Research on Chaotic Block Cipher Algorithm Applied to Wireless Sensor Networks

We designed a cryptographic algorithm to fit the wireless micro sensor network in this paper. The coupled extended integer tent maps, which to generate the key sequence, one byte plain text block, one byte Feistel structure, and bit confusion are used to construct the algorithm. Since It has not only the time pad property but also the high speed confusion and diffuse, the security capability of the algorithm is excellent. Moreover, there will not be multiplication, division or floating-point calculation in the computation process of the algorithm, it´s suitable for the application in the WSN nodes, of which the computing power is limited.