| Summary: | 碩士 === 中國文化大學 === 機械工程學系數位機電碩士班 === 102 === The Personal Data Protection Act has been issued by Taiwan government on April 27, 2010. It was announced to implement from 2012. Since a lot of institutions, associations and enterprises need to serve their customers, documents and electronic information of personal data are collected. Therefore, the protection of personal data has become one of the significant issues. Due to the reason that a lot of government agencies and organizations must provide service for companies and enterprises, they have collected a lot of personal information which are stored in electronic format. Those information resources really need to be protected. Therefore the master of a capital handle related storage and security maintenance and auditing is important, using watermarks or digital watermark technology can effectively documents electronic information on the note, in order to strong protection of funding document. In this dissertation, not only the data hiding scheme has been adopted for information protection, but also the Petri net has been combined for information tracking and auditing to achieve individual information securing.
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