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chore: remove ignores from crypto.py (#2787)

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dni ⚡ 2024-12-02 11:47:45 +01:00 committed by GitHub
parent dc22088dcd
commit 4b63d0924e
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1 changed files with 5 additions and 5 deletions
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lnbits/utils/crypto.py
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@ -48,18 +48,18 @@ class AESCipher:
final_key += key
return final_key[:output]
def decrypt(self, encrypted: str) -> str: # type: ignore
def decrypt(self, encrypted: str) -> str:
"""Decrypts a string using AES-256-CBC."""
passphrase = self.passphrase
encrypted = base64.b64decode(encrypted) # type: ignore
assert encrypted[0:8] == b"Salted__"
salt = encrypted[8:16]
encrypted_bytes = base64.b64decode(encrypted)
assert encrypted_bytes[0:8] == b"Salted__"
salt = encrypted_bytes[8:16]
key_iv = self.bytes_to_key(passphrase.encode(), salt, 32 + 16)
key = key_iv[:32]
iv = key_iv[32:]
aes = AES.new(key, AES.MODE_CBC, iv)
try:
return self.unpad(aes.decrypt(encrypted[16:])).decode() # type: ignore
return self.unpad(aes.decrypt(encrypted_bytes[16:])).decode()
except UnicodeDecodeError as exc:
raise ValueError("Wrong passphrase") from exc