From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: kernel-hardening@lists.openwall.com,
"Theodore Ts'o" <tytso@mit.edu>,
George Spelvin <linux@sciencehorizons.net>,
Eric Dumazet <eric.dumazet@gmail.com>, Jason <Jason@zx2c4.com>,
Andi Kleen <ak@linux.intel.com>,
David Miller <davem@davemloft.net>,
David Laight <David.Laight@aculab.com>,
"Daniel J . Bernstein" <djb@cr.yp.to>,
Eric Biggers <ebiggers3@gmail.com>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Jean-Philippe Aumasson <jeanphilippe.aumasson@gmail.com>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Andy Lutomirski <luto@amacapital.net>,
Netdev <netdev@vger.kernel.org>,
Tom Herbert <tom@herbertland.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Vegard Nossum <vegard.nossum@gmail.com>
Subject: Re: [kernel-hardening] Re: HalfSipHash Acceptable Usage
Date: Wed, 21 Dec 2016 23:29:12 +0100 [thread overview]
Message-ID: <CAHmME9pww5Q0Wy9MtkO7PAx2Tstfp=6Og3qZLZ=Rh8NaFo0Gog@mail.gmail.com> (raw)
On Wed, Dec 21, 2016 at 11:27 PM, Theodore Ts'o <tytso@mit.edu> wrote:
> And "with enough registers" includes ARM and MIPS, right? So the only
> real problem is 32-bit x86, and you're right, at that point, only
> people who might care are people who are using a space-radiation
> hardened 386 --- and they're not likely to be doing high throughput
> TCP connections. :-)
Plus the benchmark was bogus anyway, and when I built a more specific
harness -- actually comparing the TCP sequence number functions --
SipHash was faster than MD5, even on register starved x86. So I think
we're fine and this chapter of the discussion can come to a close, in
order to move on to more interesting things.
next reply other threads:[~2016-12-21 22:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-21 22:29 Jason A. Donenfeld [this message]
2016-12-22 3:55 ` [kernel-hardening] Re: HalfSipHash Acceptable Usage George Spelvin
2016-12-22 4:40 ` Jason A. Donenfeld
-- strict thread matches above, loose matches on Subject: below --
2016-12-21 15:55 George Spelvin
2016-12-21 16:41 ` [kernel-hardening] " Rik van Riel
2016-12-21 3:28 George Spelvin
2016-12-21 5:29 ` Eric Dumazet
2016-12-21 14:42 ` Jason A. Donenfeld
2016-12-21 15:56 ` Eric Dumazet
2016-12-21 16:39 ` [kernel-hardening] " Rik van Riel
2016-12-21 17:08 ` Eric Dumazet
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