(In reply to comment #30)
> (In reply to comment #26)
> > What's missing in gnutls is a way to parse all the relevant components of 
> > the
> > PKCS#7 object as present in a PDF signature.
> > 
> > It seems that in gnutls they assume those objects can only contain 
> > certificates
> > and CRLs as you can confirm if you go through the functions that take
> > gnutls_pkcs7_t as argument.
> > 
> > With openssl you can get the certificates, signature, and the digest of the
> > signed content (these are the essential parts for detached signatures as 
> > used
> > in PDF) as well as any optional timestamps or CRLs.
> 
> Would it be a lot of work to add support for that to gnutls?

Replying to myself:

<KaL> I wonder if it could be useful for glib-networking to implement the 
missing things in gnutls, or if we don't need that at all
<danw> reading...
<danw> chpe, KaL_out: both gnutls and glib-networking intentionally only do 
TLS, not crypto in general, so I don't think it makes sense to add the extra 
PKCS#7 functionality to either of them
<danw> NSS would be better than OpenSSL, and once all the p11-kit / 
NSS-shared-DB stuff gets figured out fully, then NSS-based apps will be able to 
access your gnome-keyring certificates via PKCS#11

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https://bugs.launchpad.net/bugs/740506

Title:
  verify digital signatures

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