WCF .NET 4.0 doesn't work without TLS 1.0

Jul 1 2015 3:47 PM

In company that I work, we have a product that uses WCF over net.tcp using SSL in .NET Framework 4.0. In a specific client, for security reasons, exists the requirement to disable the SSL 2, SSL 3 and TLS 1. The problem is that the comunnication doesn’t work without TLS 1.0.The problem is that the comunnication doesn’t work without TLS 1.0.

Someone can tell me Why?

I used the IISCrypto to disable the above protocols. It's attached in this discussion the example code. Steps to reproduce the scenario.Steps to reproduce the scenario.

  1. Disable the protocols as show in the image below

  2. Restart the Computer

  3. Build the solution : dl.dropboxusercontent.com/u/51027563/WCFWithSecurity.zip

  4. Execute the Server.exe

  5. Execute the Client.exe

  6. It’ll show the error below : The caller was not authenticated by the service


 

Answers (2)