[14302] in cryptography@c2.net mail archive
Re: efficiency?? vs security with symmetric crypto? (Re: Tinc's response
daemon@ATHENA.MIT.EDU (Sandy Harris)
Sat Sep 27 11:51:23 2003
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Sat, 27 Sep 2003 12:18:08 +0800
From: Sandy Harris <sandy@storm.ca>
To: cryptography@metzdowd.com
In-Reply-To: <20030926222813.GA23106@dual.cypherspace.org>
Adam Back wrote:
> What conceivable trade-offs could you have to make to get acceptable
> performance out of symmetric crypto encrypted+authenticated tunnel?
> All ciphers you should be using are like 50MB/sec on a 1Ghz machine!!
>
There's fairly detailed performance data for Linux FreeS/WAN IPsec
http://www.freeswan.org/freeswan_trees/freeswan-2.02/doc/performance.html
It's around 50 M bit/second on a GHz machine with 3DES. You can
roughly double that with AES.
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