Secure key-evolving for public key cryptosystems based on the discrete logarithm problem

被引：1

作者：

Lu, CF ^{[1
]}

Shieh, SP

机构：

[1] Ta Hwa Inst Technol, Dept Comp Sci & Informat Engn, Hsinchu 307, Taiwan

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

来源：

JOURNAL OF INFORMATION SCIENCE AND ENGINEERING | 2004年 / 20卷 / 02期

关键词：

provable security; discrete logarithm; key management; key evolving; key independence;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper addresses the security and efficiency of key-evolving protocols in public key encryption and signature schemes, where the security assumption is the intractability of the discrete logarithm problem. We identify the key-independence property as the security goal of key-evolving, so that each periodic secret key is independent of each other. The first protocol operates in Z(p)* and is efficient for the secret-key holders the second operates in Z(n)*, and is efficient for the public-key holder. For both protocols, we provide proofs and analysis for correctness, security and efficiency.

引用

页码：391 / 400

页数：10