Introduction ofd is a national document standard, the format of the underlying document is pdf. ofd document is a container format file, ofd is actually compressed. The ofd file suffix to .zip, you can see the contents of the file containing unpacked.
ofd file analysis tool Download : point I downloaded . Get the latest version ofd and other related tools, can join the QQ group: 920 519 255;
After ofd extract the files, you can see the following:
For xml files can be viewed using the text tool. But for stamp files (Seal.esl), signature file (SignedValue.dat) will not be able to view the content of. I developed a ofd content viewer, you can explore ofd content files. In this tool helps, combined ofd standard documents, electronic signature specifications and other documents, can quickly deepen understanding of the specification file.
Function Description
1 document structure tree display
2 XML document viewing
3 Seal File Viewer
Seal file follows GM / T 0031 specification. Seal data files contain very much; If you look at the standard, it is difficult to ascertain clue. The software in the form of a tree view, consistent with the standard definition format, content can be very intuitive understanding stamp file contains.
For data nodes, display data content, asn1 type, hexadecimal data, etc., can also show the stamp image files.
4 View certificate file
CA certificate stamp will be included in the system chapter and the signature of the person. X.509 certificate is in line with specifications. Software according to the present specification, the display data for each node in a tree form.
Postscript We must first of its profits. I have been engaged in research ofd document, read a lot of standards and norms and relevant information. ofd document covers aspects xml, electronic signature, state secret algorithms, digital certificates. If only to read the document, it is difficult to form an intuitive concept, is not conducive to quickly grasp. Based on this, I think is necessary to write a tool to help understand ofd document content. Hope this tool for your help! He also wrote ofd document display, ofd document editing and other tools (available for download, free of charge); For this information, please refer to my other articles.