Auth by Essx-1 keystone under SSL ? swift client howto ?

Well , In the early released keystone milestone essx-1 , the SSL has been implemented.

But while I try to make it work with swift 1.4.4 , swift client seems not work , no any request be sent to keystone for authorization.

In my guess , the request is denied at SSL handshaking section.

I have no idea about how to specify SSL cert & key files for swift client tool

There's only three variables that I set for swift client
ST_AUTH
ST_USER
ST_KEY

and this setting working well before.

For now , keystone is SSL ready , but how to setup swift client ?
I just using example ssl files from https://github.com/openstack/keystone/tree/master/examples

While I using curl with the key & cert to hit keystone , It returns correct information to me .

But there's no any variable for cert & key can be defined to swift client ....
Am I right ?