Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb/STM32WB55_CM0P/SYSCFG_VREFBUF/SYSCFG_SIPCR#0x0
secure IP control register
Enable AES1 KEY[7:0] security.
Enable AES2 security.
Enable PKA security
Enable True RNG security
https://github.com/modm-io/cmsis-svd-stm32