ABAP calls Salesforce.com via HTTPS

Hello,

I'm trying to develop client application by ABAP.

This ABAP code calls external Salesforce.com web services.

I have created a client proxy from WSDL file that is published on salesforce.com.

The endpoint is "https://login.salesforce.com/services/Soap/c/20.0"

I created RFC destination but I don't know how to set up SSL transportation to this endpoint.

Does anyone know the procedures to configure SSL ABAP client.

Thank you,

Koji Nagai