ESP32 flash 加密测试

https://docs.espressif.com/projects/esp-idf/en/latest/esp32/security/flash-encryption.html#development-mode

使能

espefuse.py -p /dev/ttyUSB0 summary
Connecting....
Detecting chip type... ESP32
espefuse.py v3.0
EFUSE_NAME (Block)                       Description  = [Meaningful Value] [Readable/Writeable] (Hex Value)
----------------------------------------------------------------------------------------
Calibration fuses:
BLK3_PART_RESERVE (BLOCK0):              BLOCK3 partially served for ADC calibration data   = False R/W (0b0)
ADC_VREF (BLOCK0):                       Voltage reference calibration                      = 1065 R/W (0b10101)

Config fuses:
XPD_SDIO_FORCE (BLOCK0):                 Ignore MTDI pin (GPIO12) for VDD_SDIO on reset     = False R/W (0b0)
XPD_SDIO_REG (BLOCK0):                   If XPD_SDIO_FORCE, enable VDD_SDIO reg on reset    = False R/W (0b0)
XPD_SDIO_TIEH (BLOCK0):                  If XPD_SDIO_FORCE & XPD_SDIO_REG                   = 1.8V R/W (0b0)
CLK8M_FREQ (BLOCK0):                     8MHz clock freq override                           = 52 R/W (0x34)
SPI_PAD_CONFIG_CLK (BLOCK0):             Override SD_CLK pad (GPIO6/SPICLK)                 = 0 R/W (0b00000)
SPI_PAD_CONFIG_Q (BLOCK0):               Override SD_DATA_0 pad (GPIO7/SPIQ)                = 0 R/W (0b00000)
SPI_PAD_CONFIG_D (BLOCK0):               Override SD_DATA_1 pad (GPIO8/SPID)                = 0 R/W (0b00000)
SPI_PAD_CONFIG_HD (BLOCK0):              Override SD_DATA_2 pad (GPIO9/SPIHD)               = 0 R/W (0b00000)
SPI_PAD_CONFIG_CS0 (BLOCK0):             Override SD_CMD pad (GPIO11/SPICS0)                = 0 R/W (0b00000)
DISABLE_SDIO_HOST (BLOCK0):              Disable SDIO host                                  = False R/W (0b0)

Efuse fuses:
WR_DIS (BLOCK0):                         Efuse write disable mask                           = 0 R/W (0x0000)
RD_DIS (BLOCK0):                         Efuse read disable mask                            = 0 R/W (0x0)
CODING_SCHEME (BLOCK0):                  Efuse variable block length scheme                
   = NONE (BLK1-3 len=256 bits) R/W (0b00)
KEY_STATUS (BLOCK0):                     Usage of efuse block 3 (reserved)                  = False R/W (0b0)

Identity fuses:
MAC (BLOCK0):                            Factory MAC Address                               
   = c4:4f:33:7c:72:99 (CRC 0xfb OK) R/W 
MAC_CRC (BLOCK0):                        CRC8 for factory MAC address                       = 251 R/W (0xfb)
CHIP_VER_REV1 (BLOCK0):                  Silicon Revision 1                                 = True R/W (0b1)
CHIP_VER_REV2 (BLOCK0):                  Silicon Revision 2                                 = False R/W (0b0)
CHIP_VERSION (BLOCK0):                   Reserved for future chip versions                  = 2 R/W (0b10)
CHIP_PACKAGE (BLOCK0):                   Chip package identifier                            = 0 R/W (0b000)
MAC_VERSION (BLOCK3):                    Version of the MAC field                           = 0 R/W (0x00)

Security fuses:
FLASH_CRYPT_CNT (BLOCK0):                Flash encryption mode counter                      = 0 R/W (0b0000000)
UART_DOWNLOAD_DIS (BLOCK0):              Disable UART download mode (ESP32 rev3 only)       = False R/W (0b0)
FLASH_CRYPT_CONFIG (BLOCK0):             Flash encryption config (key tweak bits)           = 0 R/W (0x0)
CONSOLE_DEBUG_DISABLE (BLOCK0):          Disable ROM BASIC interpreter fallback             = True R/W (0b1)
ABS_DONE_0 (BLOCK0):                     Secure boot V1 is enabled for bootloader image     = False R/W (0b0)
ABS_DONE_1 (BLOCK0):                     Secure boot V2 is enabled for bootloader image     = False R/W (0b0)
JTAG_DISABLE (BLOCK0):                   Disable JTAG                                       = False R/W (0b0)
DISABLE_DL_ENCRYPT (BLOCK0):             Disable flash encryption in UART bootloader        = False R/W (0b0)
DISABLE_DL_DECRYPT (BLOCK0):             Disable flash decryption in UART bootloader        = False R/W (0b0)
DISABLE_DL_CACHE (BLOCK0):               Disable flash cache in UART bootloader             = False R/W (0b0)
BLOCK1 (BLOCK1):                         Flash encryption key                              
   = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W 
BLOCK2 (BLOCK2):                         Secure boot key                                   
   = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W 
BLOCK3 (BLOCK3):                         Variable Block 3                                  
   = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W 

Flash voltage (VDD_SDIO) determined by GPIO12 on reset (High for 1.8V, Low/NC for 3.3V).

esptool.py --chip esp32 -p /dev/ttyUSB0 -b 460800 --before=default_reset --after=no_reset write_flash --flash_mode dio --flash_freq 40m --flash_size 2MB 0xf000 partition_table/partition-table.bin 0x1000 bootloader/bootloader.bin 0x20000 hello-world.bin

--- idf_monitor on /dev/ttyUSB0 115200 ---
--- Quit: Ctrl+]