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feat(linux): Add ECDSA Signing Guide for k3 devices - #802
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DoobyDoPap
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September 29, 2026 10:38
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praneethbajjuri,
ti-sebin and
uditkumarti
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New issues found with check_toc_txt.py: |
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StaticRocket
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Sep 30, 2026
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New issues found with check_toc_txt.py: |
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@DoobyDoPap I think we might need to update it for fitImage as well, that also uses custmpk.{pem,crt}, do give instructions to change the rsa key to ecdsa in that and see if that works. |
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Hello @StaticRocket , I have completely refactored the doc for this use case, Can you please review the doc again |
manorit2001
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Is it prudent to hold the doc updates till the necessary patches are merged in the SDK? I see that Andrew had posted some comments on the U-Boot patches posted by @DoobyDoPap. And it is possible the code might change in the due review process. |
Add a new page in the U-Boot user guide documenting how to switch K3 boot images from RSA to ECDSA signing. This covers the standalone ti-u-boot build flow placing the ECDSA Key in the appropiate folders and lists the steps to enable signing for boot images & fit sigining. Signed-off-by: Atharv Dubey <a-dubey@ti.com>
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Add a new page in the U-Boot user guide documenting how to switch K3 boot images from RSA to ECDSA signing using CONFIG_K3_KEYFILE_NAME and the k3_ecdsa.config fragment.
This covers the standalone ti-u-boot build flow placing the ECDSA key, merging the config fragment, and building tiboot3.bin and tispl.bin/u-boot.img with BINMAN_INDIRS.