Can only get 2048 GPG key length

Just reinstalled Passbolt-CE-Server on my Ubuntu 20.04 server. When I start the web-based configuration, System Check and Database went all right, but for some reason Key Type and Key Length are greyed out. How do I get these options to work?


These options are not enabled because this the recommended key size for the server key. It is useful in case there is risk that your domain get seized, so not a very scenario for most people. You can generate a key manually and import it if you want to use a bigger key (it is not needed).