[98021] in cryptography@c2.net mail archive
Re: Susan Landau Op Ed on new NSA powers
daemon@ATHENA.MIT.EDU (Alex Alten)
Tue Aug 14 15:03:51 2007
Date: Tue, 14 Aug 2007 01:32:32 -0700
To: "Perry E. Metzger" <perry@piermont.com>,cryptography@metzdowd.com
From: Alex Alten <alex@alten.org>
In-Reply-To: <87hcn82z03.fsf@snark.piermont.com>
It seems that a large chunk (and probably relative soon nearly all) voice
is now via VoIP.
And to date, Skype not withstanding, this has all been cleartext
traffic. Using router
netflow records, etc., one can now pinpoint any phone conversation and then
do a pcap
dump. Many Tier 1 through Tier 3 internet carriers are now deploying this
type of L7 deep
packet inspection directed analysis. Currently they are limited to about
10 Gbps (L4 DPI),
but soon 40 Gbps will be available.
- Alex Alten
At 05:12 PM 8/9/2007 -0400, Perry E. Metzger wrote:
>http://www.washingtonpost.com/wp-dyn/content/article/2007/08/08/AR2007080801961.html
>
>Selected quote:
>
> To avoid wiretapping every communication, NSA will need to build
> massive automatic surveillance capabilities into telephone
> switches. Here things get tricky: Once such infrastructure is in
> place, others could use it to intercept communications.
>
> Grant the NSA what it wants, and within 10 years the United States
> will be vulnerable to attacks from hackers across the globe, as
> well as the militaries of China, Russia and other nations.
>
>Perry
>
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Alex Alten
alex@alten.org
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