Support symmetric curve signature / PSS padding validation
Currently the PDF signature routines of Acrobat fail when using certain certificates. As an SecSigner employee explains, this may be due to symmetric curve crypt algorithms or using PSS padding, cf. https://seccommerce.com/anforderungen-an-den-secsigner-im-rahmen-von-etsi/ (in German)
E.g. current PDF files by amazon.de result in the following error (German Acrobat DC installation, no pending updates):
Fehler bei Unterschriftsprüfung.
Bei der Prüfung ist ein Fehler aufgetreten:
Interner kryptografischer Bibliotheksfehler.
Fehlercode: 0x2726
Karsten Tinnefeld
shared this idea
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Karsten Kudlek
commented
to whom I can sent an example?
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Thorsten Schöning
commented
Is there any progress on this issue? Does current a version of Acrobat Reader Reader DC 2019.008.20081 for Windows support PSS padding validation? It doesn't according my tests with the mentioned PDF of German law.
Are there any plans to supporting PSS for creating qualified signatures as well?
Thanks!
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Karsten Tinnefeld
commented
Here you go with a file containing a German law:
Then click on the PDF link.
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Admincdas
(Admin, Adobe)
commented
Dear user,
Thank you for reporting the issue.
Can you please share any such file symmetric curve PSS padded signature.
We will look into the issue with priority.