WebApp Sec: Q: Howto - SSL Tunnel for End-to-End encryption

["Ip, Ting Pong" <pong () cs ust hk>]

Hi all,

I am now researching on the implementation of end-to-end encryption for the
following typical web application architecture.
[Web Client] <-> [Web Server (Apache)] <-> [Application Server (WebLogic)]
<-> [Database Server (Oracle)]

I would like to make an end-to-end encryption from the web client to
application server so that no intermediate nodes could read the transmitting
traffic.

However, I found that the Apache SSL-Proxy module would initiate the SSL
connection from the web server to the Application Server.  Besides, the SSL
connection from web client will terminate on the web server.  Therefore, in
either case, the web server can read the transmitting traffic.  I am
thinking that to "rewrite" or "redirect" the web connection from the web
server to the application server but this would expose the application
server to the public.

Other than implementing the end-to-end encryption on the application level,
are there any network architecture that can achieve end-to-end encryption
without bypassing the web server?

Thank you very much.

Pong