfortunately the improved scheme was shown to be insecure by Qian, Chao, and Bao. In this paper, a new modified scheme of Li-Tzeng-Hwang is presented with two main results: The modified scheme requires fewer keys than the scheme by Laih and Kuo, and it is able to withstand many attacks including the one mentioned by Qian, Chao and Bao.
引用
收藏
页码：245 / 249
页数：5
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