Installing SAP Cryptographic Library

Hi Guys,

I am an ABAP Consultant with zero BASIS experience, but I have been assigned the task of enabling SSL in SAP application server to secure websevices communicating with external networks.

So I found the SAP Note 1527879 to follow its steps.

However I am struggling with the first step in the note: installing the Cryptographic Library.

I have downloaded .SAR file but don't know how to extract it.

Also in tcode STRUST environment->SSL client identities there are 2 entries. Does this mean SSL is already enabled in application server?

If anyone could please guide me with this process or share any information, It would be much appreciated.