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With the rapid development and continuous application of network and CAD technology, data safety of product has become an outstanding problem day by day. At present, the protection technology of CAD model mainly includes information hiding, digital watermark and control technology of user role and access permission. Based on previous study conclusion, a new encrypt CAD model has been developed, so...
With the development and progress of science and technology, human are coming into information society, the data safety problem which is brought by rapid development of computer technology has become an outstanding problem. A system structure model of network invasion forensics is designed in this text. The model analyze the invasion detecting, at the mean time, collect all network data of target...
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