From d2cb5acad29db4c98af1a965a9c0d0ce67729984 Mon Sep 17 00:00:00 2001
From: Mathias Tausig <mathias.tausig@fh-campuswien.ac.at>
Date: Mon, 7 Mar 2016 17:20:49 +0100
Subject: [PATCH 2/3] Include RIOT Hardware RNG interface

---
 uECC.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/uECC.c b/uECC.c
index f65fe37..662d899 100644
--- a/uECC.c
+++ b/uECC.c
@@ -2,6 +2,7 @@
 
 #include "uECC.h"
 #include "uECC_vli.h"
+#include "periph/hwrng.h"
 
 #ifndef uECC_RNG_MAX_TRIES
     #define uECC_RNG_MAX_TRIES 64
@@ -170,10 +171,15 @@ static cmpresult_t uECC_vli_cmp_unsafe(const uECC_word_t *left,
     #include "asm_avr.inc"
 #endif
 
+int riot_hwrng(uint8_t *dest, unsigned size) {
+  hwrng_read(dest, size);
+  return 1;
+}
+
 #if default_RNG_defined
 static uECC_RNG_Function g_rng_function = &default_RNG;
 #else
-static uECC_RNG_Function g_rng_function = 0;
+static uECC_RNG_Function g_rng_function = &riot_hwrng;
 #endif
 
 void uECC_set_rng(uECC_RNG_Function rng_function) {
-- 
2.5.0