esp-idf/components/mbedtls/port/esp_hardware.c
Angus Gratton 83a179abb0 esp32: Add esp_fill_random() function
Convenience function to fill a buffer with random bytes.

Add some unit tests (only sanity checks, really.)
2018-09-03 04:39:45 +00:00

25 lines
494 B
C

#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <esp_system.h>
#ifndef MBEDTLS_ENTROPY_HARDWARE_ALT
#error "MBEDTLS_ENTROPY_HARDWARE_ALT should always be set in ESP-IDF"
#endif
int mbedtls_hardware_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
esp_fill_random(output, len);
*olen = len;
return 0;
}