In this post I am giving an example on how to connect to Couchbase over SSL/TLS to establish a secure connection to protect data on wire.
Hopefully, you have enabled SSL on Couchbase side. For Information on enabling SSL on Couchbase side you can refer to http://docs.couchbase.com/developer/dotnet-2.0/configuring-ssl.html .
In example, I am setting required cipher suite and enabled protocols.