[PATCH 00/13] EFI: capsule: ti: enable authenticated capsules

Heinrich Schuchardt xypron.glpk at gmx.de
Tue Apr 9 05:29:54 CEST 2024


On 4/8/24 23:33, Jonathan Humphreys wrote:
> Create an EFI signature list (.esl) file based on the TI dummy key.
> Enable capsule authentication for several TI SoC based platforms: AM64, AM62,
> AM62p, BeaglePlay, J7, and BeagleboneAI.

Hello Jonathan,

with the patch a capsule update will not be possible if the capsule is
not signed with the private key matching the ESL signature key in patch
1/13.

Why should a user want to lock down their board to a private key over
which he has no control? Wouldn't it be in their best interest to create
a key pair themselves?

I would have expected a documentation change explaining this to the users.

Best regards

Heinrich

>
> Jonathan Humphreys (13):
>    ti:keys Add EFI signature list
>    configs: am64x: Set capsule update signature list file
>    configs: am64x: Enable capsule authentication
>    configs: j721e: Set capsule update signature list file
>    configs: j721e: Enable capsule authentication
>    configs: beagleplay: Set capsule update signature list file
>    configs: beagleplay: Enable capsule authentication
>    configs: am62px: Set capsule update signature list file
>    configs: am62px: Enable capsule authentication
>    configs: am62x: Set capsule update signature list file
>    configs: am62x: Enable capsule authentication
>    configs: beagleboneai64: Set capsule update signature list file
>    configs: beagleboneai64: Enable capsule authentication
>
>   arch/arm/mach-k3/keys/custMpk.esl          | Bin 0 -> 1523 bytes
>   configs/am62px_evm_a53_defconfig           |   2 ++
>   configs/am62x_beagleplay_a53_defconfig     |   2 ++
>   configs/am62x_evm_a53_defconfig            |   2 ++
>   configs/am64x_evm_a53_defconfig            |   2 ++
>   configs/j721e_beagleboneai64_a72_defconfig |   2 ++
>   configs/j721e_evm_a72_defconfig            |   2 ++
>   7 files changed, 12 insertions(+)
>   create mode 100644 arch/arm/mach-k3/keys/custMpk.esl
>



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