Commit e43f74ac authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Tom Rini
Browse files

doc: verified-boot: fix typos


Signed-off-by: Masahiro Yamada's avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 10b078d8
......@@ -81,7 +81,7 @@ $ openssl rsa -in keys/dev.key -pubout
Device Tree Bindings
--------------------
The following properties are required in the FIT's signature node(s) to
allow thes signer to operate. These should be added to the .its file.
allow the signer to operate. These should be added to the .its file.
Signature nodes sit at the same level as hash nodes and are called
signature@1, signature@2, etc.
......@@ -150,7 +150,7 @@ all available signing keys until one matches.
- required: If present this indicates that the key must be verified for the
image / configuration to be considered valid. Only required keys are
normally verified by the FIT image booting algorithm. Valid values are
"image" to force verification of all images, and "conf" to force verfication
"image" to force verification of all images, and "conf" to force verification
of the selected configuration (which then relies on hashes in the images to
verify those).
......@@ -242,7 +242,7 @@ configuration 3 with kernel 1 and fdt 2:
With signed images, nothing protects against this. Whether it gains an
advantage for the attacker is debatable, but it is not secure.
To solved this problem, we support signed configurations. In this case it
To solve this problem, we support signed configurations. In this case it
is the configurations that are signed, not the image. Each image has its
own hash, and we include the hash in the configuration signature.
......@@ -327,7 +327,7 @@ Enabling FIT Verification
In addition to the options to enable FIT itself, the following CONFIGs must
be enabled:
CONFIG_FIT_SIGNATURE - enable signing and verfication in FITs
CONFIG_FIT_SIGNATURE - enable signing and verification in FITs
CONFIG_RSA - enable RSA algorithm for signing
WARNING: When relying on signed FIT images with required signature check
......@@ -336,7 +336,7 @@ CONFIG_IMAGE_FORMAT_LEGACY
Testing
-------
An easy way to test signing and verfication is to use the test script
An easy way to test signing and verification is to use the test script
provided in test/vboot/vboot_test.sh. This uses sandbox (a special version
of U-Boot which runs under Linux) to show the operation of a 'bootm'
command loading and verifying images.
......
......@@ -93,7 +93,7 @@ include hashes to verify images, so it is relatively straightforward to
add signatures as well.
The public key can be stored in U-Boot's CONFIG_OF_CONTROL device tree in
a standard place. Then when a FIT it loaded it can be verified using that
a standard place. Then when a FIT is loaded it can be verified using that
public key. Multiple keys and multiple signatures are supported.
See signature.txt for more information.
......
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