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ref-manual: document authentication key variables

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This documents the variables used to create keys for
signing fitImage.

(From yocto-docs rev: 7d0407249907259b59191e3759a3b140d30d993e)

Signed-off-by: Usama Arif <usama.arif@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Usama Arif
2020-10-01 10:27:13 +01:00
committed by Richard Purdie
parent 2607799cfb
commit 60319a78dc
2 changed files with 26 additions and 1 deletions
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documentation/ref-manual/ref-classes.rst
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@@ -1413,7 +1413,9 @@ variables :term:`UBOOT_SIGN_ENABLE`, :term:`UBOOT_MKIMAGE_DTCOPTS`,
:term:`UBOOT_SIGN_KEYDIR` and :term:`UBOOT_SIGN_KEYNAME` are set
appropriately. The default values used for :term:`FIT_HASH_ALG` and
:term:`FIT_SIGN_ALG` in ``kernel-fitimage`` are "sha256" and
"rsa2048" respectively.
"rsa2048" respectively. The keys for signing fitImage can be generated using
the ``kernel-fitimage`` class when both :term:`FIT_GENERATE_KEYS` and
:term:`UBOOT_SIGN_ENABLE` are set to "1".
.. _ref-classes-kernel-grub: