On Fri, 2007-04-20 at 16:18 +0200, Werner Koch wrote: > On Fri, 20 Apr 2007 15:34, [EMAIL PROTECTED] said: > > > So even if I prevent pinentry to show up it will eventually be > > impossible for me to provide my own callback function? > > I don't understand this. It is in general useless to tell gpg-agent not > to use pinentry for a desktop machine. For a server you want to use > gpg-preset-passpharse or - better - use no passphrase at all.
OK, a little background information is in order here I think :-) I've created a little utility daemon(*) implementing a small and very simple keyring. The idea is that the keyring is given a master passphrase to unlock it's content and to encrypt new content. The content of the keyring is generally passwords. I'm using gpgme for the encryption and decryption of those passwords. I've therefore implemented a daemon that holds the master passphrase and hands it over to the gpgme framework by the use of the passphrase callback function gpgme_set_passphrase_cb(). Having pinentry pop up whenever my callback function should be invoked will therefore prevent the correct passphrase from being handed over to gpgme. I'm using my own little gtk+ dialog to query the master passphrase and content passwords from the user. Maybe I could do this differently but I really want the passphrase dialog to look exactly like the one being used by Evolution so using pinentry-gtk-2 is sub-optimal. Any ideas on how I can: 1) make gpgme use my own callback passphrase function or, 2) make gpgme always use pinentry but using a custom dialog title and question text ?? > > Will this also hold true if I use libgcrypt instead? > > Libgcrypt is a low-level library without any relation to OpenPGP or > S/MIME. It is much like libc. Looks like I need to use it if I can't prevent gpgme from launching pinentry. The drawback is a lack of sample code using libgcrypt. Any samples out there doing encryption from a small memory buffer to a file and decrypting the other way? Thanks a lot in advance, jules (*) Full source is here: http://www.omesc.com/content/downloads/dist/testing/brutus-snapshot.tar.bz2 Look in <brutus/idl/products/evolution/2.4/brutus-keyring/> for the keyring source. A small test program is in <../keyring-test/>. _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
