[147651] in cryptography@c2.net mail archive
Re: [Cryptography] Crypto Standards v.s. Engineering habits - Was:
daemon@ATHENA.MIT.EDU (Jerry Leichter)
Sun Oct 13 01:38:05 2013
X-Original-To: cryptography@metzdowd.com
From: Jerry Leichter <leichter@lrw.com>
In-Reply-To: <5258BD71.9060107@echeque.com>
Date: Sat, 12 Oct 2013 07:02:51 -0400
To: jamesd@echeque.com
Cc: cryptography@metzdowd.com
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
On Oct 11, 2013, at 11:09 PM, James A. Donald wrote:
>> Right now we've got a TCP startup, and a TLS startup. It's pretty messy. Adding another startup inside isn't likely to gain popularity.
>
> The problem is that layering creates round trips, and as cpus get ever faster, and pipes ever fatter, round trips become a bigger an bigger problem. Legend has it that each additional round trip decreases usage of your web site by twenty percent, though I am unaware of any evidence on this.
The research is on time delays, which you could easily enough convert to round trips. The numbers are nowhere near 20%, but are significant if you have many users: http://googleresearch.blogspot.com/2009/06/speed-matters.html
-- Jerry
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