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Date:      Wed, 7 Nov 2001 18:57:31 -0600 (CST)
From:      Mike Silbersack <silby@silby.com>
To:        Nick Slager <ns@BlueSkyFrog.COM>
Cc:        Darren Reed <avalon@cairo.anu.edu.au>, <freebsd-security@FreeBSD.ORG>
Subject:   Re: KAME IPsec on low-end hardware
Message-ID:  <20011107185550.K39446-100000@achilles.silby.com>
In-Reply-To: <20011108105421.A3785@BlueSkyFrog.COM>

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On Thu, 8 Nov 2001, Nick Slager wrote:

> > Hmmm, odd. I've just changed the encryption/hash to DES/MD5.
> > No change in response times.
>
> Hmmm, seems that I failed to do this correctly last night :-\
>
> Changing the encryption/hash to DES/MD5 *does* indeed make a difference
> to response times; I'm consistently seeing rtt times of 13-14ms now.
>
> Compare this to the "default" triple-DES/SHA-1 scheme, which
> consistently comes in at 33-34ms.

Well, if you have a lot of free time, you could try wedging the openssl
assembly cores into the kernel; they perform about 2x faster than their C
equivalents, at least on p5 and better processors.

Mike "Silby" Silbersack


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