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snowyegret23/bundle_xor.py

Created April 18, 2023 12:23
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파일의 특정 부분까지 주어진 xor 키를 사용하여 xor.
Raw
bundle_xor.py
import itertools
file = "testfile.bundle"
xor_key = b"\x43\x73\x6d\x36\x68\x50\x23\x50\x39\x76\x6d\x61"
endpoint = 0x400
with open(file, "rb") as f:
data = f.read()
result = bytes(
itertools.starmap(
lambda x, y: x ^ y, zip(data[:endpoint], itertools.cycle(xor_key))
)
)
with open(f"{file}.dec", "wb") as f:
f.write(result + data[endpoint:])
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