JBoss EAP 6.1.1

web.xml

<login-config>
  <auth-method>FORM</auth-method>
  <realm-name>admin</realm-name>
  <form-login-config>
  <form-login-page>/login.htm</form-login-page>
  <form-error-page>/login.htm?auth-error=true</form-error-page>
  </form-login-config>
  </login-config>

standalone.xml

<login-module code="Database" flag="sufficient">
                            <module-option name="dsJndiName" value="java:jboss/jsi/JSIXADataSource"/>
                            <module-option name="principalsQuery" value="select encode(password, 'hex') from principal where username=?"/>
                            <module-option name="rolesQuery" value="select r.role, r.role_group from role r inner join principal p on r.role = p.role where p.username=?"/>
                            <module-option name="hashAlgorithm" value="SHA-512"/>
                            <module-option name="hashEncoding" value="hex"/>
                        </login-module>

When storing the password I use :

public static byte[] sha512(final byte[] message) {


        MessageDigest md = null;
        try {
            md = MessageDigest.getInstance("SHA-512");
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException("Unable to create message digest", e);
        }
        return md.digest(message);


    }

Now I want to add Salting to the password.

I can add salting to the password in the java code before saving it to the database, but how to use the login module then ??

Do I have to create my custom login module ?