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Groups > comp.lang.python > #5462 > unrolled thread

Re: obviscating python code for distribution

Started byDaniel Kluev <dan.kluev@gmail.com>
First post2011-05-16 13:21 +1100
Last post2011-05-18 14:47 -0700
Articles 2 on this page of 42 — 11 participants

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  Re: obviscating python code for distribution Daniel Kluev <dan.kluev@gmail.com> - 2011-05-16 13:21 +1100
    Re: obviscating python code for distribution "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2011-05-16 23:42 +0100
      Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-18 08:36 +0100
        Re: obviscating python code for distribution Dotan Cohen <dotancohen@gmail.com> - 2011-05-18 17:42 +0300
        Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-18 09:54 -0700
          Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-18 18:33 +0100
            Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-18 12:07 -0700
              Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-18 20:56 +0100
                Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-18 14:34 -0700
                  Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-19 06:21 +0100
                    Re: obviscating python code for distribution Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-19 08:47 +0000
                      Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-19 10:16 +0100
                    Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-19 10:23 -0700
                      Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-19 19:23 +0100
                        Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-19 17:56 -0700
                          Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-20 05:48 +0100
                            Re: obviscating python code for distribution Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-20 07:04 +0000
                              Re: obviscating python code for distribution Hans Georg Schaathun <hg@schaathun.net> - 2011-05-20 09:54 +0100
                              Re: obviscating python code for distribution harrismh777 <harrismh777@charter.net> - 2011-05-20 15:24 -0500
                                Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-20 15:45 -0700
                                  Re: obviscating python code for distribution Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-21 00:54 +0000
                                    Re: obviscating python code for distribution harrismh777 <harrismh777@charter.net> - 2011-05-20 23:26 -0500
                          Re: obviscating python code for distribution Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-20 07:10 +0000
                            Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-20 09:26 -0700
                            Re: obviscating python code for distribution Nobody <nobody@nowhere.com> - 2011-05-20 18:48 +0100
                        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-20 11:33 +1000
                        Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-19 19:30 -0700
                        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-20 12:35 +1000
        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-19 03:24 +1000
          Re: obviscating python code for distribution John Bokma <john@castleamber.com> - 2011-05-18 12:31 -0500
            Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-19 03:52 +1000
        Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-18 10:40 -0700
        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-19 04:07 +1000
        Re: obviscating python code for distribution "Littlefield, Tyler" <tyler@tysdomain.com> - 2011-05-18 12:26 -0600
          Re: obviscating python code for distribution harrismh777 <harrismh777@charter.net> - 2011-05-18 21:54 -0500
            Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-19 10:50 -0700
              Re: obviscating python code for distribution harrismh777 <harrismh777@charter.net> - 2011-05-20 01:17 -0500
        Re: obviscating python code for distribution Dotan Cohen <dotancohen@gmail.com> - 2011-05-18 21:30 +0300
        Re: obviscating python code for distribution Dotan Cohen <dotancohen@gmail.com> - 2011-05-18 21:31 +0300
        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-19 04:37 +1000
        Re: obviscating python code for distribution Chris Angelico <rosuav@gmail.com> - 2011-05-19 04:49 +1000
        Re: obviscating python code for distribution geremy condra <debatem1@gmail.com> - 2011-05-18 14:47 -0700

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#5726

FromChris Angelico <rosuav@gmail.com>
Date2011-05-19 04:49 +1000
Message-ID<mailman.1768.1305744573.9059.python-list@python.org>
In reply to#5668
On Thu, May 19, 2011 at 4:26 AM, Littlefield, Tyler <tyler@tysdomain.com> wrote:
>>might be secure as long as attackers cannot, say:
> You forgot UFOs.
> Anyway, again, thanks to everyone for the advice, this is good reading.
> Incidentally, I don't know to much about security. I know about rate
> limiting and dos attacks, as well as some others, but I think there's a lot
> more that I don't know--can someone kind of aim me in the right direction
> for some of this? I want to be able to take techniques, break my server and
> then fix it so that can't be done before I head to public with this.

Your last sentence IS the right direction. The two easiest ways to
find out if your system is secure are (1) try to break it, and (2)
pore over the code and see what can be broken.

When you start testing things, try doing things in the wrong order.
Your server should either cope with it fine, or throw back an error to
that client, but should never allow any action that that client hasn't
already proven he's allowed to do.

There's plenty of people here who know what they're talking about when
it comes to security (just skim over this thread for a few good
names!), so if you have specific questions regarding your Python code,
do ask. Alternatively, if it's not particularly Python-related, I
would be happy for you to email me privately; I'm a gamer, and run an
online game, so I'd be quite willing to have a bit of a poke at your
code.

Chris Angelico

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#5745

Fromgeremy condra <debatem1@gmail.com>
Date2011-05-18 14:47 -0700
Message-ID<mailman.1774.1305755275.9059.python-list@python.org>
In reply to#5668
On Wed, May 18, 2011 at 11:26 AM, Littlefield, Tyler
<tyler@tysdomain.com> wrote:
>>might be secure as long as attackers cannot, say:
> You forgot UFOs.
> Anyway, again, thanks to everyone for the advice, this is good reading.
> Incidentally, I don't know to much about security. I know about rate
> limiting and dos attacks, as well as some others, but I think there's a lot
> more that I don't know--can someone kind of aim me in the right direction
> for some of this? I want to be able to take techniques, break my server and
> then fix it so that can't be done before I head to public with this.

One good thing to do is to just read some of the black hat papers.
They're pretty accessible and even if you don't know everything
they're saying you should be able to get a general feel for things
that way. You might also try working through things like Damn
Vulnerable Web App, if you have the time.

Geremy Condra

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