| Confidential Communication Through Chaos Encryption in Wireless Sensor Network |
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| 作者姓名： | CHEN Shuai ZHONG Xian-xin |
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| 作者单位： | [1]Electronic Staff Room of Physics Department, Huainan Normal University, Huainan, Anhui 232001, China [2]Key Laboratory of Optoelectronic Technology ＆ System Under State Ministry of Education, Chongqing University, Chongqing 400030, China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);重庆市科学技术委员会科学基金;安徽省教育厅自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | A new byte block cipher algorithm with discrete chaos and Feistel structure has been studied for confidential communication in wireless sensor network to improve security. After permutation,the byte block was encrypted through a Feistel structure in multiple turns and afterwards replaced again. The child keys are the composite sequence of discrete chaos and linear congruence sequences. Both the plain text and cipher text are of 8 bits. The number of keys is alterable. A nonlinear encryption function in the Feistel structure with chaos was constructed. The cipher algorithm was realized in the Micaz node,and the confidential communication experiment in wireless sensor network was completed success-fully. Additional ROM memory required for the cipher algorithm is 4144 bytes and an additional RAM memory 61 bytes. The cipher algorithm is nonlinear chaos and the Feistel structure holds the best of the RC6,DES and SKIPJACK cipher algorithms.The result shows that the algorithm needs a little memory and is safe at a high level.
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| 关 键 词： | 无线传输网络 混沌加密方法 网络安全 算法 |
| 修稿时间： | 2006-07-172006-11-15 |
Confidential Communication Through Chaos Encryption in Wireless Sensor Network |
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| CHEN Shuai ZHONG Xian-xin.Confidential Communication Through Chaos Encryption in Wireless Sensor Network[J].Journal of China University of Mining and Technology,2007,17(2):258-261. |
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| Authors: | CHEN Shuai ZHONG Xian-xin |
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| Abstract: | A new byte block cipher algorithm with discrete chaos and Feistel structure has been studied for confidential communication in wireless sensor network to improve security. After permutation, the byte block was encrypted through a Feistel structure in multiple turns and afterwards replaced again. The child keys are the composite sequence of discrete chaos and linear congruence sequences. Both the plain text and cipher text are of 8 bits. The number of keys is alterable. A nonlinear encryption function in the Feistel structure with chaos was constructed. The cipher algorithm was realized in the Micaz node,and the confidential communication experiment in wireless sensor network was completed successfully. Additional ROM memory required for the cipher algorithm is 4144 bytes and an additional RAM memory 61 bytes. The cipher algorithm is nonlinear chaos and the Feistel structure holds the best of the RC6, DES and SKIPJACK cipher algorithms.The result shows that the algorithm needs a little memory and is safe at a high level. |
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| Keywords: | algorithm encryption chaos wireless sensor network Feistel structure |
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