A novel block encryption scheme based on chaos and an S-box for wireless sensor networks  

作　　者：Tong Xiao-Jun Wang Zhu Zuo Ke 佟晓筠;王翥;左科(School of Computer Science and Technology,Harbin Institute of Technology,Weihai 264209,China;School of Information Technology and Engineering,Harbin Institute of Technology,Weihai 264209,China)

机构地区：[1]School of Computer Science and Technology,Harbin Institute of Technology,Weihai 264209,China [2]School of Information Technology and Engineering,Harbin Institute of Technology,Weihai 264209,China

出　　处：《Chinese Physics B》2012年第2期163-174,共12页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.60973162);the Natural Science Foundation of Shandong Province,China (Grant No.ZR2009GM037);the Key Natural Science Foundation of Shandong Province,China (Grant No.Z2006G01);the Science and Technology Fund of Shandong Province,China (Grant No.2010GGX10132);the Scientific Research Foundation of Harbin Institute of Technology at Weihai,China (Grant No.HIT(WH)ZB200909);the Technology Research and Development Program of Weihai High-Technology Development Zone in Shandong Province,China (Grant No.201025);the Technology Research and Development Program of Weihai,China (Grant No.2008011)

摘　　要：The wireless sensor network （WSN） has been widely used in various fields, but it still remains in the preliminary discovery and research phase with a lack of various related mature technologies. Traditional encryption schemes are not suitable for wireless sensor networks due to intrinsic features of the nodes such as low energy, limited computation capability, and lack of storage resources. In this paper, we present a novel block encryption scheme based on the integer discretization of a chaotic map, the Feistel network structure, and an S-box. The novel scheme is fast, secure, has low resource consumption and is suitable for wireless sensor network node encryption schemes. The experimental tests are carried out with detailed analysis, showing that the novel block algorithm has a large key space, very good diffusion and disruptive performances, a strict avalanche effect, excellent statistical balance, and fast encryption speed. These features enable the encryption scheme to pass the SP800-22 test. Meanwhile, the analysis and the testing of speed, time, and storage space on the simulator platform show that this new encryption scheme is well able to hide data information in wireless sensor networks.The wireless sensor network （WSN） has been widely used in various fields, but it still remains in the preliminary discovery and research phase with a lack of various related mature technologies. Traditional encryption schemes are not suitable for wireless sensor networks due to intrinsic features of the nodes such as low energy, limited computation capability, and lack of storage resources. In this paper, we present a novel block encryption scheme based on the integer discretization of a chaotic map, the Feistel network structure, and an S-box. The novel scheme is fast, secure, has low resource consumption and is suitable for wireless sensor network node encryption schemes. The experimental tests are carried out with detailed analysis, showing that the novel block algorithm has a large key space, very good diffusion and disruptive performances, a strict avalanche effect, excellent statistical balance, and fast encryption speed. These features enable the encryption scheme to pass the SP800-22 test. Meanwhile, the analysis and the testing of speed, time, and storage space on the simulator platform show that this new encryption scheme is well able to hide data information in wireless sensor networks.

关 键 词：wireless sensor networks chaos encryption discretization of chaotic equations S-BOX 

分 类 号：O415.5[理学—理论物理] TP309.7[理学—物理]