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On Fri, Feb 24, 2012 at 10:43 AM, Michael Orlitzky <michael@××××××××.com> wrote: |
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> On 02/24/12 02:45, Florian Philipp wrote: |
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>> |
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>> Let's not forget that whenever you are presented with that warning, it |
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>> could also be a man-in-the-middle attack. Therefore just clicking on |
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>> "Accept" on every site is about the stupidest thing you can do. |
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>> |
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>> I'm unsure how the warning looks when you have previously accepted a |
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>> normally untrusted certificate on that site and now it is different |
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>> (which could be an indication of MITM). I hope there is a big red flashy |
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>> warning but I doubt it. |
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>> |
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> |
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> Not if the certificate is "valid." |
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> |
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> The only sane way to handle certificates with parties you've never met |
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> (i.e. every website) is the SSH method: you accept that, no matter what, |
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> there's always going to be one opportunity for a man-in-the-middle |
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> attack. The first time you connect, you save the remote server's |
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> certificate. If it changes, freak out. |
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> |
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> The certificate patrol extension does this: |
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> |
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> http://patrol.psyced.org/ |
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> |
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> With it, self-signed certificates become more secure than CA-signed ones. |
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|
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Thanks for the link. The MultiZilla extension way back in the |
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Netscape/Mozilla/Seamonkey 1.x days treated certificates like this: |
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you had to approve all certs the first time, even if they were from a |
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trusted CA and if it ever changed for any reason, it would refuse to |
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connect unless you approved the new cert. |
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|
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It seems to me that's how it should *always* work, in all software |
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that uses SSL certificates, but I understand wanting to keep it simple |
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for non-technical users... but those are the very users most at risk, |
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probably the most likely to use hostile wifi networks (in my mind, |
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hostile is anything other than the router I control at my house). |
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|
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Additionally http://perspectives-project.org/ or |
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http://convergence.io/ can help you in establishing the initial trust |
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and are an attempt at eliminating the need to trust CAs at all. |
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