Does anyone know if running SQL 2008 R2 on Windows Server 2008 R2 if you can enable TLS 1.2 for connections between the SQL server and the SQL 2008 R2 ODBC client? I successfully enabled TLS 1.2 in IIS 7.5. But a network trace with the same system tweaks showed that the SQL connection was only being negotiated at TLS 1.0.
Enabling TLS 1.2 for IIS 7.5 can be found here:
http://derek858.blogspot.com/2010/06/enable-tls-12-aes-256-and-sha-256-in.html
The big difference between TLS 1.0 and 1.2 is the use of SHA-256 hashing instead of SHA1. NIST has recommended the phasing out of SHA1 in favor of SHA-256.