[Commotion-dev] Quick Update

[Outback Dingo]

On Tue, Apr 12, 2011 at 8:56 PM, Ben West <me at benwest.name> wrote:

>
>
> On Thu, Apr 7, 2011 at 4:41 AM, Michael Rogers <m-- at gmx.com> wrote:
>
>>
>> > Well, DOSing communication is generally pretty easy on Wi-Fi: just jam
>> > it. Take a microwave oven, connect it to a strong reflector (Sat dish?)
>> and
>> > direct it at the mesh crowd ;-) Zap!
>> > Very low tech. The obvious counter strategy is to simply be very close
>> together.
>> > Then the jammers signal is weaker than yours. A jammer always has to
>> invest lots of
>> > energy to jam a large area (signal strength_at_receiver =
>> initial_strength * 1/distance^2)
>>
>> Wow, I hadn't even thought about attacks against the physical layer! But
>> jamming a large mesh would require a lot of resources, as you say,
>> whereas by attacking the routing protocol you could potentially disable
>> the whole mesh from a single point.
>>
>>
> Besides the microwave oven augmented with an aerial, XKCD also points out
> this fundamental flaw in any security scheme requiring human memory:
> http://xkcd.com/538/
>
> On a more serious note, I am curious if folks on the list have experience
> using tinc for secure tunnels thru production meshes (= being used by folks
> not on a OLSR/OpenWRT/Commotion/etc listserv ;).  I understand the routing
> plane will continue to be vulnerable to outages brought on by brute force
> DOS of some variety.
>

N2N is better suited, either that or WPA-NONE comes to mind



>
> --
> Ben West
> me at benwest.name
>
>
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>
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