linux-kernel - Re: comparison of the AF_ALG interface with the /dev/crypto

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Date:	Thu, 01 Sep 2011 08:54:19 +0200
From:	Nikos Mavrogiannopoulos <nmav@...tls.org>
To:	Herbert Xu <herbert@...dor.hengli.com.au>
CC:	cryptodev-linux-devel@....org, linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: comparison of the AF_ALG interface with the /dev/crypto

On 09/01/2011 08:43 AM, Herbert Xu wrote:
> On Thu, Sep 01, 2011 at 08:26:07AM +0200, Nikos Mavrogiannopoulos wrote:
>>
>> Actually this is the reason of the ecb(cipher-null) comparison. To
>> emulate the case of a hardware offload device. I tried to make that
>> clear in the text, but may not be. If you see AF_ALG performs really bad
>> on that case. It performs better when a software or a padlock
>> implementation of AES is involved (which as you say it is a useless
>> use-case).
> It's meaningless because such devices operate at a rate much
> lower than the figures you give.

Have you actually measured that?

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