Our team is using PGP Desktop and Viewer. I am interested in knowing the below:
A) How to support files created with older keys.
B) Assuming PGP Desktop works with a set of active keys - each for a different set of files, how can I add the keys from commandline ?
Background:
The PGP Key in PGP Desktop is currently static. This is because the files have been encrypted with a static key. Now, this key will be changed every few months. So files encrypted after the change will be encrypted with the new key whereas files before that point in time will have been encrypted with the older key.
For backward compatibility, PGP desktop needs to work with files created through older version of the key.
Since updating the keys will be a recurrent activity, at least every few months, we would like to automate this process. The automation would be triggered by the system that controls the keys, which would add the new key in PGP Desktop.
We need a solution for both Windows and Linux.