Oh just the opposite of what you're claiming. Did you even read the article
about the Beyond Corp project? It is 100% about thinking very hard about
trust and making sure that the trust model used doesn't depend on the
concept of internal/external network.

Also, the type of thinking where two or more machines are connected
directly or are on their own separate network is what lands you in a
situation like BACnet. Now you have a pentester with a vampire tap in the
basement lobby sniffing your unencrypted traffic on your "trusted" BACnet.

On Wed, Nov 11, 2015 at 6:47 PM, Leif Pedersen <bi...@hobbiton.org> wrote:

> On Wed, Nov 11, 2015 at 4:29 PM, Robert Simmons <rsimmo...@gmail.com>
> wrote:
>
>> I don't think there is such a thing as a trusted network. That is a
>> unicorn
>> these days.
>>
>> No networks should be considered trusted.
>>
>
> oh baloney. That's just a clever way to say you want to stop thinking
> about trust.
>
> If I've connected two machines directly, that network is more trustworthy
> than any encryption. This is not rare, but typical for system recovery,
> which is where nc and ssh with the none cipher are highly useful.
>
> It's also not a bridge too far to claim a network is trusted when it has
> 1000 computers on a special-purpose processing network with access only
> allowed by the admins that built it, and perhaps an API. In those networks,
> the nodes work together like storage and CPUs work together in a single
> computer. The only difference is that SATA disks and x86 CPUs are replaced
> by general-purpose computers running Cassandra and Nginx, connected by
> ethernet, so that you can connect thousands together instead of dozens. Do
> you always insist on encryption on your SATA cables and memory buses?
>
> That sort of special-purpose network is not rare either; rather it's
> typical for internet services where the load is beyond what a single
> machine can handle, or clusters that run models that are too large for a
> single machine.
>
> Trustworthy networks do exist. They just aren't the same networks as 20
> years ago.
>
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>
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