From: Steffen Klassert <steffen.klassert@secunet.com>
To: Nils Rennebarth <Nils.Rennebarth@web.de>
Cc: linux-crypto@vger.kernel.org
Subject: Re: Long pause when using pcrypt
Date: Fri, 23 Apr 2010 11:49:38 +0200 [thread overview]
Message-ID: <20100423094938.GB2347@secunet.com> (raw)
In-Reply-To: <4BD00F74.9030102@web.de>
On Thu, Apr 22, 2010 at 10:57:24AM +0200, Nils Rennebarth wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> As parallel encryption of ipsec is now in the official kernel, I tried to use
> it, and to actually make ipsec connections use it, I did
>
> $ modprobe tcrypt alg='pcrypt(authenc(hmac(sha1),cbc(aes)))' type=3
>
> This works, but the computer pauses for about 60s when running the modprobe,
> and appears to be completely idle in the meantime. Why is that necessary?
You can try to specify the drivers e.g.
modprobe tcrypt alg="pcrypt(authenc(hmac(sha1-generic),cbc(aes-asm)))" type=3
this should be faster.
>
> Is there another recommended way to instantiate pcrypt, e.g. via netlink?
> I searched for a while, by browsing the sources, but found nothing appropriate.
>
Unfortunately not yet, this should change as soon as we have a generic crypto user
configuration interface.
Steffen
prev parent reply other threads:[~2010-04-23 10:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 8:57 Long pause when using pcrypt Nils Rennebarth
2010-04-23 9:49 ` Steffen Klassert [this message]
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