Connections between SAP system components that communicate using RFC can be secured with SNC, which secures the data communication paths between the various SAP system components. SAP systems support external security products that implement cryptographic algorithms. With SNC, you can apply these algorithms to your data for increased protection. SNC supports three levels of security protection: authentication only, integrity protection, and confidentiality protection.
To enable SNC for the RFC adapter and SAP systems, a certificate must be installed on the server. For instructions on how to install the certificates and activate SNC, see Transport Layer Security.