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mkimage: fit: add support to encrypt image with aes

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This commit add the support of encrypting image with aes
in mkimage. To enable the ciphering, a node cipher with
a reference to a key and IV (Initialization Vector) must
be added to the its file. Then mkimage add the encrypted
image to the FIT and add the key and IV to the u-boot
device tree.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
This commit is contained in:
Philippe Reynes
2019-12-18 18:25:41 +01:00
committed by Tom Rini
parent 1c6cd16de8
commit 7298e42250
10 changed files with 716 additions and 2 deletions
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8
Kconfig
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@@ -383,6 +383,14 @@ config FIT_ENABLE_RSASSA_PSS_SUPPORT
Enable this to support the pss padding algorithm as described
in the rfc8017 (https://tools.ietf.org/html/rfc8017).
config FIT_CIPHER
bool "Enable ciphering data in a FIT uImages"
depends on DM
select AES
help
Enable the feature of data ciphering/unciphering in the tool mkimage
and in the u-boot support of the FIT image.
config FIT_VERBOSE
bool "Show verbose messages when FIT images fail"
help