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Message-ID: <CAHmME9qZviooxOW+e=khazG0phSEWwZyKj=eayre_7hs8d+cQw@mail.gmail.com>
Date: Thu, 22 Dec 2016 16:12:24 +0100
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc: kernel-hardening@...ts.openwall.com, "Theodore Ts'o" <tytso@....edu>, 
	Andy Lutomirski <luto@...capital.net>, Netdev <netdev@...r.kernel.org>, 
	LKML <linux-kernel@...r.kernel.org>, 
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>, David Laight <David.Laight@...lab.com>, 
	Eric Dumazet <edumazet@...gle.com>, Linus Torvalds <torvalds@...ux-foundation.org>, 
	Eric Biggers <ebiggers3@...il.com>, Tom Herbert <tom@...bertland.com>, 
	Andi Kleen <ak@...ux.intel.com>, "David S. Miller" <davem@...emloft.net>, 
	Jean-Philippe Aumasson <jeanphilippe.aumasson@...il.com>
Subject: Re: Re: [PATCH v7 3/6] random: use SipHash in
 place of MD5

On Thu, Dec 22, 2016 at 4:05 PM, Hannes Frederic Sowa
<hannes@...essinduktion.org> wrote:
> This change would need a new version of the ext4 super block, because
> you should not change existing file systems.

Right.

As a first step, I'm considering adding a patch to move halfmd4.c
inside the ext4 domain, or at the very least, simply remove it from
linux/cryptohash.h. That'll then leave the handful of bizarre sha1
usages to consider.

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