This quick tutorial will show you how to use GPG to verify the signatures of software packages. The goal is to verify that the software is coming from a trusted source. This guide is for Linux, but will also work on Mac OS X. You’ll just need to download the GPG suite from [gpgtools.org] before starting (and of course, ideally you should verify this package too!).
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Music (with permission):
Stendeck - The Silence After This
Stendeck.com