[gnutls-help] openpgp and gnutls_privkey_import_openpgp

[Nikos Mavrogiannopoulos]

On Fri, May 31, 2013 at 12:12 PM, Petr Vanek <petr at yarpen.cz> wrote:

>> I think then the issue is that this is an encrypted key. Encrypted
>> openpgp keys are not supported. You need to export it without a
>> password in order to use it with the gnutls functions.
> ah thanks!
> It works when I remove a password from the priv key by gpg.
> Nikos, just a question - how hard would be to add this (password
> protected key parsing) feature to gnutls? Where is the place where to
> start investigation: gnutls or nettle?

You should start from gnutls_openpgp_privkey_import(). Adding support
for password-protected files would require you possibly to modify the
opencdk/ part of the library, and possibly implement CFB mode of
decryption (that one would be best handled in nettle). Overall it
shouldn't be much of work.

regards,
Nikos