From: Yegor Yefremov <yegorslists@googlemail.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: barebox <barebox@lists.infradead.org>, kernel@pengutronix.de
Subject: Re: [PATCH 3/3] bootm: add initial FIT support
Date: Tue, 5 Jan 2016 11:40:13 +0100 [thread overview]
Message-ID: <CAGm1_ktRkoqmP4j3AWch1KJqwWzvCqix8c7EUEiZmRd+vh8qKQ@mail.gmail.com> (raw)
In-Reply-To: <568B9BCD.9070509@pengutronix.de>
On Tue, Jan 5, 2016 at 11:32 AM, Marc Kleine-Budde <mkl@pengutronix.de> wrote:
> On 01/05/2016 11:28 AM, Yegor Yefremov wrote:
>> Hi Marc,
>>
>> thanks for reposting the patches.
>>
>> On Tue, Jan 5, 2016 at 9:11 AM, Marc Kleine-Budde <mkl@pengutronix.de> wrote:
>>> From: Jan Luebbe <jlu@pengutronix.de>
>>>
>>> This implementation is inspired by U-Boot's FIT support. Instead of
>>> using libfdt (which does not exist in barebox), configuration signatures
>>> are verified by using a simplified DT parser based on barebox's own
>>> code.
>>>
>>> Currently, only signed configurations with hashed images are supported,
>>> as the other variants are less useful for verified boot. Compatible FIT
>>> images can be created using U-Boot's mkimage tool.
>>
>> What about unsigned images?
>
> That's not our use case. We use plain zImages instead.
The solution would be to introduce an option like in U-Boot?
CONFIG_FIT_SIGNATURE:
This option enables signature verification of FIT uImages,
using a hash signed and verified using RSA. If
CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
hashing is available using hardware, RSA library will use it.
See doc/uImage.FIT/signature.txt for more details.
>> I also get: unsupported algo crc32
>> Is it intended to be supported?
>
> Not for our usecase - feel free to add crc32 support.
OK.
But what about FIT configuration selection syntax?
Yegor
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next prev parent reply other threads:[~2016-01-05 10:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 8:11 [PATCH 0/3] FIT Support Marc Kleine-Budde
2016-01-05 8:11 ` [PATCH 1/3] crypto: add enum Marc Kleine-Budde
2016-01-05 16:54 ` Sam Ravnborg
2016-01-06 14:39 ` Marc Kleine-Budde
2016-01-06 16:55 ` Sam Ravnborg
2016-01-05 8:11 ` [PATCH 2/3] crypto: add RSA support Marc Kleine-Budde
2016-01-05 8:11 ` [PATCH 3/3] bootm: add initial FIT support Marc Kleine-Budde
2016-01-05 10:28 ` Yegor Yefremov
2016-01-05 10:32 ` Marc Kleine-Budde
2016-01-05 10:40 ` Yegor Yefremov [this message]
2016-01-05 11:54 ` Marc Kleine-Budde
2016-01-05 13:05 ` Yegor Yefremov
2016-01-05 13:50 ` Marc Kleine-Budde
2016-01-05 13:58 ` Yegor Yefremov
2016-01-07 17:09 ` Jan Lübbe
2016-01-08 10:36 ` Yegor Yefremov
2016-01-05 20:28 ` Trent Piepho
2016-01-06 16:09 ` Marc Kleine-Budde
2016-01-07 17:00 ` Jan Lübbe
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