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Fail hard if no random bytes available for encryption (#3067)

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This commit is contained in:
Oxan van Leeuwen
2022-01-18 02:29:57 +01:00
committed by Jesse Hills
parent 7b03e07908
commit 869743a742
3 changed files with 11 additions and 6 deletions
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esphome/core/helpers.cpp
+3 -4
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@@ -287,13 +287,12 @@ uint32_t random_uint32() {
#endif
}
float random_float() { return static_cast<float>(random_uint32()) / static_cast<float>(UINT32_MAX); }
void random_bytes(uint8_t *data, size_t len) {
bool random_bytes(uint8_t *data, size_t len) {
#ifdef USE_ESP32
esp_fill_random(data, len);
return true;
#elif defined(USE_ESP8266)
if (os_get_random(data, len) != 0) {
ESP_LOGE(TAG, "Failed to generate random bytes!");
}
return os_get_random(data, len) == 0;
#else
#error "No random source available for this configuration."
#endif