where can i get the certificate-file and privatekey-file for WTLS?

i think we can try to use the WTLS layor,but the file certificate-file and privatekey-file
isnt with the program  :(
here is the source in the wapbox.c (function readconfig()).
#ifdef HAVE_WTLS_OPENSSL
    /* Load up the necessary keys */
    if ((s = cfg_get(grp, octstr_imm("certificate-file"))) != NULL)
       {
        if (octstr_compare(s, octstr_imm("none")) == 0)
          {
            debug("bbox", 0, "certificate file not set");
           }
       else {
            /* Load the certificate into the necessary parameter */
            get_cert_from_file(s, &x509_cert);
            gw_assert(x509_cert != NULL);
            debug("bbox", 0, "certificate parameter is %s", s);
           }
         }
    if ((s = cfg_get(grp, octstr_imm("privatekey-file"))) != NULL) {
        Octstr *password;
        password = cfg_get(grp, octstr_imm("privatekey-password"));
        if (octstr_compare(s, octstr_imm("none")) == 0) {
            debug("bbox", 0, "privatekey-file not set");
        } else {
            /* Load the private key into the necessary parameter */
            get_privkey_from_file(s, &private_key,password);
            gw_assert(private_key != NULL);
            debug("bbox", 0, "certificate parameter %s", s);
        }
    }
#endif

i use the  ssl-server-cert-file  and ssl-server-key-file instead.
then use the mobile to test it
here is the state machine:

002-07-18 01:04:47 [10] DEBUG: event->type = 0
2002-07-18 01:04:47 [10] DEBUG: WTLS: wtls_machine 0, state EXCHANGE, event T-Un
itdata.ind.
2002-07-18 01:04:47 [10] INFO: lyl: end pdu list
2002-07-18 01:04:47 [10] INFO: --------begin to enter the state machine---------
-----
2002-07-18 01:04:47 [10] INFO: ----------------begin a new 1 machine-----------
2002-07-18 01:04:47 [10] DEBUG: WTLS 0: New state CREATING
2002-07-18 01:04:47 [10] INFO: -------------the wtls machine finish-------------
---

 
event->type = 0
2002-07-18 01:04:47 [10] DEBUG: WTLS: wtls_machine 0, state CREATING, event T-Un
itdata.ind.
2002-07-18 01:04:47 [10] INFO: lyl: end pdu list
2002-07-18 01:04:47 [10] INFO: --------begin to enter the state machine-------





2002-07-18 01:06:11 [10] DEBUG: WTLS: wtls_machine 0, state CREATING, event T-Un
itdata.ind.
2002-07-18 01:06:11 [10] INFO: lyl: end pdu list
2002-07-18 01:06:11 [10] INFO: --------begin to enter the state machine---------
-----
2002-07-18 01:06:11 [10] ERROR: WTLS: handle_event: unhandled event!
2002-07-18 01:06:11 [10] DEBUG: lyl: event->type = 0
2002-07-18 01:06:11 [10] DEBUG: You need to create wtls_pdulist_destroy!

i want to know whether the private key file and the public key file is right
:) if not, where can i get it