From: Simon Glass <sjg@chromium.org>
To: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Cc: Roman Kopytin <Roman.Kopytin@kaspersky.com>,
Thomas Perrot <thomas.perrot@bootlin.com>,
Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
U-Boot-Denx <u-boot@lists.denx.de>,
Alex Kiernan <alex.kiernan@gmail.com>
Subject: Re: U-boot
Date: Mon, 2 Aug 2021 13:20:15 -0600 [thread overview]
Message-ID: <CAPnjgZ1SGwdcXURZA1dOgz08tLJz4+iAJ24mFo8Qsgv=+qBhOg@mail.gmail.com> (raw)
In-Reply-To: <0e75f275-d661-7b75-6da8-91ecec53d78c@prevas.dk>
Hi Rasmus,
On Mon, 2 Aug 2021 at 03:37, Rasmus Villemoes
<rasmus.villemoes@prevas.dk> wrote:
>
> On 02/08/2021 11.25, Roman Kopytin wrote:
> > Thanks a lot!
> > Yes, looks like using of the 'fdtput' is not very safety for me.
> > As I understood I need to use "fdt_add_pubkey" tool with CMD (example):
> > ./ fdt_add_pubkey -a rsa2048 -k <keydir> -n <keyname> -r <conf|image> my_file.dtb
> >
> > -r <conf|image> is the same as for mkimage? As I remember we can use -r w/o any values in mkimage.
>
> Yes, that's very close to what our Yocto recipe currently does:
>
> for b in ${KERNEL_PUBLIC_KEYS} ; do
> fdt_add_pubkey -a 'sha1,rsa2048' -k
> "${KERNEL_SIGNING_DIR}" -n "$b" \
> -r conf $dtb
> done
>
> I doubt that old patch applies nowadays, I've only forward-ported it to
> 2020.04 internally.
>
> As to Simon's old question of whether it could be done in mkimage with a
> new flag: I'd really prefer not to, mkimage is already an incoherent
> collection of tools that do very different things with different flags.
> Having a flag that says "create and sign this FIT image, and as a side
> effect update $this dtb $overhere with the corresponding public key
> mangled appropriately, oh, and btw, _only_ do that side effect" is a
> non-starter.
I missed that comment at the time...I think this tool is useful though.
The series is marked as deferred in patchwork, probably because the
thread died. How about reposting it?
Regards,
Simon
next prev parent reply other threads:[~2021-08-02 19:20 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <25743c08c4b34f9791e39e687399f802@kaspersky.com>
[not found] ` <CAPnjgZ2BSCMcN=-3Vr4wcgZgtB5ExdAxDPE2yfQvT5WJTVajbg@mail.gmail.com>
2021-07-30 17:34 ` U-boot Roman Kopytin
2021-07-30 17:50 ` U-boot Michael Nazzareno Trimarchi
2021-07-31 3:34 ` U-boot Roman Kopytin
2021-07-31 6:51 ` U-boot Thomas Perrot
2021-07-31 8:26 ` U-boot Roman Kopytin
2021-07-31 16:59 ` U-boot Simon Glass
2021-08-02 9:00 ` U-boot Rasmus Villemoes
2021-08-02 9:25 ` U-boot Roman Kopytin
2021-08-02 9:37 ` U-boot Rasmus Villemoes
2021-08-02 9:55 ` U-boot Roman Kopytin
2021-08-02 11:08 ` U-boot Rasmus Villemoes
2021-08-02 11:18 ` U-boot Roman Kopytin
2021-08-02 12:35 ` U-boot Roman Kopytin
2021-08-02 19:20 ` Simon Glass [this message]
[not found] ` <4ba7d9814f544d56b32589e86a5e0617@kaspersky.com>
2021-11-10 19:37 ` U-boot Simon Glass
2005-11-16 0:15 U-Boot mcnernbm
2005-11-16 1:06 ` U-Boot Wolfgang Denk
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