Options for encrypted configuration values with erlsrv.exe

Hello,
I am using erlsrv.exe on Windows to run RabbitMQ as a service. The broker is
configured to only expose tcp services through TLS. As a result the CA, certificate,
private key and its password are specified in file passed to the ssl_dist_optfile
parameter.

In reading the docs, I see the options are to encrypt it with a passphrase and either
include the passphrase directly or through a file, or via stdin.

Does Erlang provide a facility to execute a script in order to obtain the password
or passphrase when starting? Even with physical security, this will be a challenge
without an additional level of security.

Thanks,
jlc