Chaos block cipher for wireless sensor network  

作　　者：CHEN Shuai ZHONG XianXin WU ZhengZhong 

机构地区：[1]Department of Physics, Huainan Normal University, Huainan 232001, China [2]Key Lab for Optoelectronic Technology and System, Ministry of Education, Chongqing University, Chongqing 400030, China

出　　处：《Science in China(Series F)》2008年第8期1055-1063,共9页中国科学（F辑英文版）

基　　金：the National Basic Research Program(Grant No.G1999033105);the Fund of Chongqing Science and Technology Committee(Grant No.2005BB2198);the Fund of the Natural Science of Education Department of Anhui Province,China(Grant No.2005KJ092);the Fund of the Natural Science for the Young Teachers of Huainan Normal University in China(Grant No.2004LKQ01)

摘　　要：New block cipher algorithm in single byte for wireless sensor network with excellence of many cipher algorithms is studied. The child keys are generated through the developed discrete Logistic mapping, and the Feistel encrypting function with discrete chaos operation is constructed. The single byte block is encrypted and decrypted through one turn permutation, being divided into two semi-byte, quadri- Feistel structural operation, and one turn permutation again. The amount of keys may be variable with the turns of Feistel structural operation. The random and security of the child key was proven, and the experiment for the block cipher in wireless sensor network was completed. The result indicates that the algorithm is more secure and the chaos block cipher in single byte is feasible for wireless sensor network.New block cipher algorithm in single byte for wireless sensor network with excellence of many cipher algorithms is studied. The child keys are generated through the developed discrete Logistic mapping, and the Feistel encrypting function with discrete chaos operation is constructed. The single byte block is encrypted and decrypted through one turn permutation, being divided into two semi-byte, quadri- Feistel structural operation, and one turn permutation again. The amount of keys may be variable with the turns of Feistel structural operation. The random and security of the child key was proven, and the experiment for the block cipher in wireless sensor network was completed. The result indicates that the algorithm is more secure and the chaos block cipher in single byte is feasible for wireless sensor network.

关 键 词：block cipher wireless sensor network discrete chaos encryption function single byte 

分 类 号：TN918[电子电信—通信与信息系统]