Secure Network Communication Client Encryption
SNC (Secure Network Communication) Client Encryption is an optional feature for SAP GUI and the SAP NetWeaver technology platform. This software component enables users to protect communications between SAP GUI and the SAP Application Server ABAP using symmetric encryption algorithms.
It also offers encryption of business data for RFC (Remote Function Call) clients, such as the BEx Query Designer. SNC Client Encryption is based on Microsoft Kerberos technology; it does not offer single sign-on capabilities.
For detailed information, please refer to SAP Note 1643878. The software is available for download on the SAP Service Marketplace (login required): https://service.sap.com/swdc, then select Installations and Upgrades.