From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marek.vasut@gmail.com>
Date: Wed, 28 Dec 2011 18:53:53 +0100
Subject: [U-Boot] Secure update of uboot devices?
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> With the new threats like Stuxnet and Duqu one need to improve on how new
> updates to software is distrubuted to devcies so one can
> be sure that it's not a hacked or modified software that runs in the
> device. We use uboot + usb stick to update the software in our devices.
> Have anyone been trying out to add e.g cryptated,certificates or rsa keys
> to uboot?

sha1sum of the file isn't enough?