Function nrfxlib_sys::nrf_cc3xx_platform_entropy_get[−][src]

pub unsafe extern "C" fn nrf_cc3xx_platform_entropy_get(
    buffer: *mut u8, 
    length: size_t, 
    olen: *mut size_t
) -> c_int
Expand description

Function to generate entropy using Arm CryptoCell cc3xx

This API corresponds to mbedtls_hardware_poll. It provides TRNG using the Arm CryptoCell cc3xx hardware accelerator.

@note This API is only usable if @ref nrf_cc3xx_platform_init was run prior to calling it.

  • buffer - Pointer to buffer to hold the entropy data.
  • length - Length of the buffer to fill with entropy data.
  • olen - Pointer to variable that will hold the length of generated entropy.

Returns 0 on success Returns Any other error code returned from mbedtls_hardware_poll