[20385] in cryptography@c2.net mail archive
Re: bounded storage model - why is R organized as 2-d array?
daemon@ATHENA.MIT.EDU (Ben Laurie)
Thu Mar 9 14:02:52 2006
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Thu, 09 Mar 2006 18:13:48 +0000
From: Ben Laurie <ben@algroup.co.uk>
To: "Steven M. Bellovin" <smb@cs.columbia.edu>
Cc: alex@alten.org, solinym@gmail.com, cryptography@metzdowd.com
In-Reply-To: <20060309101443.447c6a3e.smb@cs.columbia.edu>
Steven M. Bellovin wrote:
> On Thu, 09 Mar 2006 02:10:58 -0500
> alex@alten.org wrote:
>
>> This is very useful for encrypting things like video
>> streams without an expensive hardware cryptographic accelerator card.
>>
> I think you vastly overestimate how much hardware one needs to do
> something like AES. I ran
>
> dd if=/dev/zero bs=32k count=1024| openssl speed aes-128-cbc
I presume you were expecting this to test encrypting a long stream of
data. It doesn't. "openssl speed" does encryption internally - the stuff
on stdin was ignored. Something like:
dd if=/dev/zero bs=32k count=1024 | openssl enc -aes-128-cbc > /dev/null
is probably what you want (untested).
Cheers,
Ben.
--
http://www.apache-ssl.org/ben.html http://www.links.org/
"There is no limit to what a man can do or how far he can go if he
doesn't mind who gets the credit." - Robert Woodruff
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