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Subject: RE: how to verify setup.exe signature
Date: Wed, 28 Mar 2012 10:14:31 -0500
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From: "Thrall, Bryan" <bryan DOT thrall AT flightsafety DOT com>
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Alexey Luchko wrote on 2012-03-28: 
> Hi!
> 
> I was concerning how to verify http://cygwin.com/setup.exe for some time.
> Today I've got an idea to check for .sig file and it is there too.
> 
> However, cygwin's public key is required to check it.  Where is it supposed
> to be?

I think the links in the first paragraph of http://cygwin.com/install.html should answer your question.

Hope this helps,
--
Bryan Thrall
Principal Software Engineer
FlightSafety International
bryan DOT thrall AT flightsafety DOT com