mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-16 04:29:08 +00:00
48 lines
1.2 KiB
Python
Executable File
48 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
import sys
|
|
from hashlib import blake2s
|
|
|
|
FILE_T1 = "legacy/firmware/trezor.bin"
|
|
FILE_T2 = "core/build/firmware/firmware.bin"
|
|
|
|
T1_HEADER_MAGIC_OLD = b"TRZR"
|
|
T1_HEADER_OLD_SIZE = 256
|
|
T2_HEADER_MAGIC_VENDOR = b"TRZV"
|
|
|
|
SIZE_T1 = (7 * 128 + 64) * 1024
|
|
SIZE_T2 = 13 * 128 * 1024
|
|
|
|
if len(sys.argv) > 2:
|
|
filenames = sys.argv[2:]
|
|
elif len(sys.argv) == 2:
|
|
filenames = (FILE_T1, FILE_T2)
|
|
else:
|
|
print(f"Usage: {sys.argv[0]} HEX_CHALLENGE [FILE]...")
|
|
print(f" HEX_CHALLENGE: a 0-32 byte challenge in hexadecimal")
|
|
exit(1)
|
|
|
|
|
|
for filename in filenames:
|
|
try:
|
|
data = open(filename, "rb").read()
|
|
except FileNotFoundError:
|
|
print(f"{filename} not found")
|
|
continue
|
|
|
|
offset = 0
|
|
if data[:4] == T2_HEADER_MAGIC_VENDOR:
|
|
size = SIZE_T2
|
|
else:
|
|
size = SIZE_T1
|
|
if data[:4] == T1_HEADER_MAGIC_OLD:
|
|
offset = T1_HEADER_OLD_SIZE
|
|
|
|
if len(data) - offset > size:
|
|
raise ValueError(filename, "too big")
|
|
data = data[offset:] + b"\xff" * (size - len(data) + offset)
|
|
|
|
challenge = bytes.fromhex(sys.argv[1])
|
|
firmware_hash = blake2s(data, key=challenge).hexdigest()
|
|
print(f"{filename}: {firmware_hash}")
|