Working on Three20 Requests with Secure Connection/Signed Certificate

Do I need additional settings for my TTURLRequests if I have an https api and the server has a signed certificate? How does stuff works in iPhone Applications when dealing with Signed Certificate? ...I really need help wh开发者_如何学运维ere to start from here, thanks

In three20 library, there is a delegate called TTURLRequestDelegate. (http://api.three20.info/protocol_t_t_u_r_l_request_delegate-p.php).
Your class / delegate need to implement request:didReceiveAuthenticationChallenge: method to respond back to server.

If your application is communicating to a https server having SSL certificate, you can compare the server certificate received from the server (received in above mentioned method) with server certificate embedded in your application.