Re: Python and SSL
- From: kyosohma@xxxxxxxxx
- Date: 16 Apr 2007 09:18:48 -0700
On Apr 16, 10:24 am, "billiejoex" <gne...@xxxxxxxxx> wrote:
Hi,
I developed an ftp-server library and now I would like to add support
for SSL/TLS as described in RFC 2228:http://tools.ietf.org/html/rfc2228
Currenlty I'm searching for documentation about this subject and I
would like to start to ask some questions:
- I noticed that socket module provides an SSL class (socket.ssl) but
even if documentation reports that it does not do any certificate
verification a lot of stdlib modules (imaplib, poplib, smtplib,
httplib and urllib2) provides SSL extension classes wherein socket.ssl
is used. What does it mean?
- On top of that why such extension classes [examples: 1, 2, 3]
accepts key-files and cert-files as optional argouments if no
certificate verification occurs?
[1] poplib.POP3_SSL( host[, port[, keyfile[, certfile]]])
[2] imaplib.IMAP4_SSL( [host[, port[, keyfile[, certfile]]]])
[3] smtplib.starttls( [keyfile[, certfile]])
- By searching through the web I found some daemons supporting SSL
such as this one:http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/442473
By looking at the code I notice that pyopenssl package is used and
that a certificate file is required. Why do I need to use pyopenssl
and how do I generate the cert file?
Could someone point me in the right direction?
Thanks in advance.
I don't know if this will help you or not, but we use the httplib
module's "HTTPSConnection" method to connect with SSL. We use
urlencode from the urllib module to encode the username and password
we send to a server. Since I didn't write this particular bit of code,
I don't completely understand it. But I hope it will give you some
ideas.
Mike
.
- References:
- Python and SSL
- From: billiejoex
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