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I develop a C# program in Visual Studio 2013 which communicates with a SOAP webservice. How can I tell which version of TLS my program uses?
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1. Click on: Start -> Control Panel -> Internet Options 2. Click on the Advanced tab 3. Scroll to the bottom and check the TLS version described in steps 3 and 4: 4.
Browse to Tools → Internet options → Advanced. 2. Under Security section, you will see a list of SSL and TLS protocols supported. Enable Use TLS 1.2 if present.
To check for TLS 1.0 you could run Wireshark, on the server, and filter for that kind of traffic ( ssl. handshake. version==0x0301 ). If there is not much then disable TLS 1.0 with IISCrypto, as Alpharius suggested, and test all applications function normally.
TLS 1.2 is enabled by default at the operating system level. Once you ensure that the . NET registry values are set to enable TLS 1.2 and verify the environment is properly utilizing TLS 1.2 on the network, you may want to edit the SChannel\Protocols registry key to disable the older, less secure protocols.
I got the answer by directing my program to make requests to https://www.howsmyssl.com/a/check.
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