What the plan for SAP dotnet connector or ODBC driver support Tls 1.3?

[zhanyu2023]

I need to enforce Tls 1.3 for my SAP server(S/4 hana and hana cloud) for security issue. How the connection via SAP SAP .NET Connector (sapnco.dll) or sap hana ODBC driver support TLS 1.3? Or do we have any plan to support this tls 1.3 property?

[Dan_vL]

Details on the connection properties for the ODBC driver for SAP HANA can be found at ODBC Connection Properties.  Specifically see the minVersion property which has a description of "Specifies the minimum TLS version the client is willing/able to connect with. Valid values include: TLSv1, TLSv1.1, TLSv1.2, TLSv1.3."

Regards,
Dan van Leeuwen

[Ulrich_Schmidt]

Hi Zhangyi,

1. When using SAP .NET Connector for communicating via the standard RFC protocol, SNC is used for encryption, not TLS! So the question does not really apply.
   When using SAP .NET Connector for communicating via WebSocket-RFC protocol (e.g. with an S/4 HANA Cloud system), NCo uses the TLS implementation of the Microsoft .NET Runtime. Therefore, if the installed .NET Runtime supports TLS 1.3, NCo will automatically support TLS 1.3.
   
2. For the question about the ODBC driver I have added the tag of the HANA Database team. Let's see whether someone from that area can share some details.