Hi,
this command is used in SDK examples. You can take a look at:
c:\NXP\S32DS.3.4\S32DS\software\S32SDK_S32K1XX_RTM_4.0.2\examples\S32K144\driver_examples\system\csec_keyconfig\
It's used in function deriveKey() in file:
c:\NXP\S32DS.3.4\S32DS\software\S32SDK_S32K1XX_RTM_4.0.2\examples\S32K144\driver_examples\system\csec_keyconfig\src\csec_utils.c
Regards,
Lukas