An improved security technique for the terminal sensitive documents

This paper applies the minifilter drive technology and document ID technology to the security and protection of the terminal sensitive documents. An improved document ID technology is proposed. The encryption key is embedded into the document ID, so that the document ID can not only identify the document, but also play the role of simplify the encryption key managements. The paper realizes the transparent identification and transparent encryption of the sensitive documents, achieves some more fine-grained control strategies for document access control. It can effectively prevent the information of the terminal sensitive document from leaking.