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https://github.com/brain-hackers/u-boot-brain
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![]() Freescale's SEC block has built-in Data Encryption Key(DEK) Blob Protocol which provides a method for protecting a DEK for non-secure memory storage. SEC block protects data in a data structure called a Secret Key Blob, which provides both confidentiality and integrity protection. Every time the blob encapsulation is executed, a AES-256 key is randomly generated to encrypt the DEK. This key is encrypted with the OTP Secret key from SoC. The resulting blob consists of the encrypted AES-256 key, the encrypted DEK, and a 16-bit MAC. During decapsulation, the reverse process is performed to get back the original DEK. A caveat to the blob decapsulation process, is that the DEK is decrypted in secure-memory and can only be read by FSL SEC HW. The DEK is used to decrypt data during encrypted boot. Commands added -------------- dek_blob - encapsulating DEK as a cryptgraphic blob Commands Syntax --------------- dek_blob src dst len Encapsulate and create blob of a len-bits DEK at address src and store the result at address dst. Signed-off-by: Raul Cardenas <Ulises.Cardenas@freescale.com> Signed-off-by: Nitin Garg <nitin.garg@freescale.com> Signed-off-by: Ulises Cardenas <ulises.cardenas@freescale.com> Signed-off-by: Ulises Cardenas-B45798 <Ulises.Cardenas@freescale.com> |
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.. | ||
cpu | ||
dts | ||
imx-common | ||
include | ||
lib | ||
mach-at91 | ||
mach-davinci | ||
mach-highbank | ||
mach-keystone | ||
mach-kirkwood | ||
mach-nomadik | ||
mach-orion5x | ||
mach-tegra | ||
mach-versatile | ||
mvebu-common | ||
config.mk | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |