Wireless sensor network data security protection method based on digital watermarking

Abstract

The invention discloses a wireless sensor network data security protection method based on digital watermarking. According to the method, data are perceived in source node positions and are converted into binary numbers, and then, processing blocks are divided; a Hash function is utilized for obtaining a watermarking base number, and watermarking information is calculated; the Hash function is utilized for generating a watermarking embedded position base number, and the watermarking storage position is calculated; the embedded watermarking binary numbers are obtained by a watermarking embedded algorithm according to the binary numbers, the watermarking information and the watermarking storage position; character strings are generated through the embedded watermarking binary numbers by using a security character transformation algorithm and are sent. After a base station node receives the data, the original binary numbers and the embedded watermarking information are obtained through a reversion process, then, the watermarking information is calculated, if the watermarking information is sequentially identical to the embedded watermarking, the condition that the original data is correct and complete can be known, and otherwise, the packet is abandoned. The wireless sensor network data security protection method has the advantages that the proper-length watermarking information can be embedded according to the length of the original data, the unnecessary communication volume can be reduced, and the network security is improved through security character transformation.

Description

technical field [0001] The invention relates to the field of wireless sensor network data security, in particular to a digital watermark-based wireless sensor network data security protection method. Background technique [0002] Wireless sensor network (Wireless Sensor Network, WSN) is composed of a large number of cheap miniature sensor nodes deployed in the monitoring area, its purpose is to sense, collect, process and transmit collaboratively, collect monitoring information of objects in the network coverage area, and report to the control center. The wireless sensor network mainly takes data as the center, collects monitoring data in real time, and uses it to analyze and judge the monitoring area. The accuracy and security of data will directly affect whether correct decisions are made. How to ensure the confidentiality of task execution, the reliability of data generation, the efficiency of data fusion, and the security of data transmission are all aspects of wireles...

AI Technical Summary

Problems solved by technology

[0009] The above method can effectively ensure data security and improve network security, but it is difficult to achieve low consumption and flexibility of digital watermarking in practical applications

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