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mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-01 20:08:26 +00:00
trezor-firmware/tools/firmware_hash.py
2022-05-03 19:00:04 +02:00

30 lines
771 B
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"
SIZE_T1 = (7 * 128 + 64) * 1024
SIZE_T2 = 13 * 128 * 1024
for filename, size in ((FILE_T1, SIZE_T1), (FILE_T2, SIZE_T2)):
try:
data = open(filename, "rb").read()
except FileNotFoundError:
print(f"{filename} not found")
continue
if len(data) > size:
raise ValueError(filename, "too big")
data = data + b"\xff" * (size - len(data))
if len(sys.argv) > 1:
challenge = bytes.fromhex(sys.argv[1])
firmware_hash = blake2s(data, key=challenge).hexdigest()
else:
firmware_hash = blake2s(data).hexdigest()
print(f"{filename}: {firmware_hash}")