It would be useful if in the Foreman UI parameters for things such as passwords or private keys could be encrypted. This would allow users who cannot manage these objects via Foreman in plain text (InfoSec rules) to manages them efficiently. The data would have to be encrypted on the backend as well (puppet masters) so I am not sure how feasible this is. I'm thinking of Hiera's feature of using encrypted yaml when thinking about implementing this into Foreman.