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.
Traditional encryption schemes are not suitable for the Wireless sensor networks (WSNS) due to some intrinsic features of nodes in WSNS such as low energy, limited computation ability and storage resources. This paper presented a novel block encryption scheme based on hybrid chaotic maps dynamically and proposed an integer digital random method, and the Feistel network structure, which is a kind of fast, secure, low resource consumption and suitable for WSNS nodes encryption scheme. The experimental tests show the new encryption scheme has follows prefect performance: the large key space, very good diffusion and disrupt performance, strict avalanche effect, excellent statistical balance and fast encryption speed of the new scheme, and the encryption scheme passes the SP800-22 test; meanwhile, the analysis and testing of speed, time and storage space on the simulator platform shows this new encryption scheme is well able to hide the data information the node in WSNS.
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