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pylint

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Victor Shyba 2019-03-11 21:12:04 -03:00 committed by Lex Berezhny
parent 1286417aec
commit cdd25e3b0f
1 changed files with 4 additions and 4 deletions
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8
torba/client/hash.py
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@ -157,16 +157,16 @@ def better_aes_encrypt(secret: str, value: bytes) -> bytes:
def better_aes_decrypt(secret: str, value: bytes) -> bytes:
data = base64.b64decode(value)
type, n, r, p, data = data.split(b':', maxsplit=4)
_, scryp_n, scrypt_r, scrypt_p, data = data.split(b':', maxsplit=4)
init_vector, data = data[:16], data[16:]
key = scrypt(secret.encode(), salt=init_vector, n=int(n), r=int(r), p=int(p))
key = scrypt(secret.encode(), init_vector, int(scryp_n), int(scrypt_r), int(scrypt_p))
decryptor = Cipher(AES(key), modes.CBC(init_vector), default_backend()).decryptor()
unpadder = PKCS7(AES.block_size).unpadder()
return unpadder.update(decryptor.update(data)) + unpadder.finalize()
def scrypt(passphrase, salt, n=1<<13, r=16, p=1):
kdf = Scrypt(salt, length=32, n=n, r=r, p=p, backend=default_backend())
def scrypt(passphrase, salt, scrypt_n=1<<13, scrypt_r=16, scrypt_p=1):
kdf = Scrypt(salt, length=32, n=scrypt_n, r=scrypt_r, p=scrypt_p, backend=default_backend())
return kdf.derive(passphrase)