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Date:      Wed, 13 Oct 1999 16:55:17 +0200
From:      Johan Kruger <jkruger@oskar.nanoteq.co.za>
To:        Mark Newton <newton@internode.com.au>, freebsd-hackers@freebsd.org
Subject:   Re: Generating interrupts ?
Message-ID:  <38049D55.FF4E2812@oskar.nanoteq.co.za>
References:  <199910131430.AAA53879@gizmo.internode.com.au>

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Your close.
I actually made a bootable CD which installs a modified version of FreeBSD, with
our product running on on top of it. The CD automatically boots up, installs
everything, configures everything and then it asks you for a password. At this
stage it gathered information of the particular system.
It uses this information and a private key to encrypt the root password and then
generates a signiture. The customer phones / mail us with this signiture, we
decrypt it using our public key. Now we generate the required key which they
have to enter for the installation to complete.

In this signiture we got from them we have the followinf info :
--> Motherboard used
--> Bios Revision
--> Root password
--> admin password
--> other info like disk sizes etc.

Only we have the root password, they can change the admin password, and you have
to log in as admin first before you can login as root.
So, we can do support on the product, since we have the root password, if they
give us access via admin password. No problem, the product has been working
something like this for 11 years.

Now, the machine won't be able to boot if they had'nt entered the correct code
which we mail to them, since the kernel is encrypted with it etc etc.

So can you pleasssseee now tel me how to get this info ?
--> Motherboard used
--> Bios Revision

Greetings

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