latest Snowden docs show NSA intercepts all Google and Yahoo DC-to-DC traffic

John Souvestre johns at
Sat Nov 2 04:00:11 UTC 2013

Money.  The better the encryption the more it costs to crack.  With forward
security you can even protect against your private key leaking.

In short, you can raise the stakes and make it economically unfeasible for
even the NSA.


    John Souvestre - New Orleans LA - (504) 454-0899

-----Original Message-----
From: Mike Lyon [mailto:mike.lyon at] 
Sent: Fri, November 01, 2013 9:19 pm
To: Harry Hoffman
Cc: Niels Bakker; nanog at
Subject: Re: latest Snowden docs show NSA intercepts all Google and Yahoo
DC-to-DC traffic

So even if Goog or Yahoo encrypt their data between DCs, what stops the NSA
from decrypting that data? Or would it be done simply to make their lives a
bit more of a PiTA to get the data they want?


> On Nov 1, 2013, at 19:08, Harry Hoffman <hhoffman at> wrote:
> That's with a recommendation of using RC4.
> Head on over to the Wikipedia page for SSL/TLS and then decide if you want
rc4 to be your preference when trying to defend against a adversary with the
resources of a nation-state.
> Cheers,
> Harry
> Niels Bakker <niels=nanog at> wrote:
>> * mikal at (Michael Still) [Fri 01 Nov 2013, 05:27 CET]:
>>> Its about the CPU cost of the crypto. I was once told the number of 
>>> CPUs required to do SSL on web search (which I have now forgotten) 
>>> and it was a bigger number than you'd expect -- certainly hundreds.
>> False: 
>> "On our production frontend machines, SSL/TLS accounts for less than 
>> 1% of the CPU load, less than 10KB of memory per connection and less 
>> than 2% of network overhead. Many people believe that SSL takes a lot 
>> of CPU time and we hope the above numbers (public for the first time) 
>> will help to dispel that."
>>    -- Niels.
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