RNG: Random Number Generator

Overview

The MCUXpresso SDK provides a peripheral driver for the Random Number Generator module of MCUXpresso SDK devices.

The Random Number Generator is a hardware module that generates 32-bit random numbers. Internally it is accessed by calling ROM API. A typical consumer is a pseudo random number generator (PRNG) which can be implemented to achieve both true randomness and cryptographic strength random numbers using the RNG output as its entropy seed. The data generated by a RNG is intended for direct use by functions that generate secret keys, per-message secrets, random challenges, and other similar quantities used in cryptographic algorithms.

Get random data from RNG

1. RNG_GetRandomData() function gets random data from the RNG module.

This example code shows how to get 128-bit random data from the RNG driver.

Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/rng

Functions
static uint32_t	RNG_GetRandomData (void)
	Gets random data. More...

Driver version
#define	FSL_RNG_DRIVER_VERSION   (MAKE_VERSION(2, 0, 0))
	RNG driver version 2.0.0. More...

Macro Definition Documentation

#define FSL_RNG_DRIVER_VERSION   (MAKE_VERSION(2, 0, 0))

Current version: 2.0.0

Change log:

• Version 2.0.0
  • Initial version.

Function Documentation

static uint32_t RNG_GetRandomData ( void  )

inlinestatic

This function returns single 32 bit random number.

Returns

random data