CryptoSocket createServerCryptoSocket(SocketChannel channel) {
        return cryptoEngine.createServerCryptoSocket(channel);
    }
Uses the underlying CryptoEngine to create a CryptoSocket for
the server side of a connection.

@return CryptoSocket handling appropriate encryption
@param channel low-level socket channel to be wrapped by the CryptoSocket
jrt/src/com/yahoo/jrt/Transport.java