Date: Sat, 22 Apr 2017 02:39:02 +0000 From: Colin Percival <cperciva@tarsnap.com> To: Rui Paulo <rpaulo@me.com>, =?UTF-8?Q?Dag-Erling_Sm=c3=b8rgrav?= <des@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r317277 - head/sys/crypto/chacha20 Message-ID: <0100015b9386e2b1-ac40d981-d38e-43f2-9fb5-39e19f928733-000000@email.amazonses.com> In-Reply-To: <AFC8F371-13A1-4075-BF7C-B1E1D9B04A94@me.com> References: <201704220106.v3M16NLH097822@repo.freebsd.org> <AFC8F371-13A1-4075-BF7C-B1E1D9B04A94@me.com>
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On 04/21/17 19:33, Rui Paulo wrote: > On Apr 21, 2017, at 18:06, Dag-Erling Smørgrav <des@freebsd.org> wrote: >> Author: des >> Date: Sat Apr 22 01:06:23 2017 >> New Revision: 317277 >> URL: https://svnweb.freebsd.org/changeset/base/317277 >> >> Log: >> Fix counter increment in Salsa and ChaCha. >> >> In my eagerness to eliminate a branch which is taken once per 2^38 >> bytes of keystream, I forgot that the state words are in host order. >> Thus, the counter increment code worked fine on little-endian >> machines, but not on big-endian ones. Switch to a simpler (branchful) >> solution. > > I’m surprised there’s no mention of who reviewed your change, especially when you’re changing crypto code. Reviewed by: cperciva -- Colin Percival Security Officer Emeritus, FreeBSD | The power to serve Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid
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