Which TLS version does Netty support? TLS 1.0, 1.1 or 1.2?

Question

Which TLS version does Netty support? TLS 1.0, 1.1 or 1.2? I looked at http://netty.io/5.0/xref/io/netty/handler/ssl/SslHandler.html but it doesn't say which version exactly.

Answer 1

Netty uses Java SSL engine internally as follows inside it's handler chain.

pipeline.addLast("ssl", new SslHandler(sslEngine));

So the TLS version it supports depends on the JDK version you use. For an example if you sre using JDK 1.6, it supports TLSv1 where as JDK 1.7 supports, TLSv1,TLSv1.1,TLSv1.2.

Regards, Ravindra.