I also have been looking for a solution to that problem. The only way to
achieve this is - as far as i know - only deep c++ programming of the builtin
cryptography-module or some 3rd party software (i know that crypto ex -
formerly Glueck&Kanja, now PGP could do the job).

Best regards!


" wrote:

Is this actually possible? Do I need any other tools/AddIns? Does
nobody use the encryption/signature this way?

Regards,
Hans