Modified pyopenssl example using evenlet

Signed-off-by: Aayush Kasurde <aayush.kasurde@gmail.com>

doc/ssl.rst

@@ -30,14 +30,24 @@ PyOpenSSL
 
 :mod:`eventlet.green.OpenSSL` has exactly the same interface as pyOpenSSL_ `(docs) <http://pyopenssl.sourceforge.net/pyOpenSSL.html/>`_, and works in all versions of Python.  This module is much more powerful than :func:`socket.ssl`, and may have some advantages over :mod:`ssl`, depending on your needs.
 
-Here's an example of a server::
+For testing purpose first create self-signed certificate using following commands ::
+
+    $ openssl genrsa 1024 > server.key
+    $ openssl req -new -x509 -nodes -sha1 -days 365 -key server.key > server.cert 
+
+Keep these Private key and Self-signed certificate in same directory as `server.py` and `client.py` for simplicity sake.
+
+Here's an example of a server (`server.py`) ::
 
     from eventlet.green import socket
     from eventlet.green.OpenSSL import SSL
 
     # insecure context, only for example purposes
     context = SSL.Context(SSL.SSLv23_METHOD)
-    context.set_verify(SSL.VERIFY_NONE, lambda *x: True))
+    # Pass server's private key created
+    context.use_privatekey_file('server.key')
+    # Pass self-signed certificate created
+    context.use_certificate_file('server.cert')
 
     # create underlying green socket and wrap it in ssl
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
@@ -45,7 +55,7 @@ Here's an example of a server::
 
     # configure as server
     connection.set_accept_state()
-    connection.bind(('127.0.0.1', 80443))
+    connection.bind(('127.0.0.1', 8443))
     connection.listen(50)
 
     # accept one client connection then close up shop
@@ -55,4 +65,28 @@ Here's an example of a server::
     client_conn.close()
     connection.close()
 
+Here's an example of a client (`client.py`) ::
+	
+    import socket
+    # Create socket
+    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    # Connect to server
+    s.connect(('127.0.0.1', 8443))
+    sslSocket = socket.ssl(s)
+    print repr(sslSocket.server())
+    print repr(sslSocket.issuer())
+    sslSocket.write('Hello secure socket\n')
+    # Close client
+    s.close()
+
+Running example::
+
+In first terminal
+
+    $ python server.py
+
+In another terminal 
+
+    $ python client.py
+
 .. _pyOpenSSL: https://launchpad.net/pyopenssl