gpgme_set_passphrase_cb not cooperating...

[Mike Inman]

Thanks Werner,

I did that, saw the call to gpg2 (2.0.28, libcrypt 1.6.3), tried changing
the engine to /usr/bin/gpg ( using  gpgme_ctx_set_engine_info( ctx,
GPGME_PROTOCOL_OpenPGP, "/usr/bin/gpg", NULL ) ) and that worked under
Ubuntu.

Now, my target environment is CentOS 7, and they resolve /usr/bin/gpg with
a link to /usr/bin/gpg2 - which does not play nice with
set_passphrase_cb().  Any suggestions on the best way to untangle that knot?

Mike



On Thu, Mar 22, 2018 at 3:20 AM, Werner Koch <wk at gnupg.org> wrote:

> On Wed, 21 Mar 2018 23:53, mangocats at gmail.com said:
>
> > Which versions of gpg/gpgme support passphrase callback setting for
> > symmetric encryption?  My gpgme_check_version returns 1.5.5 and gpg
> > --version returns 1.4.18 in Ubuntu 15.10
>
> I doubt that it will work with 1.4.  Note that gpgme prefers an
> installed GnuPG 2 version and that may be an too old version or
> combination of GnuPG 2 and gpgme.
>
> I would suggest that you run your application with
>
> GPGME_DEBUG=9:gpgme.log: ./your-application
>
> and check the created log file.  It will have the used gpg version right
> at the top and log the entire communication between gpgme and gpg.
>
>
> Salam-Shalom,
>
>    Werner
>
>
> --
> #  Please read:  Daniel Ellsberg - The Doomsday Machine  #
> Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
>
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