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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.
+
+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