The application server's PSEs to use for WS-Security (digital signatures and encryption).
You can set up different WS-Security PSEs to use for different Web services. These are referred to as WS-Security identities. Each WS-Security identity possesses its own PSE. There is a standard identity that uses the standard WS-Security PSE.
WS-Security PSEs use only the Rivest-Shamir-Adleman (RSA) algorithm.
This PSE contains the application server's security information including its key pair and its corresponding certificate list. The certificate list contains the list of Certification Authorities (CAs) that the server trusts when using the Web service(s) that use this PSE.
When you create a WS-Security PSE, the system creates a single PSE that is distributed to all of the application servers.
The standard WS-Security PSE is stored in the file $(DIR_INSTANCE)/sec/SAPWSSE.pse. Each additional WS-Security PSE is stored in the file $(DIR_INSTANCE)/sec/SAPWSSE_<Identity>.pse.