Date: Wed, 21 Dec 2016 23:29:12 +0100 From: "Jason A. Donenfeld" <Jason@...c4.com> To: kernel-hardening@...ts.openwall.com, "Theodore Ts'o" <tytso@....edu>, George Spelvin <linux@...encehorizons.net>, Eric Dumazet <eric.dumazet@...il.com>, Jason <Jason@...c4.com>, Andi Kleen <ak@...ux.intel.com>, David Miller <davem@...emloft.net>, David Laight <David.Laight@...lab.com>, "Daniel J . Bernstein" <djb@...yp.to>, Eric Biggers <ebiggers3@...il.com>, Hannes Frederic Sowa <hannes@...essinduktion.org>, Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>, Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Andy Lutomirski <luto@...capital.net>, Netdev <netdev@...r.kernel.org>, Tom Herbert <tom@...bertland.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Vegard Nossum <vegard.nossum@...il.com> Subject: Re: Re: HalfSipHash Acceptable Usage On Wed, Dec 21, 2016 at 11:27 PM, Theodore Ts'o <tytso@....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.
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