From: "Theodore Ts'o" <tytso@mit.edu>
To: Avi Deitcher <avi@deitcher.net>
Cc: linux-ext4@vger.kernel.org
Subject: Re: algorithm for half-md4 used in htree directories
Date: Tue, 12 Oct 2021 13:30:46 -0400 [thread overview]
Message-ID: <YWXGRgfxJZMe9iut@mit.edu> (raw)
In-Reply-To: <CAF1vpkiKx3jArgjNBrid9-MSHBweGsFL0zu0UgDX_dq_hrkUgw@mail.gmail.com>
On Mon, Oct 11, 2021 at 07:58:00PM -0700, Avi Deitcher wrote:
> Aha. I missed that the seed is injected into buf before passing it
> into half_md4_transform. I was looking at it as just the empty buffer
> before the first iteration of the loop (or, in my case, since I was
> testing with a 6 char filename, the only iteration).
>
> I will repeat my experiment with that and see if I can tease it out.
BTW, if you are looking for a userspace implementation of the hash,
it's available in libext2fs in e2fsprogs.
Cheers,
- Ted
next prev parent reply other threads:[~2021-10-12 17:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-01 11:49 algorithm for half-md4 used in htree directories Avi Deitcher
2021-10-03 12:47 ` Avi Deitcher
2021-10-03 16:43 ` Andreas Dilger
2021-10-04 7:57 ` Avi Deitcher
2021-10-11 15:30 ` Avi Deitcher
2021-10-11 20:20 ` Theodore Ts'o
2021-10-12 2:58 ` Avi Deitcher
2021-10-12 17:30 ` Theodore Ts'o [this message]
2021-10-13 2:20 ` Avi Deitcher
2021-10-15 18:43 ` Avi Deitcher
2021-10-15 19:10 ` Theodore Ts'o
2021-10-15 19:43 ` Avi Deitcher
2021-10-15 20:30 ` Theodore Ts'o
2021-10-15 19:50 ` Theodore Ts'o
2021-10-18 16:56 ` Avi Deitcher
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