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[v2,2/2] rsa: sig: fix config signature check for fit with padding

Message ID 1585411565-6749-3-git-send-email-philippe.reynes@softathome.com
State Accepted
Delegated to: Tom Rini
Headers show
Series test/py: vboot: fix signature check on config node | expand

Commit Message

Philippe Reynes March 28, 2020, 4:06 p.m. UTC
The signature check on config node is broken on fit with padding.
To compute the signature for config node, U-Boot compute the
signature on all properties of requested node for this config,
except for the property "data". But, when padding is used for
binary in a fit, there isn't a property "data" but two properties:
"data-offset" and "data-size". So to fix the check of signature,
we also don't use the properties "data-offset" and "data-size"
when checking the signature on config node.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
 common/image-sig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

- fix spelling in commit message (thanks Simon)
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diff --git a/common/image-sig.c b/common/image-sig.c
index 639a112..8a0ea28 100644
--- a/common/image-sig.c
+++ b/common/image-sig.c
@@ -362,7 +362,7 @@  int fit_image_verify_required_sigs(const void *fit, int image_noffset,
 int fit_config_check_sig(const void *fit, int noffset, int required_keynode,
 			 char **err_msgp)
-	char * const exc_prop[] = {"data"};
+	char * const exc_prop[] = {"data", "data-size", "data-position"};
 	const char *prop, *end, *name;
 	struct image_sign_info info;
 	const uint32_t *strings;