Date: Sat, 31 Jan 2015 05:21:46 +0300 From: rozhuk.im@gmail.com To: "'John-Mark Gurney'" <jmg@funkthat.com> Cc: 'Alaksiej' <ac@belngo.info>, 'freebsd-geom' <freebsd-geom@freebsd.org>, 'Adam Nowacki' <nowakpl@platinum.linux.pl>, freebsd-hackers@freebsd.org, 'Gleb Kurtsou' <gleb@freebsd.org> Subject: RE: ChaCha8/12/20 and GEOM ELI tests Message-ID: <54cc3c3c.0606980a.77ac.1d77@mx.google.com> In-Reply-To: <20150131014454.GQ27103@funkthat.com> References: <54b33bfa.e31b980a.3e5d.ffffc823@mx.google.com> <54B4AE55.9090205@platinum.linux.pl> <54b5d299.4914980a.61cd.43a6@mx.google.com> <20150114041708.GA3189@reks> <54b601ec.0515980a.0c9c.47e1@mx.google.com> <20150114082019.GA3669@reks> <54b6ae4c.0905990a.6c9c.642e@mx.google.com> <CAHsZcQH1BTz0Yn%2BxsRFjBxizOLaR=40Rh%2B_3TEmt6Q2mALTOog@mail.gmail.com> <54b6b91b.2aa3700a.3a6c.47b5@mx.google.com> <20150131014454.GQ27103@funkthat.com>
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> > > Excuse me, but if you think your physical medium is either 100% > > > inaccessible to an adversary, or simply not worth a real attack, > and > > > the speed is the concern, then why do you want to use any > encryption > > > at all? > > > > 100% is not available yet introduced GELI keys / mounted drive. > > AES-XTS is good but too slow. > > You do realize that AES-XTS can get >900MB/sec on md mounted disks when > AES-NI is available? and that is single cpu... Make sure you're > running 10 or later... > 650 MB/sec on AMD 5350 with AES-NI. 540 MB/sec on same CPU - ChaCha8 480 MB/sec - ChaCha12 140 MB/sec - AES without AES-NI. I have only ONE CPU with AES-NI. Also, non x86 CPU does not have AES-NI.
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