| Ruchika Gupta | d9f23c7 | 2015-01-23 16:01:56 +0530 | [diff] [blame] | 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. |
| Simon Glass | 73223f0 | 2016-02-22 22:55:43 -0700 | [diff] [blame] | 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. |
| Ruchika Gupta | d9f23c7 | 2015-01-23 16:01:56 +0530 | [diff] [blame] | 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 |