Security analysis of a one-way hash function based on spatiotemporal chaos |
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| Authors: | Wang Shi-Hong and Shan Peng-Yang |
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| Affiliation: | School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; International School, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | The collision and statistical properties of a one-way hash function based on spatiotemporal chaos are investigated. Analysis and simulation results indicate that collisions exist in the original algorithm and, therefore, the original algorithm is insecure and vulnerable. An improved algorithm is proposed to avoid the collisions. |
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| Keywords: | collision spatiotemporal chaos hash function |
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