期刊
INFORMATION SCIENCES
卷 180, 期 20, 页码 4069-4074出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2010.06.013
关键词
Chaos; Hash function; Key agreement; Chebyshev
资金
- National Natural Science Foundation of China [60572027]
- Program for New Century Excellent Talents in University of China [NCET-05-0794]
- Foundation for Young Scientists of Sichuan Province, China [03ZQ026-033]
- Application Basic Foundation of Sichuan Province, China [2006J13-110]
- Foundation of Southwest University for Nationalities [09NYB002, 08NBS003]
Recently, Xiao et al. proposed an improved key agreement protocol based on chaotic maps, in which only a predetermined long-term key is utilized to ensure its security. This paper demonstrates that none of these schemes can satisfy the contributory nature of key agreement. To fill the gaps, we present a secure key agreement protocol based on chaotic Hash. The proposed scheme utilizes the chaotic Hash function to achieve the contributory nature anti enhance its security. Cryptanalysis demonstrates that our chaotic Hash-based scheme can overcome all the current deficiencies. (C) 2010 Published by Elsevier Inc.
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