Maybe it's just me, but I consider a 100x cost increase significant.  And I
don't buy your assertion that you can do real-time, line-rate scanning and
filtering with a $5k box.  Otherwise routers wouldn't need ASICs.



On Thu, Dec 12, 2013 at 1:24 PM, Nicholas Weaver
<[email protected]>wrote:

>
> On Dec 12, 2013, at 10:20 AM, Richard Barnes <[email protected]> wrote:
> > Using packet injection on the WiFi at the local starbucks...
> >
> > I would note that attack at this level does not really qualify as
> "pervasive".  And that there are sizeable technical differences between
> doing injection on a WiFi link and doing injection in, say, an OC-192.  So
> we should not regard passive and active attack as equivalent.
> >
> > --Richard
>
> There is no difference between the two scenarios, just the cost of the
> hardware: a $35 Raspberry Pi vs a $5000 multicore box running Bro.  The
> technology, techniques, and attacker abilities are the same.
>
> And dollars to doughnuts says France can use this within their boarders on
> OC-192 links.
>
> --
> Nicholas Weaver                  it is a tale, told by an idiot,
> [email protected]                full of sound and fury,
> 510-666-2903                                 .signifying nothing
> PGP: http://www1.icsi.berkeley.edu/~nweaver/data/nweaver_pub.asc
>
>
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