How can i logon Fiori Launchpad without user&password?

Hi experts,

Please look into this thread first.How can i logon Launchpad without user&password?

After several days research in SCN, i found my question is point to a basis question.

Even i type tcode SOAMANAGER, it will popup a web page, also ask me user&password, not only Fiori Launchpad.

Setting Up SSO for SAP Fiori Landscapes with ABAP Environments    -》X.509 Certificates–》Using X.509 Client Certificates on the AS ABAP

Configuring SAP NetWeaver AS for ABAP to Support SSL  -》Configuring the AS ABAP to Use X.509 Client Certificates

First, i want know above link can solve my problem or not?

Then , how i can get the CA? SAP CA will charge now or the 3rd CA?

Thank you, guys.

BRs,

Archer