Copyright protection scheme for product data in networked manufacturing
Jinxiang Dong · Computer Integrated Manufacturing Systems · 2008
To protect copyright and integrity of shared product data in networked manufacturing,a new copyright protection scheme for product data was proposed based on the concept of fractal and digital watermark.This scheme made full use of the fractal characteristics in tree-structured data.The solution provided a comprehensive and perfect protection for both node content and structure of tree by way of embedding fractal watermark,structural watermark and node watermark as well.Experiments were conducted on the robustness of the solution against various forms of attacks.Results highlighted correctness of our solution,especially the immunity against tree-structure transformation attacks and sub-tree attacks.