[dm-crypt] Using AES-256 Controller Card

Michael Wisniewski wiz561 at gmail.com
Mon Aug 27 20:31:14 CEST 2012


On Mon, Aug 27, 2012 at 1:16 PM, Matthias Schniedermeyer <ms at citd.de> wrote:
> On 27.08.2012 11:33, Brian J. Murrell wrote:
>> On 12-08-27 11:23 AM, Milan Broz wrote:
>> >
>> > It is (SATA) Chipset FDE (full disk encryption), IOW few layers below
>> > dmcrypt operates.
>>
>> Is there any add-on (i.e. USB perhaps) hardware that can assist dm-crypt?
>
> Contrary to OP: AES-NI
>
> I did the test that is descripted on this page:
> http://wiki.debianforum.de/Benchmark_f%C3%BCr_Festplattenverschl%C3%BCsselung
> (Extended to 10GiB instead of the described 512MiB)
>

Thanks for this link.  I was able to match up a similar processor to
mine and find it's 98 MB/s.  It gives me a good idea of what to
expect.

I'm not sure of any addon cards, but it would be great if it was
supported.  I know IPSec can utilize the Hifn addon card for
encryption and takes a lot of the load off the processor.  I'd hate to
blow a couple of hundred on a new motherboard, processor, and memory
if I can spent 50 bucks on an add-in card.

Thanks!


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