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Mail Archives: cygwin/2007/05/11/21:48:06

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Date: Fri, 11 May 2007 21:47:20 -0400
From: Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: MD5s of setup.exe on mirrors.
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On Fri, May 11, 2007 at 02:42:33PM -0700, Alexander Sotirov wrote:
>Christopher Faylor wrote:
>>>Nobody seemed to care.  Considering the fact that MD5 collisions are
>>>now trivial to generate, it probably doesn't matter much anyways - the
>>>fact that your copy of setup.exe has the right MD5 doesn't mean that it
>>>hasn't been tampered with.
>>
>>We don't control the content of mirrors.
>>
>>If you think this is an issue, contact the mirror(s) in question.
>
>This is an issue with the Cygwin website, not the mirrors.

That is your opinion.

>There is a chain of trust from http://cygwin.com to the mirrors.  Since
>the official Cygwin site list these mirrors at
>http://cygwin.com/mirrors.html, you're endorsing them as an officially
>approved locations to download Cygwin.  This means that you have to
>monitor reports about misbehaving mirrors and remove ones that
>distribute corrupted or possibly malicious binaries under the Cygwin
>name.

If/when we find a mirror distributing a malicious binary we will remove
it.

However, in the meantime, I would suggest that people only use the
setup.exe that is distributed from cygwin.com, i.e., click on the
"Install Cygwin Now" link.

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