config RSA
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bool "Use RSA Library"
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select RSA_FREESCALE_EXP if FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
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select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
|
help
|
RSA support. This enables the RSA algorithm used for FIT image
|
verification in U-Boot.
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See doc/uImage.FIT/signature.txt for more details.
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The Modular Exponentiation algorithm in RSA is implemented using
|
driver model. So CONFIG_DM needs to be enabled by default for this
|
library to function.
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The signing part is build into mkimage regardless of this
|
option. The software based modular exponentiation is built into
|
mkimage irrespective of this option.
|
|
if RSA
|
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config SPL_RSA
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bool "Use RSA Library within SPL"
|
|
config RSA_SOFTWARE_EXP
|
bool "Enable driver for RSA Modular Exponentiation in software"
|
depends on DM
|
help
|
Enables driver for modular exponentiation in software. This is a RSA
|
algorithm used in FIT image verification. It required RSA Key as
|
input.
|
See doc/uImage.FIT/signature.txt for more details.
|
|
config RSA_FREESCALE_EXP
|
bool "Enable RSA Modular Exponentiation with FSL crypto accelerator"
|
depends on DM && FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
|
help
|
Enables driver for RSA modular exponentiation using Freescale cryptographic
|
accelerator - CAAM.
|
|
endif
|
