From: Artem Bityutskiy <dedekind1@gmail.com>
To: Joel Reardon <joel@clambassador.com>
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [patch] Move CRC computation to separate function
Date: Fri, 23 Mar 2012 18:51:55 +0200 [thread overview]
Message-ID: <1332521515.22278.2.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1203231739330.22944@eristoteles.iwoars.net>
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On Fri, 2012-03-23 at 17:45 +0100, Joel Reardon wrote:
> When GCing a data node, it may be reencrypted as a means of organizing the
> KSA and reducing the number of LEBs that need to be erased. A Long term
> keys in one half for stable data, short term in the other. During this
> reencryption the CRC is recomputed. Also, after truncating it the last
> chunk needs to be reencrypted too, or else the key can be used with the
> old version to find the truncated part.
I guess this means there will be more users for this function.
> For the misc.h approach, it does not currently include ubifs-media.h, but
> that is where UBIFS_CRC32_INIT is defined, so move it also to misc.h
Just include it from misc.h.
--
Best Regards,
Artem Bityutskiy
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WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Joel Reardon <joel@clambassador.com>
Cc: linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [patch] Move CRC computation to separate function
Date: Fri, 23 Mar 2012 18:51:55 +0200 [thread overview]
Message-ID: <1332521515.22278.2.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1203231739330.22944@eristoteles.iwoars.net>
[-- Attachment #1: Type: text/plain, Size: 765 bytes --]
On Fri, 2012-03-23 at 17:45 +0100, Joel Reardon wrote:
> When GCing a data node, it may be reencrypted as a means of organizing the
> KSA and reducing the number of LEBs that need to be erased. A Long term
> keys in one half for stable data, short term in the other. During this
> reencryption the CRC is recomputed. Also, after truncating it the last
> chunk needs to be reencrypted too, or else the key can be used with the
> old version to find the truncated part.
I guess this means there will be more users for this function.
> For the misc.h approach, it does not currently include ubifs-media.h, but
> that is where UBIFS_CRC32_INIT is defined, so move it also to misc.h
Just include it from misc.h.
--
Best Regards,
Artem Bityutskiy
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next prev parent reply other threads:[~2012-03-23 16:49 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-09 15:24 [patch] Adding Secure Deletion to UBIFS Joel Reardon
2012-02-09 15:24 ` Joel Reardon
2012-02-09 15:24 ` Joel Reardon
2012-02-13 16:54 ` Artem Bityutskiy
2012-02-13 16:54 ` Artem Bityutskiy
2012-02-23 14:59 ` Joel Reardon
2012-02-23 14:59 ` Joel Reardon
2012-02-23 15:29 ` [patch] Add encryption key parameter to compress/decompress functions Joel Reardon
2012-02-23 15:29 ` Joel Reardon
2012-03-09 7:17 ` Artem Bityutskiy
2012-03-09 7:17 ` Artem Bityutskiy
2012-03-19 16:54 ` [patch] Add design document for UBIFS secure deletion Joel Reardon
2012-03-19 16:54 ` Joel Reardon
2012-03-20 20:10 ` Randy Dunlap
2012-03-20 20:10 ` Randy Dunlap
2012-03-21 13:26 ` Joel Reardon
2012-03-21 13:26 ` Joel Reardon
2012-03-21 16:20 ` Artem Bityutskiy
2012-03-21 16:20 ` Artem Bityutskiy
2012-03-21 16:10 ` Artem Bityutskiy
2012-03-21 16:10 ` Artem Bityutskiy
2012-03-23 13:50 ` Joel Reardon
2012-03-23 13:50 ` Joel Reardon
2012-03-23 15:38 ` Artem Bityutskiy
2012-03-23 15:38 ` Artem Bityutskiy
2012-03-23 16:38 ` Joel Reardon
2012-03-23 16:38 ` Joel Reardon
2012-03-26 15:03 ` Artem Bityutskiy
2012-03-26 15:03 ` Artem Bityutskiy
2012-02-29 17:09 ` [patch] Adding Secure Deletion to UBIFS Artem Bityutskiy
2012-02-29 17:09 ` Artem Bityutskiy
2012-03-15 14:48 ` [patch] Remove notion of key schemes Joel Reardon
2012-03-15 14:48 ` Joel Reardon
2012-03-16 12:43 ` Artem Bityutskiy
2012-03-16 12:43 ` Artem Bityutskiy
2012-03-16 12:51 ` Artem Bityutskiy
2012-03-16 12:51 ` Artem Bityutskiy
2012-03-16 13:34 ` Joel Reardon
2012-03-16 13:34 ` Joel Reardon
2012-03-16 13:41 ` Artem Bityutskiy
2012-03-16 13:41 ` Artem Bityutskiy
2012-03-16 15:02 ` Joel Reardon
2012-03-16 15:02 ` Joel Reardon
2012-03-19 14:56 ` Artem Bityutskiy
2012-03-19 14:56 ` Artem Bityutskiy
2012-02-20 20:15 ` [patch] Move CRC computation to separate function Joel Reardon
2012-02-20 20:15 ` Joel Reardon
2012-02-29 16:10 ` Artem Bityutskiy
2012-02-29 16:10 ` Artem Bityutskiy
2012-03-19 22:46 ` Joel Reardon
2012-03-19 22:46 ` Joel Reardon
2012-03-23 14:09 ` Artem Bityutskiy
2012-03-23 14:09 ` Artem Bityutskiy
2012-03-23 16:45 ` Joel Reardon
2012-03-23 16:45 ` Joel Reardon
2012-03-23 16:51 ` Artem Bityutskiy [this message]
2012-03-23 16:51 ` Artem Bityutskiy
2012-03-25 20:38 ` Joel Reardon
2012-03-25 20:38 ` Joel Reardon
2012-03-26 15:34 ` Artem Bityutskiy
2012-03-26 15:34 ` Artem Bityutskiy
2012-03-25 21:11 ` [patch] Add a encryption key parameter to the compress / decompress function Joel Reardon
2012-03-25 21:11 ` Joel Reardon
2012-03-25 21:38 ` [patch] Add cryptographic functionality when a key is passed to the compress / decompress functions Joel Reardon
2012-03-25 21:38 ` Joel Reardon
2012-03-27 8:33 ` Artem Bityutskiy
2012-03-27 8:33 ` Artem Bityutskiy
2012-03-29 14:39 ` [patch] UBIFS: " Joel Reardon
2012-03-29 14:39 ` Joel Reardon
2012-04-02 14:36 ` Artem Bityutskiy
2012-04-02 14:36 ` Artem Bityutskiy
2012-04-02 14:48 ` Joel Reardon
2012-04-02 14:48 ` Joel Reardon
2012-04-02 14:57 ` Artem Bityutskiy
2012-04-02 14:57 ` Artem Bityutskiy
2012-04-02 14:58 ` Joel Reardon
2012-04-02 14:58 ` Joel Reardon
2012-04-03 10:29 ` Joel Reardon
2012-04-03 10:29 ` Joel Reardon
2012-04-03 10:41 ` Guillaume LECERF
2012-04-03 10:41 ` Guillaume LECERF
2012-04-03 10:41 ` Guillaume LECERF
2012-04-03 11:35 ` Joel Reardon
2012-04-03 11:35 ` Joel Reardon
2012-04-12 14:05 ` Artem Bityutskiy
2012-04-12 14:05 ` Artem Bityutskiy
2012-03-27 8:27 ` [patch] Add a encryption key parameter to the compress / decompress function Artem Bityutskiy
2012-03-27 8:27 ` Artem Bityutskiy
2012-03-29 14:11 ` [patch] UBIFS: " Joel Reardon
2012-03-29 14:11 ` Joel Reardon
2012-04-02 14:02 ` Artem Bityutskiy
2012-04-02 14:02 ` Artem Bityutskiy
2012-02-29 17:25 ` [patch] Adding Secure Deletion to UBIFS Artem Bityutskiy
2012-02-29 17:25 ` Artem Bityutskiy
2012-03-01 13:41 ` Joel Reardon
2012-03-01 13:41 ` Joel Reardon
2012-03-09 7:36 ` Artem Bityutskiy
2012-03-09 7:36 ` Artem Bityutskiy
2012-03-09 19:29 ` Joel Reardon
2012-03-09 19:29 ` Joel Reardon
2012-03-12 13:30 ` Artem Bityutskiy
2012-03-12 13:30 ` Artem Bityutskiy
2012-03-12 13:34 ` Joel Reardon
2012-03-12 13:34 ` Joel Reardon
2012-03-12 13:36 ` Artem Bityutskiy
2012-03-12 13:36 ` Artem Bityutskiy
2012-03-12 13:37 ` Joel Reardon
2012-03-12 13:37 ` Joel Reardon
2012-03-14 10:20 ` Joel Reardon
2012-03-14 10:20 ` Joel Reardon
2012-03-14 10:27 ` Artem Bityutskiy
2012-03-14 10:27 ` Artem Bityutskiy
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