esp-idf/examples/system/ota/pre_encrypted_ota/sdkconfig.defaults

# Default sdkconfig parameters to use the OTA
# partition table layout, with a 4MB flash size
CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
CONFIG_PARTITION_TABLE_TWO_OTA=y
# Enable ESP HTTPS OTA decryption callback
CONFIG_ESP_HTTPS_OTA_DECRYPT_CB=y
feature: Pre Encrypted Binary for OTA updates This feature enables using encrypted binaries for OTA updates Closes https://github.com/espressif/esp-idf/issues/6172 2021-12-17 09:57:14 +00:00			`# Default sdkconfig parameters to use the OTA`
			`# partition table layout, with a 4MB flash size`
			`CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y`
			`CONFIG_PARTITION_TABLE_TWO_OTA=y`
			`# Enable ESP HTTPS OTA decryption callback`
			`CONFIG_ESP_HTTPS_OTA_DECRYPT_CB=y`