lib/rsa/Kconfig

   1 config RSA
   2         bool "Use RSA Library"
   3         select RSA_FREESCALE_EXP if FSL_CAAM
   4         select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
   5         help
   6           RSA support. This enables the RSA algorithm used for FIT image
   7           verification in U-Boot.
   8           See doc/uImage.FIT/signature.txt for more details.
   9           The Modular Exponentiation algorithm in RSA is implemented using
  10           driver model. So CONFIG_DM needs to be enabled by default for this
  11           library to function.
  12           The signing part is build into mkimage regardless of this
  13           option. The software based modular exponentiation is built into
  14           mkimage irrespective of this option.
  15
  16 if RSA
  17 config RSA_SOFTWARE_EXP
  18         bool "Enable driver for RSA Modular Exponentiation in software"
  19         depends on DM && RSA
  20         help
  21           Enables driver for modular exponentiation in software. This is a RSA
  22           algorithm used in FIT image verification. It required RSA Key as
  23           input.
  24           See doc/uImage.FIT/signature.txt for more details.
  25
  26 config RSA_FREESCALE_EXP
  27         bool "Enable RSA Modular Exponentiation with FSL crypto accelerator"
  28         depends on DM && RSA && FSL_CAAM
  29         help
  30         Enables driver for RSA modular exponentiation using Freescale cryptographic
  31         accelerator - CAAM.
  32
  33 endif