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Groups > comp.lang.python > #91156

Re: Ah Python, you have spoiled me for all other languages

Date 2015-05-23 20:57 -0600
From Michael Torrie <torriem@gmail.com>
Subject Re: Ah Python, you have spoiled me for all other languages
References (5 earlier) <CALwzidkxFMpWc2miioN_L2mCPE6WFuHC_=HQX3vAmLL_KqqDRw@mail.gmail.com> <mailman.257.1432355416.17265.python-list@python.org> <slrnmm0o3c.864.jon+usenet@frosty.unequivocal.co.uk> <20150523063424.34308765@bigbox.christie.dr> <CAPTjJmp4P_ojbUpwgO_xtY9Do6X6p6oV25TNgKzrRnZ3sZ0xpw@mail.gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.2.1432436239.5151.python-list@python.org> (permalink)

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On 05/23/2015 05:40 AM, Chris Angelico wrote:
> On Sat, May 23, 2015 at 9:34 PM, Tim Chase
> <python.list@tim.thechases.com> wrote:
>> A self-signed certificate may be of minimal worth the *first* time you
>> visit a site, but if you return to the site, that initial
>> certificate's signature can be used to confirm that you're talking to
>> the same site you talked to previously.  This is particularly
>> valuable on a laptop where you make initial contact over a (I
>> hesitate to say "more secure") less hostile connection through your
>> home ISP.  Then, when you're out at the library, coffee-shop, or some
>> hacker convention on their wifi, it's possible to determine whether
>> you're securely connecting to the *same* site, or whether an attempt
>> is being made to MitM because the cert changed.
> 
> You can get the exact same benefit (knowing when the cert changes)
> with an externally-signed cert too. How many people actually bother to
> check?

Except that you won't be notified automatically.  A MitM attack nowadays
most often uses a valid certificate signed by a recognized (though
untrustworthy) CA.  Thus with a self-signed cert that you've previously
accepted, you'll immediate know of the MitM attack.  The odds of this
happening inside China, for example, is very high.  Wasn't that long ago
bogus google certificates (still valid) were found in the wild.
Eventually Firefox and Chrome revoked the CA cert, but only after it was
found out.

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Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-23 00:58 +1000
  Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 01:29 +1000
    Re: Ah Python, you have spoiled me for all other languages wxjmfauth@gmail.com - 2015-05-22 10:57 -0700
    Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-22 16:40 -0500
    Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-22 16:40 -0500
      Re: Ah Python, you have spoiled me for all other languages Terry Reedy <tjreedy@udel.edu> - 2015-05-22 21:54 -0400
        Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:12 -0500
        Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:12 -0500
          Re: Ah Python, you have spoiled me for all other languages Terry Reedy <tjreedy@udel.edu> - 2015-05-23 13:26 -0400
      Re: Ah Python, you have spoiled me for all other languages Michael Torrie <torriem@gmail.com> - 2015-05-22 21:31 -0600
        Re: Ah Python, you have spoiled me for all other languages Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-05-23 08:55 +0200
          Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:21 -0500
            Re: Ah Python, you have spoiled me for all other languages Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-05-23 15:24 +0200
              Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-23 20:05 +0300
                Re: Ah Python, you have spoiled me for all other languages Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-05-24 20:29 +0200
          Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-23 15:44 +0300
            Re: Ah Python, you have spoiled me for all other languages Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-05-23 15:17 +0200
            Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-24 00:00 +1000
              Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-23 19:53 +0300
                Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-24 03:41 +1000
                Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-23 22:02 +0300
                Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-24 20:26 +1000
                Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-24 18:26 +0300
                Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-25 01:35 +1000
                Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-25 09:57 +0300
                Re: Ah Python, you have spoiled me for all other languages Laura Creighton <lac@openend.se> - 2015-05-25 11:39 +0200
                Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-25 21:09 +1000
            Re: Ah Python, you have spoiled me for all other languages Michael Torrie <torriem@gmail.com> - 2015-05-23 21:00 -0600
              Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-24 11:23 +0300
      Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-22 22:10 -0600
      Re: Ah Python, you have spoiled me for all other languages amber <amber.of.luxor@gmail.com> - 2015-05-23 04:11 +0000
        Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:11 -0500
        Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:11 -0500
      Re: Ah Python, you have spoiled me for all other languages Ben Finney <ben+python@benfinney.id.au> - 2015-05-23 14:20 +1000
      Re: Ah Python, you have spoiled me for all other languages Michael Torrie <torriem@gmail.com> - 2015-05-22 22:30 -0600
        Re: Ah Python, you have spoiled me for all other languages Jon Ribbens <jon+usenet@unequivocal.co.uk> - 2015-05-23 11:10 +0000
          Re: Ah Python, you have spoiled me for all other languages Tim Chase <python.list@tim.thechases.com> - 2015-05-23 06:34 -0500
          Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 21:40 +1000
          Re: Ah Python, you have spoiled me for all other languages Michael Torrie <torriem@gmail.com> - 2015-05-23 20:57 -0600
          Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-24 01:22 -0600
      Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-22 22:29 -0600
      Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-22 22:49 -0600
      Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 14:49 +1000
        Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-23 06:29 -0500
      Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 14:55 +1000
      Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 14:28 +1000
      Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 14:21 +1000
    Re: Ah Python, you have spoiled me for all other languages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-05-23 14:33 +0200
      Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-23 23:01 +1000
        Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 23:12 +1000
          Re: Ah Python, you have spoiled me for all other languages wxjmfauth@gmail.com - 2015-05-23 23:37 -0700
        Re: Ah Python, you have spoiled me for all other languages Ned Batchelder <ned@nedbatchelder.com> - 2015-05-23 06:35 -0700
          Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-24 00:09 +1000
          Re: Ah Python, you have spoiled me for all other languages Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-07 10:21 +0200
            Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-06-07 21:42 +1000
              Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-06-07 22:08 +1000
                Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-06-07 23:24 +1000
                Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-06-08 00:47 +1000
              Re: Ah Python, you have spoiled me for all other languages random832@fastmail.us - 2015-06-07 10:58 -0400
                Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-06-08 02:28 +1000
  Re: Ah Python, you have spoiled me for all other languages Tony the Tiger <tony@tiger.invalid> - 2015-05-22 16:31 +0000
    Re: Ah Python, you have spoiled me for all other languages Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-22 17:57 +0100
    Re: Ah Python, you have spoiled me for all other languages Tim Daneliuk <tundra@tundraware.com> - 2015-05-22 16:41 -0500
      Re: Ah Python, you have spoiled me for all other languages Tony the Tiger <tony@tiger.invalid> - 2015-05-23 20:25 +0000
  Re: Ah Python, you have spoiled me for all other languages Grant Edwards <invalid@invalid.invalid> - 2015-05-22 17:47 +0000
    Re: Ah Python, you have spoiled me for all other languages Chris Angelico <rosuav@gmail.com> - 2015-05-23 04:11 +1000
    Re: Ah Python, you have spoiled me for all other languages mm0fmf <none@mailinator.com> - 2015-05-22 19:19 +0100
    Re: Ah Python, you have spoiled me for all other languages Laura Creighton <lac@openend.se> - 2015-05-22 21:14 +0200
      Re: Ah Python, you have spoiled me for all other languages Steven D'Aprano <steve@pearwood.info> - 2015-05-23 11:36 +1000
    Re: Ah Python, you have spoiled me for all other languages MRAB <python@mrabarnett.plus.com> - 2015-05-22 20:34 +0100
    Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-22 13:56 -0600
      Re: Ah Python, you have spoiled me for all other languages Marko Rauhamaa <marko@pacujo.net> - 2015-05-22 23:34 +0300
        Re: Ah Python, you have spoiled me for all other languages Tim Chase <python.list@tim.thechases.com> - 2015-05-22 15:55 -0500
        Re: Ah Python, you have spoiled me for all other languages Ethan Furman <ethan@stoneleaf.us> - 2015-05-22 14:15 -0700
        Re: Ah Python, you have spoiled me for all other languages Ian Kelly <ian.g.kelly@gmail.com> - 2015-05-22 15:20 -0600
  Re: Ah Python, you have spoiled me for all other languages Paul Rubin <no.email@nospam.invalid> - 2015-05-22 16:00 -0700
    Re: Ah Python, you have spoiled me for all other languages Michael Torrie <torriem@gmail.com> - 2015-05-22 21:33 -0600

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