https://bugs.freedesktop.org/show_bug.cgi?id=66701
Priority: medium
Bug ID: 66701
Assignee: [email protected]
Summary: PDF: Malfunctioning PDF's digital signature function.
Severity: normal
Classification: Unclassified
OS: Windows (All)
Reporter: [email protected]
Hardware: Other
Whiteboard: BSA
Status: UNCONFIRMED
Version: 4.0.4.2 release
Component: Writer
Product: LibreOffice
Created attachment 82188
--> https://bugs.freedesktop.org/attachment.cgi?id=82188&action=edit
Created by LibreOffice
Problem description:
Background: Once 'experimental features' enabled under Tools / Options /
LibreOffice / Advanced menu, become possible to export PDF with Digitally
Signed. (Under Windows platform) LibO can use those Certificates which are
installed to Windows / Internet explorer.
Issue: after export a document to PDF with using one of the installed
certificate via File / Export to PDF /Digital signature tab, the opened PDF
file in Acrobat reader contain a corrupted signature. (Same signatures can be
used without any issue under PDFcreator software)
Tested on:
- OS: Windows XP, 7, 8.1 RC
- LibreOffice 4.0.4.2 and 4.1 RC1
- Adobe Reader 10.1.7
- Tested Certificates: CAcer class1 and VeriSign class2
- PDF Creator 1.2.2
Steps to reproduce:
1. Install Digital Certificate under Windows /IE by double click onto your .p12
file and follow the Certificate Import Wizard guidance.
2. Enable 'experimental features' under Tools / Options / LibreOffice /
Advanced menu.
3. Export one of your document to PDF with Digital signature via File / Export
to PDF /Digital signature tab. Choose one of your installed certificate and
provide a password for that.
4. Open the created PDF file in Acrobat Reader.
Current behavior:
Malfunctioned signature reported by Adobe Reader:
Signature validity unknown.
Error during signature verification.
Error encountered while BER decoding.
Expected behavior:
Digital signature properly recognized from created PDF document. (Like it
happen in case I use PDF creator as printer driver.)
Operating System: Windows XP
Version: 4.0.4.2 release
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