3 select RSA_FREESCALE_EXP if FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
4 select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
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
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.
19 bool "Use RSA Library within SPL"
24 Add RSA signature verification support in SPL.
29 Add RSA signature verification support.
31 config RSA_VERIFY_WITH_PKEY
32 bool "Execute RSA verification without key parameters from FDT"
34 select ASYMMETRIC_KEY_TYPE
35 select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
36 select RSA_PUBLIC_KEY_PARSER
38 The standard RSA-signature verification code (FIT_SIGNATURE) uses
39 pre-calculated key properties, that are stored in fdt blob, in
40 decrypting a signature.
41 This does not suit the use case where there is no way defined to
42 provide such additional key properties in standardized form,
43 particularly UEFI secure boot.
44 This options enables RSA signature verification with a public key
45 directly specified in image_sign_info, where all the necessary
46 key properties will be calculated on the fly in verification code.
48 config RSA_SOFTWARE_EXP
49 bool "Enable driver for RSA Modular Exponentiation in software"
52 Enables driver for modular exponentiation in software. This is a RSA
53 algorithm used in FIT image verification. It required RSA Key as
55 See doc/uImage.FIT/signature.txt for more details.
57 config RSA_FREESCALE_EXP
58 bool "Enable RSA Modular Exponentiation with FSL crypto accelerator"
59 depends on DM && FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
61 Enables driver for RSA modular exponentiation using Freescale cryptographic