[GSOC] PDF Signing Support - Final

Stephan Bergmann sbergman at redhat.com
Tue Aug 21 03:03:26 PDT 2012

On 08/20/2012 11:59 PM, Gökçen Eraslan wrote:
> At the end of the day, however, Adobe acroread shows the PDF signatures
> as invalid for some reason. But, it shows the certificate details
> correctly (which was not the case when I have used the old NSS PKCS7
> API). So it seems DER/HEX encodings and the inclusion of the certificate
> chain are correct but there is a bug, apparently. Maybe the calculation
> of SHA1 or passing the private key password to NSS is wrong. I will try
> to figure it out soon.

Yeah, acroread complains that the signature is invalid because "There 
have been changes made to this document that invalidate the signature" 
(plus more, but that's likely related to the throwaway self-signed cert 
I tested with).

But great results anyway so far.


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