An SSL filter that encrypts and decrypts the data exchanged in the session.
Adding this filter triggers SSL handshake procedure immediately by sending
a SSL 'hello' message, so you don't need to call
SslFilter.startSsl(IoSession) manually unless you are implementing StartTLS
(see below).
A helper class using the SSLEngine API to decrypt/encrypt data.
Each connection has a SSLEngine that is used through the lifetime of the connection.
We allocate buffers for use as the outbound and inbound network buffers.
These buffers handle all of the intermediary data for the SSL connection.