On Fri, Feb 21, 2020 at 03:12:58PM +0900, AKASHI Takahiro wrote:
In the current implementation of FIT_SIGNATURE, five parameters for a RSA public key are required while only two of them are essential. (See rsa-mod-exp.h and uImage.FIT/signature.txt) This is a result of considering relatively limited computer power and resources on embedded systems, while such a assumption may not be quite practical for other use cases.
In this patch, added is a function, rsa_gen_key_prop(), which will generate additional parameters for other uses, in particular UEFI secure boot, on the fly.
Note: the current code uses some "big number" routines from BearSSL for the calculation.
Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org
Applied to u-boot/next, thanks!