Hello Amit
The SRM 7.0 core services are ABAP WebDynpro so actually you can use SRM without the need of java portal.
I have configured SRM to use SSL without any problems.All you need to do is setup SSL on the SRM (ABAP) using the following instructions:
http://help.sap.com/saphelp_crm60/helpdata/en/65/6a563cef658a06e10000000a11405a/content.htm
Regards
Adi J.