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From: Lars Winterfeld <lars.winterfeld@tu-ilmenau.de>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] The future of disk encryption with LUKS2
Date: Sun, 7 Feb 2016 01:09:46 +0100	[thread overview]
Message-ID: <56B68B4A.4000906@tu-ilmenau.de> (raw)
In-Reply-To: <56B646EA.1050100@whgl.uni-frankfurt.de>

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On 06.02.2016 20:18, Sven Eschenberg wrote:
> Okay, I see, for simple updates a counter could indeed be sufficient to
> ensure consistency by bringing the header with lower counter in sync
> with the other one.

If one is afraid of, e.g., power loss in the middle of rewriting the
header, there could also be a "changing header" flag that is set to 1
first, then header data is changed, then the flag is reset to 0. If you
later find a flag set to 1, you should restore the other "backup"
header. Maybe this is useful in very rare cases, but also very easy to
implement, so one could still do it?



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  reply	other threads:[~2016-02-07  0:13 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-03 13:13 [dm-crypt] The future of disk encryption with LUKS2 .. ink ..
2016-02-03 14:02 ` Yves-Alexis Perez
2016-02-03 14:17 ` Milan Broz
2016-02-03 17:07   ` Arno Wagner
2016-02-03 19:46   ` Sven Eschenberg
2016-02-04  8:38     ` Milan Broz
2016-02-04  9:20       ` Michael Kjörling
2016-02-04 10:02         ` Milan Broz
2016-02-04 11:01           ` Arno Wagner
2016-02-04 16:34         ` Sven Eschenberg
2016-02-04 17:23           ` Arno Wagner
2016-02-04 18:42             ` Michael Kjörling
2016-02-04 20:51               ` Sven Eschenberg
2016-02-05 10:56               ` Arno Wagner
2016-02-05 15:08             ` Robert Nichols
2016-02-05 15:57               ` Arno Wagner
2016-02-05 23:51                 ` Sven Eschenberg
2016-02-06  2:58                   ` Arno Wagner
2016-02-06  3:18                     ` Sven Eschenberg
2016-02-06 10:01                       ` Michael Kjörling
2016-02-06 14:29                         ` Arno Wagner
2016-02-06 18:56                         ` Sven Eschenberg
2016-02-06 19:09                           ` Michael Kjörling
2016-02-06 19:18                             ` Sven Eschenberg
2016-02-07  0:09                               ` Lars Winterfeld [this message]
2016-02-07 23:05                               ` Arno Wagner
2016-02-08  0:25                                 ` Sven Eschenberg
2016-02-08 11:34                                   ` Michael Kjörling
2016-02-08 16:57                                     ` Arno Wagner
2016-02-08 20:19                                       ` f-dm-c
2016-02-08 16:41                                   ` Arno Wagner
2016-02-08 17:26                                     ` Sven Eschenberg
2016-02-08 18:49                                       ` Arno Wagner
2016-02-08 19:08                                         ` Sven Eschenberg
2016-02-08 20:31                                     ` f-dm-c
2016-02-08 20:51                                       ` Sven Eschenberg
2016-02-08 21:10                                         ` Arno Wagner
2016-02-08 21:43                                         ` f-dm-c
2016-02-08 22:04                                           ` Sven Eschenberg
2016-02-08 21:08                                       ` Arno Wagner
2016-02-08 21:45                                         ` f-dm-c
2016-02-06 14:20                       ` Arno Wagner
2016-02-06 19:13                         ` Sven Eschenberg
2016-02-07  7:09                       ` f-dm-c
2016-02-07 23:17                         ` Arno Wagner
2016-02-08  0:40                           ` Sven Eschenberg
2016-02-08  2:06                           ` f-dm-c
2016-02-08  2:46                             ` Sven Eschenberg
2016-02-08  3:43                               ` f-dm-c
2016-02-08  4:32                                 ` Sven Eschenberg
2016-02-08  6:09                                   ` f-dm-c
2016-02-08 16:51                                     ` Arno Wagner
2016-02-08 20:05                                       ` f-dm-c
2016-02-08 20:11                                       ` f-dm-c
2016-02-08 20:35                                         ` Sven Eschenberg
2016-02-08 17:27                                     ` Sven Eschenberg
2016-02-08 16:48                                   ` Arno Wagner
2016-02-08 19:49                                     ` f-dm-c
2016-02-08 19:57                                       ` Arno Wagner
2016-02-08 20:05                                       ` Sven Eschenberg
2016-02-04  9:35       ` Sumaya1960
2016-02-04 10:48         ` Arno Wagner
     [not found]           ` <56B4AC42.7070408@gmx.de>
2016-03-01 12:50             ` [dm-crypt] LUKS NVMe M.2 SSD - save disklayout Sumaya1960
2016-03-01 18:18               ` Sven Eschenberg
2016-03-04 22:05                 ` doark
2016-03-10 12:13                   ` Matthias Schniedermeyer
2016-03-14 18:23                   ` Sven Eschenberg
2016-02-04 16:29   ` [dm-crypt] The future of disk encryption with LUKS2 Yves-Alexis Perez
2016-02-04 17:17     ` Arno Wagner
2016-02-05  6:30       ` Yves-Alexis Perez
2016-02-05 11:02         ` Arno Wagner
2016-02-05 13:13           ` Yves-Alexis Perez
2016-02-05 13:31             ` Arno Wagner
2016-02-05 15:01               ` Yves-Alexis Perez
2016-02-05 15:24                 ` Arno Wagner
2016-02-05 15:44                   ` Milan Broz
2016-02-05 19:45                     ` Arno Wagner
2016-02-05 22:43                       ` Arno Wagner
2016-02-05 16:50                   ` Yves-Alexis Perez
2016-02-05 19:53                     ` Arno Wagner
2016-02-05 21:09                       ` Arno Wagner
     [not found]             ` <20160205133123.GA31320@das-labor.org>
2016-02-05 13:49               ` Zaolin
2016-02-05 15:15                 ` Arno Wagner
2016-02-08 21:51   ` Milan Broz
2016-02-08 22:36     ` Sven Eschenberg
2016-02-09  0:27       ` Milan Broz
2016-02-09  1:02     ` Arno Wagner
2016-02-09 22:08     ` Lars Winterfeld
2016-02-09 23:35       ` Arno Wagner
2016-02-10  0:20         ` Sven Eschenberg
2016-02-10  8:37         ` Milan Broz
2016-02-10 11:47           ` Arno Wagner
2016-02-10 13:48           ` Sven Eschenberg
2016-02-10 14:35             ` Robert Nichols
2016-02-10 15:09               ` Sven Eschenberg
2016-02-10 15:39                 ` Milan Broz
2016-02-10 16:22                   ` Arno Wagner
2016-02-10 17:13                     ` Sven Eschenberg
2016-02-10 16:48                   ` Sven Eschenberg
2016-02-11  5:09                 ` Robert Nichols
2016-02-11  6:44                   ` Milan Broz
2016-02-14  8:20             ` Milan Broz
2016-02-14 21:32               ` Sven Eschenberg
  -- strict thread matches above, loose matches on Subject: below --
2016-03-12 21:20 David Niklas
2016-03-16  6:36 ` Ondrej Kozina
2016-03-25 21:09   ` David Niklas

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