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

Niels Bakker niels=nanog at
Fri Nov 1 22:26:26 UTC 2013

* 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.


"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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