From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] Documentation inconsistency -- On-Disk Format
Date: Fri, 21 Nov 2014 11:00:15 +0100 [thread overview]
Message-ID: <20141121100015.GA28037@tansi.org> (raw)
In-Reply-To: <546EEA7B.5010109@gmail.com>
On Fri, Nov 21, 2014 at 08:32:11 CET, Milan Broz wrote:
> On 11/21/2014 03:51 AM, Robert Nichols wrote:
> > I just noticed that in the LUKS On-Disk Format Specification document 1.2.1
> > http://wiki.cryptsetup.googlecode.com/git/LUKS-standard/on-disk-format.pdf
> > the LUKS key slots are numbered 1-8, whereas all the tools number them 0-7.
>
> It is just for "historic" reasons. I can fix it in documentation but old
> documentation is still in place (it is installed e.g. as docs in various distros).
> It could make the problem even worse.
>
> (And changing tools means breaking user scripts which is even worse.)
>
> It is not the first standard which uses pseudo-code description while real
> implementation differs in details.
>
> > That makes communication difficult.
>
> I do not think so. When dealing with users problem always the tool output
> is important. The slot offsets depends on key size so you must have always
> proper luksDump output for the device.
>
> Milan
I would also not change the tools. And FAQ Item 6.12 provides an
alternate reference with numbering 0-7 and all offsets
in hex and dec. I also do not think changing the spec is needed.
Arno
>
>
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> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt
--
Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@wagner.name
GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718
----
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If it's in the news, don't worry about it. The very definition of
"news" is "something that hardly ever happens." -- Bruce Schneier
next prev parent reply other threads:[~2014-11-21 10:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-21 2:51 [dm-crypt] Documentation inconsistency -- On-Disk Format Robert Nichols
2014-11-21 7:32 ` Milan Broz
2014-11-21 10:00 ` Arno Wagner [this message]
2014-11-21 9:56 ` Arno Wagner
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