Options for the authentication hook and HTTPS listen hosts.  The default values is NULL.
      If the sec_method (security method) defined as @SSL@ the following auth_options must be supplied:
      https_cert - HTTPS server certificate file path, https_key - HTTPS server private key file path.
      In addition to check X509 certificate of clients, the https_cv option with path to the file containing trusted certificate authorities must be supplied and https_cv_depth - integer to set depth of client certificate checking.
      