[Cerowrt-devel] [Make-wifi-fast] [bufferbloat-fcc-discuss] arstechnica confirmstp-link router lockdown

dpreed at reed.com dpreed at reed.com
Mon Mar 14 23:47:58 EDT 2016

There are many processor architectures that have different instruction memories for different functional units. 

SoCs often have multiple functional units on the same die. For radios that allows for a pipeline. You can limit what an EPROM will accept with a crypto signature.

This is common stuff.

-----Original Message-----
From: "David Lang" <david at lang.hm>
Sent: Mon, Mar 14, 2016 at 3:04 pm
To: dpreed at reed.com
Cc: "Wayne Workman" <wayne.workman2012 at gmail.com>, "bufferbloat-fcc-discuss" <bufferbloat-fcc-discuss at lists.redbarn.org>, cerowrt-devel at lists.bufferbloat.net, make-wifi-fast at lists.bufferbloat.net
Subject: Re: [Make-wifi-fast] [bufferbloat-fcc-discuss] [Cerowrt-devel]arstechnica confirmstp-link router lockdown

On Mon, 14 Mar 2016, dpreed at reed.com wrote:

> An external "limit-exceeding signal detector" could also be very inexpensive, 
> if it did not need to do ADC from the transmitted signal, but could get access 
> to the digital samples and do a simple power measurement.

I agree with this, but have concerns about how you can lock down part of the 
firmware and not all of it.

You still have the problem of telling the chip/algorithm which set of rules to 
enforce, and updating it when the requirements change.

David Lang

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