SPIFFS mount fails when flash encryption is enabled (IDFGH-3496)

[Buffalchill]

I tried the SPIFFS example while flash encryption was enabled.
the .bin file was encrypted with a pre-generated-key from espsecure.py
and uploaded with the esptool.py

The result was: mount fail. Isn't it possible to use Spiffs if flash encryption is enabled ?

[me-no-dev]

SPIFFS is not supported when flash encryption is enabled. You can use FATFS instead

[Buffalchill]

but the FATFS is only for external SD card not for the onboard storage right ?

[me-no-dev]

FATFS is supported on the flash as well. https://github.com/espressif/esp-idf/tree/master/examples/storage/wear_levelling it's the wear leveling lib that makes it possible to be used when flash is encrypted.

[Buffalchill]

Thank you ! Is this also available in the Arduino-Esp32 ? (I didn't find a sketch or a example, yet)

[Buffalchill]

I tried the FATFS wear leveling example from the esp-idf but it doesn't seem to work with flash encryption.
I also tried the arduino-esp32 EEPROM example which doesn't work too.
It seems like there is no way to store data, without loosing it when esp32 shuts down 🌊

[Buffalchill]

Spiffs and Preferences work with encryption enanbled. Just didn't have the right partition table on my board

[bastianhjaeger]

Spiffs and Preferences work with encryption enanbled. Just didn't have the right partition table on my board

I do not see how SPIFFS can work with encryption (but I am trying to) if I see:

https://github.com/espressif/esp-idf/blob/master/components/spiffs/esp_spiffs.c#L166

@Buffalchill Could you elaborate this, please?