Hi,
I'm using a digital certificate, which is meant to sign and encrypt emails (extended key usage 1.3.6.1.5.5.7.3.4).
Signing pdf documents, using this certificate in the viewer seems to work fine.
I'd like to know, if the pdf specification has any requirements on the certificate, so that this can lead to problems, when the signature should be verified in another application, since this certificate isn't meant to be used with pdf documents.
Kind regards, Michael
Question about certificates
Moderators: TrackerSupp-Daniel, Tracker Support, Paul - Tracker Supp, Vasyl-Tracker Dev Team, Chris - Tracker Supp, Sean - Tracker, Ivan - Tracker Software, Tracker Supp-Stefan
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Ivan - Tracker Software
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Re: Question about certificates
Within the PDF Specification there is no clarification about key usage which should be specified into certificates.
What we have found, is that certification should have bit CERT_DIGITAL_SIGNATURE_KEY_USAGE (value 0x80) within the KEY_USAGE extension to be set.
What we have found, is that certification should have bit CERT_DIGITAL_SIGNATURE_KEY_USAGE (value 0x80) within the KEY_USAGE extension to be set.
Tracker Software (Project Director)
When attaching files to any message - please ensure they are archived and posted as a .ZIP, .RAR or .7z format - or they will not be posted - thanks.
When attaching files to any message - please ensure they are archived and posted as a .ZIP, .RAR or .7z format - or they will not be posted - thanks.
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BigMike
- User
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Re: Question about certificates
Hi Ivan,
thank you for the quick response.
thank you for the quick response.
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Chris - Tracker Supp
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Re: Question about certificates
Glad to assist, 
If posting files to this forum - you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded - thank you.
Chris Attrell
Tracker Sales & Support North America
http://www.tracker-software.com
Chris Attrell
Tracker Sales & Support North America
http://www.tracker-software.com