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Merge branch 'bugfix/flash_encryption_example_espsecure_public' into 'master'

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examples: fix flash encryption example test (third version)

See merge request espressif/esp-idf!10480
This commit is contained in:
Ivan Grokhotkov 2020-09-18 01:08:55 +08:00
commit a62c6b6b05
2 changed files with 35 additions and 5 deletions
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4
examples/security/flash_encryption/README.md
View File

@ -100,8 +100,8 @@ Reading with esp_partition_read:
I (461) example: 0x3ffb4da0 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f |................|
I (471) example: 0x3ffb4db0 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f |................|
Reading with spi_flash_read:
I (491) example: 0x3ffb4da0 29 68 2e 13 88 a0 5b 7f cc 6b 39 f9 d7 7b 32 2f |)h....[..k9..{2/|
I (491) example: 0x3ffb4db0 9f e6 55 37 4b 91 b0 83 cd a6 e9 4e cd fa b4 c7 |..U7K......N....|
I (491) example: 0x3ffb4b30 35 9b f2 07 b4 6d 40 89 28 b4 1e 22 98 7b 4a 36 |5....m@.(..".{J6|
I (491) example: 0x3ffb4b40 ba 89 81 67 77 a3 60 5e 0a e7 51 01 b3 58 c2 f6 |...gw.`^..Q..X..|
```
## Troubleshooting

36
examples/security/flash_encryption/example_test.py
View File

@ -1,5 +1,19 @@
from __future__ import print_function
import binascii
from io import BytesIO
from collections import namedtuple
import os
import sys
import ttfw_idf
try:
import espsecure
except ImportError:
idf_path = os.getenv("IDF_PATH")
if not idf_path or not os.path.exists(idf_path):
raise
sys.path.insert(0, os.path.join(idf_path, "components", "esptool_py", "esptool"))
import espsecure
# To prepare a test runner for this example:
@ -14,15 +28,31 @@ def test_examples_security_flash_encryption(env, extra_data):
dut = env.get_dut('flash_encryption', 'examples/security/flash_encryption', dut_class=ttfw_idf.ESP32DUT)
# start test
dut.start_app()
# calculate the expected ciphertext
flash_addr = dut.app.partition_table["storage"]["offset"]
plain_hex_str = '00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f'
plain_data = binascii.unhexlify(plain_hex_str.replace(' ', ''))
# Emulate espsecure encrypt_flash_data command
EncryptFlashDataArgs = namedtuple('EncryptFlashDataArgs', ['output', 'plaintext_file', 'address', 'keyfile', 'flash_crypt_conf'])
args = EncryptFlashDataArgs(BytesIO(), BytesIO(plain_data), flash_addr, BytesIO(b'\x00' * 32), 0xF)
espsecure.encrypt_flash_data(args)
expected_ciphertext = args.output.getvalue()
hex_ciphertext = binascii.hexlify(expected_ciphertext).decode('ascii')
expected_str = (' '.join(hex_ciphertext[i:i + 2] for i in range(0, 16, 2)) + ' ' +
' '.join(hex_ciphertext[i:i + 2] for i in range(16, 32, 2)))
lines = [
'FLASH_CRYPT_CNT eFuse value is 1',
'Flash encryption feature is enabled in DEVELOPMENT mode',
'with esp_partition_write',
'00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f',
plain_hex_str,
'with esp_partition_read',
'00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f',
plain_hex_str,
'with spi_flash_read',
'29 68 2e 13 88 a0 5b 7f cc 6b 39 f9 d7 7b 32 2f'
expected_str
]
for line in lines:
dut.expect(line, timeout=2)