Search found 3 matches

by kyklas
Tue Nov 13, 2018 1:22 am
Forum: ESP-IDF
Topic: Non-volatile storage with flash encryption enabled.
Replies: 17
Views: 20376

Re: Non-volatile storage with flash encryption enabled.

I am curious about the NVS encryption key : https://github.com/espressif/esp-idf/blob/fb7ba1baa068a2267ef54b7105cf3c8a004fe4eb/components/nvs_flash/src/nvs_api.cpp#L585 The self generation seems to be based on the Flash Encryption key. However this makes a key made of twice the same 16-byte block. C...
by kyklas
Mon Nov 12, 2018 11:09 pm
Forum: ESP-IDF
Topic: Non-volatile storage with flash encryption enabled.
Replies: 17
Views: 20376

Re: Non-volatile storage with flash encryption enabled.

I am evaluating the NVS with Encryption ( comparing with regular partition encryption ). As far as I understand, NVS encryption is a run-time operation if the key is to be auto generated. This would store run-time data. Any factory data would need to be pre-encrypted which would imply a known key or...
by kyklas
Thu Mar 15, 2018 5:14 pm
Forum: General Discussion
Topic: ESP32 SPI Flash detection
Replies: 0
Views: 2538

ESP32 SPI Flash detection

Hi, I have a ESP32-WROOM-32 module. It is solder on a breakout board and correctly power from a step down regulator. I have been using the module for development, testing my code. I recently run into SPI flash detection issue. The SPI flash comes up once after a long period not powered and then noth...