Password authentication for the domain controller with Elytron

Issue

• When I configure a host controller to connect to a domain controller, I need to provide a "secret":

    <management>
        <security-realms>
            <security-realm name="ManagementRealm">
                <server-identities>
                    <secret value="cclks7598wbvw75=="/>
                </server-identities>
                <authentication>
                    <local default-user="$local" skip-group-loading="true"/>
                    <properties path="mgmt-users.properties" relative-to="jboss.domain.config.dir"/>
                </authentication>

• Can I define the secret in an Elytron's security realm instead?
• How can I configure password authentication to domain controller with Elytron?