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- config RSA
- bool "Use RSA Library"
- select RSA_FREESCALE_EXP if FSL_CAAM
- select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
- help
- RSA support. This enables the RSA algorithm used for FIT image
- verification in U-Boot.
- See doc/uImage.FIT/signature.txt for more details.
- 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.
- The signing part is build into mkimage regardless of this
- option. The software based modular exponentiation is built into
- mkimage irrespective of this option.
- config SPL_RSA
- bool "Use RSA Library within SPL"
- depends on RSA
- if RSA
- config RSA_SOFTWARE_EXP
- bool "Enable driver for RSA Modular Exponentiation in software"
- depends on DM && RSA
- 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 && RSA && FSL_CAAM
- help
- Enables driver for RSA modular exponentiation using Freescale cryptographic
- accelerator - CAAM.
- endif
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