The reliability of data protection algorithm based on check code in wireless sensor networks

In order to consider kinds of attacks faced by data transmission in wireless sensor networks, a new reliability of data protection algorithm(RDPA) was presented. With perceived data from source node, the corresponding important code is calculated by comparing with data signature. Source nodes get check number through check code algorithm, work out watermarking] using hash function, and embeds them into source data. After receiving the data, base station extracts kinds of information by the data separation algorithm. The extracted watermarking compares the recalculated., if they are equal, the source data are integral and reliable. Otherwise, the data credibility is captured by the credibility algorithm, if it better than the threshold value, we can restore data or abandon it. The experiments results show that RDPA has high sensitivity to kinds of attacks. RDPA using check code and watermarking, can accurately calculate the degree of influence, improves energy efficiency.

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