random_utils.c File Reference

(A little less pseudo) random numbers generation utilities More...

#include <stdlib.h>
#include <string.h>
#include "random_utils.h"
#include "exceptions.h"

Include dependency graph for random_utils.c:

Functions
uint32_t	random_Get (const uint32_t start)
	Generate a random number based on STM32 unique ID.

Detailed Description

(A little less pseudo) random numbers generation utilities

Author

SMFSW

Copyright

MIT (c) 2017-2024, SMFSW

Note

Randomness is enhanced between MCUs (using UID), through calls and time

Warning

Unfortunately, after reset, assuming call will happen at same clock tick, random_Get will give same result (unless start saved/restore from some storage is given as parameter at first call)

Function Documentation

random_Get()

uint32_t random_Get

(

const uint32_t

start

)

Generate a random number based on STM32 unique ID.

Parameters

[in]

start

- Value for a first seed (if a value has been stored for next reset)

Returns

Generated random number