计算机科学 ›› 2009, Vol. 36 ›› Issue (7): 252-255.doi: 10.11896/j.issn.1002-137X.2009.07.062
• 人工智能 • 上一篇 下一篇
张向华
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ZHANG Xiang-hua
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摘要： 首先介绍了一种以时空混沌为基础的构造Hash函数的典型方案，并分析了它的不足和安全性问题。在此基础上提出了一种改进的Hash函数构造方法。理论和仿真实验分析表明，该算法具有更好的统计特性和更高的效率，有效地弥补了原算法中存在的碰撞漏洞。
关键词: Hash函数，时空混沌系统，藕合映象格子
Abstract: A class scheme of hash function was introduced and the flaws and security holes were pointed out. Then, a modified algorithm for oncway Hash function construction based on the spatiotcmporal chaotic system was proposed.Analysis shows that the proposed algorithm has better statistics performance and efficiency, and remedies the security holes of the original algorithm.
Key words: Hash function, Spatiotemporal chaotic systems, Coupled-map lattices
张向华. 一种改进的基于时空混沌系统的Hash函数构造方法[J]. 计算机科学, 2009, 36(7): 252-255. https://doi.org/10.11896/j.issn.1002-137X.2009.07.062
ZHANG Xiang-hua. Modified Algorithm for Hash Function Based on the Spatiotemporal Chaotic System[J]. Computer Science, 2009, 36(7): 252-255. https://doi.org/10.11896/j.issn.1002-137X.2009.07.062
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