On Nov 1, 2013, at 7:06 PM, Harry Hoffman <hhoffman@ip-solutions.net> wrote:
That's with a recommendation of using RC4.
it’s also with 1024 bit keys in the key exchange.
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@bakker.net> wrote:
* mikal@stillhq.com (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: https://www.imperialviolet.org/2010/06/25/overclocking-ssl.html
"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.