How to enable TLS 1.2 for Siebel Outbound HTTP/SSL interfaces that use the "EAI HTTP Transport" on Windows?
Last updated on APRIL 30, 2018
Applies to:Siebel CRM - Version 8.0  and later
The note outlines settings one has to perform / verify for the Windows Server OS of Siebel CRM Application Server so one can use TLS 1.2 handshake protocol in HTTP/SSL of Siebel Outbound Interfaces (such as SOAP Web Services).
The Siebel Outbound HTTP interfaces usually use the "EAI HTTP Transport" standard transport Business Service (BS) to perform HTTP and HTTP/SSL exchange with external system.
This transport BS uses the HTTP/SSL stack provided by system libraries of the Microsoft Windows (MS WinInet API, MS Crypto etc).
These libraries needs some OS Windows settings to explicitly enable the TLS 1.2 modern securest handshake protocol for outbound HTTP/SSL connections to external web sites.
This note outlines the changes.
NOTE: these discussed features are not related to the Oracle Siebel CRM product but are specific to the 3rd party product: the Microsoft Windows Server OS.
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