| 改进型Logistic映射及其在DES算法中的应用 |
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| 引用本文： | 贺洁玲,王光义,王大朋.改进型Logistic映射及其在DES算法中的应用[J].杭州电子科技大学学报,2013(6):5-8. |
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| 作者姓名： | 贺洁玲 王光义 王大朋 |
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| 作者单位： | 杭州电子科技大学电子信息学院,浙江杭州310018 |
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| 基金项目： | 基金项目：国家自然科学基金资助项目（61271064）,浙江省自然科学基金重点资助项目（LZ12F01001） |
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| 摘 要： | 该文提出了一个改进的Logistic 映射，并进行了一些混沌动力学分析，研究发现该映射比Logistic映射具有更大的参数范围、迭代范围和更大的Lyapunov 指数。将改进的Logistic映射与传统的DES算法相结合，提出了一种新的算法。该算法将改进的Logistic映射作为伪随机序列发生器，产生的伪随机序列作为DES算法的轮密钥，实现了“一组一密”的加密方式，通过对算法的密钥空间进行分析，发现该算法很好地克服了传统DES算法无法抵抗穷举攻击的缺点。
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| 关 键 词： | 混沌 Logistic映射 数据加密标准 |
Modified Logistic Map and Its Application in DES Algorithm |
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| HE Jie-ling,WANG Guang-yi,WANG Da-peng.Modified Logistic Map and Its Application in DES Algorithm[J].Journal of Hangzhou Dianzi University,2013(6):5-8. |
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| Authors: | HE Jie-ling WANG Guang-yi WANG Da-peng |
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| Affiliation: | ( School of Electronics Information, Hangzhou Diartzi University, Hangzhou Zhejiang 310018, China) |
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| Abstract: | In this paper , an improved Logistic map with wider parameter and iteration ranges is proposed , and the dynamical behaviors are analyzed .By using the traditional DES algorithm , a novel algorithm is presented .The improved Logistic map works as a pseudo-random sequence generator , and the pseudo-random sequence in this way acts as the round key , so by this way a realize “one-group-one-cipher” is realized.This novel algorithm improved the traditional DES algorithm which cannot resist the shortcoming of the brute force attack. |
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| Keywords: | Chaos Logistic map data encryption standard |
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