Make a CCK Widget or define encryptable fields, not just body

How about making this available for CCK fields, as a widget. That way, you could pre-define a cck field to use encryption all the time. Anything that would be typed in the field would be auto-encrypted, without double clicking necessary. Or, make the double click available on a pre-defined list of fields that could be defined in the admin area? This would solve a major issue of storing incrypted info on a server without also storing the keyfile on the same server.