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From: Artem Bityutskiy <dedekind1@gmail.com>
To: Joel Reardon <joel@clambassador.com>
Cc: linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [patch] Remove notion of key schemes
Date: Fri, 16 Mar 2012 15:41:45 +0200	[thread overview]
Message-ID: <1331905305.3730.90.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1203161405090.2249@eristoteles.iwoars.net>

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On Fri, 2012-03-16 at 14:34 +0100, Joel Reardon wrote:
> I actually just copied this comment from the comment following padding1
> and padding2; should they all just be omitted?

Ah, ok, ignore this comment then please.

> As for the ubifs being mounted with the old, it may be best to increase
> the version format number. The old version won't be able to 'read' (i.e.,
> decrypt) the data, while the new version has a switch to enable both
> modes. If new data is written by the old version then the new version will
> also have trouble to read it (unless we set crypto_lookup==0 to mean no
> key). But its probably for the best to just let older version mount the
> security enhanced one as read-only using the version format as the data
> will be anyhow unreadable. Non-security-enhanced ubifs (but
> aware) partitions can set the version format to the older value as they
> will be compatible.

OK. Then I guess the version increment patch should also be separate. In
general, try to make logically independent things separately and keep
patches small.

-- 
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] Remove notion of key schemes
Date: Fri, 16 Mar 2012 15:41:45 +0200	[thread overview]
Message-ID: <1331905305.3730.90.camel@sauron.fi.intel.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1203161405090.2249@eristoteles.iwoars.net>

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On Fri, 2012-03-16 at 14:34 +0100, Joel Reardon wrote:
> I actually just copied this comment from the comment following padding1
> and padding2; should they all just be omitted?

Ah, ok, ignore this comment then please.

> As for the ubifs being mounted with the old, it may be best to increase
> the version format number. The old version won't be able to 'read' (i.e.,
> decrypt) the data, while the new version has a switch to enable both
> modes. If new data is written by the old version then the new version will
> also have trouble to read it (unless we set crypto_lookup==0 to mean no
> key). But its probably for the best to just let older version mount the
> security enhanced one as read-only using the version format as the data
> will be anyhow unreadable. Non-security-enhanced ubifs (but
> aware) partitions can set the version format to the older value as they
> will be compatible.

OK. Then I guess the version increment patch should also be separate. In
general, try to make logically independent things separately and keep
patches small.

-- 
Best Regards,
Artem Bityutskiy

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

  reply	other threads:[~2012-03-16 13:39 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 [this message]
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
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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