[pyOpenSSL] Re: [pyOpenSSL] How to detect if a port has SSL running?

[mjabbur]

My major problem is the timeout. If the server does not have SSL it
will block forever. I've thought to use the alarm function but this
script will also run on Windows which does not have support for alarm.
Anyway I'll try the OpenSSL list.

Thanks,
Marlon

---------- Cabeçalho inicial  -----------

De: pyopenssl-list-admin at lists.sourceforge.net
Para: pyopenssl-list at lists.sourceforge.net
Cópia: 
Data: 15 Jan 2003 11:27:27 +0100
Assunto: Re: [pyOpenSSL] How to detect if a port has SSL running?

> tis 2003-01-14 klockan 14.14 skrev Marlon Jabbur:
> > Hi list,
> > I've been using pyOpenSSL for a while and I have a problem that I
could 
> > not solve and maybe someone can help me. 
> > My problem is how do I detect if a arbitrary port is running or
not SSL?
> > When I establish a connection with a non-ssl server and I try to send
> > some data it hangs forever, I'm  guessing that the problem is that
the 
> > SSL handshake never completes, but how can I catch this error in a
> > script?
> 
> I think it depends on the SSL version, and I think it is better to ask
> this question on the openssl-users mailing list.
> 
> I'm not sure you would *want* to be able to detect it (other than timing
> out) since it invites solutions on the form "Try SSL and if that fails,
> revert to non-encrypted communication" which in turn invites downgrade
> attacks from a malicious party. I think. :)
> 
> 
> /Martin
> 
>