Big data tracing method and system based on digital watermarking

Abstract

The embodiment of the invention provides a big data tracing method and system, and the method comprises the steps: enabling a binary image watermark to be converted into an original byte flow watermark, and carrying out the encryption of the original byte flow watermark, and obtaining a digital watermark and a shared key; converting the primary key and the text data in each record in the originalbig data into digital fingerprints corresponding to each record; dividing all records in the original big data into n groups based on the digital fingerprint, n being the number of pixel points of thebinary image watermark, wherein each record and the digital fingerprint corresponding to each record correspond to one pixel in the binary image watermark, namely one bit in the digital watermark; and taking one bit in the digital watermark as an embedded value, and embedding the embedded value into numeric data in each record in the big data. The embodiment of the invention has the following advantages: the problems of poor algorithm robustness, poor deletion attack resistance, poor increase attack resistance and the like in the prior art are solved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of digital watermarking, in particular to a method and system for traceability of big data based on digital watermarking. Background technique [0002] With big data initiating major changes in human life, work and thinking, personal data has become a treasure with great value. When its value is discovered, it can continue to create value in various ways. Through deep mining of personal data, companies can achieve more detailed market segmentation and design and produce more targeted products to achieve precise marketing; the formulation of government policies and regulations will be more wise and scientific. In the era of big data, the collection, processing, transaction and application of personal data will be unprecedentedly active. At the same time, frequent transaction activities will also put personal data privacy in danger of leakage at any time. Therefore, how to solve the prob...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a big data traceability method and system based on digital watermark to solve the problems of poor algorithm robustness, poor resistance to deletion attack, and poor resistance to increase attack in the prior art.

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