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diff --git a/xmlsecurity/README.md b/xmlsecurity/README.md new file mode 100644 index 000000000..b983f5dc5 --- /dev/null +++ b/xmlsecurity/README.md @@ -0,0 +1,32 @@ +# Stuff for Document Signing + +This code provides dialogs, and infrastructure wrapping `libxmlsec` and +`gpgme` that implements document signing. + +For signing a document, a personal key pair is used, which consists of a +private key and a public key, which is added to the document in addition +to the digital signature of the document, when signing it. + +The document signing can be done both for the source ODF/OOXML files and +the exported PDF files. It is also possible to sign existing PDF files. + +To test the signed PDFs, one can use the `pdfverify` in this way: + + ./bin/run pdfverify $PWD/xmlsecurity/qa/unit/pdfsigning/data/2good.pdf + +The file parameter should be an absolute path. + +This is the output of `pdfverify` for `2good.pdf`: + +``` +verifying signatures +found 2 signatures +signature #0: digest match? 1 +signature #0: partial? 0 +signature #1: digest match? 1 +signature #1: partial? 0 +``` + +## References +* [Adobe: Digital Signatures in a PDF](https://www.adobe.com/devnet-docs/etk_deprecated/tools/DigSig/Acrobat\_DigitalSignatures_in_PDF.pdf) +* [Adobe: Acrobat DC Digital Signatures - Supported Standards](https://www.adobe.com/devnet-docs/acrobatetk/tools/DigSigDC/standards.html) |