diff options
| author | robert <robert@hammelrath.com> | 2020-08-22 20:56:26 +0200 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2020-10-29 14:11:08 +1100 |
| commit | b4062894df8e17e11179dcb5f5b28b27eed33aff (patch) | |
| tree | cd65e0bf5a72818f56f44b5c4b9c9d07ca604f9e | |
| parent | 03a1f94ea16a532bd4219092edb06e251d9a0ca5 (diff) | |
esp32/mpconfigport.h: Seed the urandom module on import.
For seeding, the RNG function of the ESP-IDF is used, which is told to be a
true RNG, at least when WiFi or Bluetooth is enabled. Seeding on import is
as per CPython. To obtain a reproducible sequence of pseudo-random numbers
one must explicitly seed with a known value.
| -rw-r--r-- | ports/esp32/mpconfigport.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ports/esp32/mpconfigport.h b/ports/esp32/mpconfigport.h index b63d1f895..f170d7070 100644 --- a/ports/esp32/mpconfigport.h +++ b/ports/esp32/mpconfigport.h @@ -6,6 +6,7 @@ #include <stdint.h> #include <alloca.h> +#include "esp_system.h" #if !MICROPY_ESP_IDF_4 #include "rom/ets_sys.h" @@ -141,6 +142,7 @@ #define MICROPY_PY_UBINASCII_CRC32 (1) #define MICROPY_PY_URANDOM (1) #define MICROPY_PY_URANDOM_EXTRA_FUNCS (1) +#define MICROPY_PY_URANDOM_SEED_INIT_FUNC (esp_random()) #define MICROPY_PY_OS_DUPTERM (1) #define MICROPY_PY_MACHINE (1) #define MICROPY_PY_MACHINE_PIN_MAKE_NEW mp_pin_make_new |