RE: xAP - protocol security.

["Ian Lowe" <ian@xxxxxxx>]

The idea though, is for phase 1 to be displays, but future expansion to
include control elements. and given the I/O capabilities of the Noritake
VFD
displays, possibly not even *that much* in the future...

I'm staying quiet after my initial doomsaying, not because I am
unconvinced,
but for quite the opposite reason. No free cash to run off and buy
Rabbits/VFDs etc, etc, and i am getting more excited about what is
happening
here by the day!


-----Original Message-----
From: Stuart Grimshaw [mailto:stuart@xxxxxxx]
Sent: 15 August 2002 14:46
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] xAP - protocol security.


On Thursday 15 Aug 2002 2:06 pm, Mark Harrison wrote:
> My view is that most of the messages passing around would be
information
> rather than control.
>
> It would be easy to build a "password" key/value pair into
messages that
> are control-based...
>
> ... however, would be relatively easy to snoop.
>
> The problem is, anything that talks to an embedded device can't use
any
> strong crypto. Therefore needs to be kept physically secure.

I think someone already said it, but if you have problems with people
accessing your xAP devices you have a bigger problem that you need to
sort
out.

Also, I'm not sure what xAP stands for, but if it's x Automation
Protocol,
perhaps xIP for x Information Protocol would be better if no control is
being
done with it? (and  it keeps its nice xippy acronym too :-)


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