def derive_key()

in browsecomp_eval.py [0:0]

• 5 lines of code
• 1 McCabe index (conditional complexity)

def derive_key(password: str, length: int) -> bytes:
    """Derive a fixed-length key from the password using SHA256."""
    hasher = hashlib.sha256()
    hasher.update(password.encode())
    key = hasher.digest()
    return key * (length // len(key)) + key[: length % len(key)]