Files
odfstudio/xmlsecurity
Dan Williams e4e60f2769 vcl: standardize Reset dialog button response code
Qt plugin automatically orders buttons for each platform based on
the button's role, which we derive from the Gtk .ui file's
action-widget response code. But to do that conversion from response
code to Qt button role, we need a standard response.

Without a standard response, the button has no role, and gets ordered
to the right of OK/Cancel buttons on Mac. With the correct role, it
is correctly placed far-left along with the Help button.

Change-Id: I16d3126d4999649e7aa6e72ec5e7b1a25f48c2a3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/210223
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
Reviewed-by: Dan Williams <dcbw@libreoffice.org>
Tested-by: Jenkins
2026-09-08 13:42:17 +02:00
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…
2026-08-29 15:34:38 +02:00
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Document Signing

Introduction

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.

Module Contents

  • doc: OpenDocument workflow legacy information with some illustrations to have an idea of the workflow, for starters check doc/OpenDocumentSignatures-Workflow.odt.
  • inc: Headers to a subset of source files inside the module, parts like source/framework have headers inside the folder.
  • qa: Unit tests for signing and shell scripts for certificates creation for testing.
  • test_docs: Documents & certificates used for testing.
  • source: More on that below.
  • uiconfig: User interface configuration for different dialogs, it is recommended to navigate from relevant source file to the .ui file linked in the class which will be under uiconfig/ui.
  • util: UNO passive registration config for GPG/ NSS.

Source Primary Contents

  • component: Main implementation of DocumentDigitalSignatures where the interaction with security environment and certificates occur.
  • dialogs: Certificate & Signatures management dialogs.
    • certificatechooser: Dialog that allows you to find and choose certificates or signatures for encryption.
    • certificateviewer: More detailed information about each certificate.
    • digitalsignaturesdialog: Main window for signatures of the documents and the start point of signing document.
  • framework: Various elements for verifying signatures and running security engine.
  • gpg: The implementation of encrypting with GPG and security environment initialization.
  • helper: Some helper classes that include signatures manager and the helpers for PDF signing, UriBinding, and XML signatures. It also include helper tools for XSecurityEnvironment.
  • xmlsec: XML, NSS, MSCrypt encryption/ signing tools, more on the low-level side of actual implementation of algorithms.

PDF Testing

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