Take the 2-minute tour ×  I have been given the following code
that should perform an ssl handshake and certificate
authentication:  1   s = socket.socket() 2   print
"connecting..." 3   logging.debug("Connecting") 4   # Connect
with SSL mutual authentication 5   # We only trust our server's
CA, and it only trusts user certificates signed by it 6   c =
ssl.wrap_socket(s, cert_reqs=ssl.CERT_REQUIRED, 7
ssl_version=ssl.PROTOCOL_SSLv3, ca_certs='ca.crt', 8
certfile='user.crt', keyfile='user.key') 9
c.connect((constants.server_addr, constants.port))  I have 2
questions about this:    1. where do we specify the server/port
to which we are connecting? are these arguments to
socket.socket()?   2. I have a .p12 from which I extracted a
cert and a key in pem format(see this question), and I assume
that these correspond to user.crt and user.key (line 8),
respectively. However, while I assume that ca.crt (line 7) is
retrived from the certificate authority, how to I retrieve