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sao: fix padding

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This commit is contained in:
Hay1tsme 2023-11-09 21:05:30 -05:00
parent 81d588cbc7
commit 8d190ce7f0
1 changed files with 5 additions and 1 deletions
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6
titles/sao/index.py
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@ -128,8 +128,12 @@ class SaoServlet(BaseServlet):
if self.game_cfg.crypt.enable: if self.game_cfg.crypt.enable:
iv = random.randbytes(8) iv = random.randbytes(8)
data_to_crypt = resp[24:]
while len(data_to_crypt) % 8 != 0:
data_to_crypt += b"\x00"
cipher = Blowfish.new(self.game_cfg.crypt.key.encode(), Blowfish.MODE_CBC, iv) cipher = Blowfish.new(self.game_cfg.crypt.key.encode(), Blowfish.MODE_CBC, iv)
data_crypt = cipher.encrypt(resp[24:]) data_crypt = cipher.encrypt(data_to_crypt)
resp = resp[:24] + iv + data_crypt resp = resp[:24] + iv + data_crypt
self.logger.debug(f"Encrypted Response: {resp.hex()}") self.logger.debug(f"Encrypted Response: {resp.hex()}")