Method for safely managing and controlling OFD files by adopting format data stream file technology

Abstract

The invention discloses a method for safely managing and controlling OFD files by adopting the format data stream file technology, which comprises the following steps: attaching a safety encryption protection layer to an uploaded OFD format file, the safety encryption protection layer comprising file encryption, a traceability label and a time limit information string; a traceability label generation step: obtaining user information and a machine recognition code in the OFD operation application system, and performing organization and packaging; wherein the time limit information string generation step comprises the steps of obtaining a reading mode of the OFD format file, organizing and generating according to a reading limiting condition, organizing the obtained encryption mode of the OFD format file, a traceability label and a reading time limit information string into a safety encryption protection layer according to a fixed format, and attaching the safety encryption protection layer to the OFD format file; and obtaining the OFD file with the safety encryption protection layer. According to the OFD format file reading method and device, in an application system operated by OFD, file leakage and diffusion are prevented, the reading range and the reading time limit of the file are controlled, and meanwhile the reading experience of original reading of the OFD format file isguaranteed.

Description

technical field [0001] The invention relates to the field of computer software, in particular to a method for safely managing and controlling OFD files by adopting format data flow file technology. Background technique [0002] On October 14, 2016, World Standards Day, the National Standardization Management Committee officially approved the release of the national standard GB / T 33190-2016 "Format Document for Electronic File Storage and Exchange" (OFD for short) based on independent technology. OFD, short for Open Fixed-layout Document, is an independent and controllable electronic file layout document format in my country, and the corresponding international standard is PDF. OFD format file, fixed layout, non-running version, what you see is what you get, can be regarded as "digital paper" in the computer age; it is an ideal document format for electronic document publishing, digital information dissemination and archiving. Workflow form system: realizes the transfer of a...

AI Technical Summary

Problems solved by technology

OFD cannot provide a variety of safe and reliable reading certification due to its own file characteristics. It cannot limit time / or limit keys, limit computer equipment reading

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