def encrypt(self, raw):
if len(raw) % self.bs != 0:
raw = self._pad(raw)
cipher = Encrypter(AESModeOfOperationECB(self.key), padding=PADDING_NONE)
ciphertext = cipher.feed(raw) + cipher.feed()
return base64.b64encode(ciphertext)
def decrypt(self, enc):
"""
Decryption algorithm.
Decrypt raw message only if length > 2.
Padding is not working for lenght less than 2.
"""
decrypted = "{}"
print("Decrypting", enc)
try:
if enc and len(enc) > 2:
enc = base64.b64decode(enc)
print("Encrypted string: ", enc)
if len(enc) % BS != 0:
enc = self._pad(enc)
cipher = Decrypter(AESModeOfOperationECB(self._key),
padding=PADDING_NONE)
decrypted = cipher.feed(enc) + cipher.feed()
return decrypted.decode("utf8").rstrip(chr(0))
return decrypted
except UnicodeDecodeError as err:
_LOGGER.error(f"Unable to decrypt: {decrypted} with error: {err}")
print("CAN'T DECRYPT")
except Exception as err:
print("ERROR ENCRYPTION")
def decrypt(self, enc):
# trying to decrypt empty data fails
if not enc:
return ""
enc = base64.b64decode(enc)
cipher = Decrypter(AESModeOfOperationECB(self.key), padding=PADDING_NONE)
decrypted = cipher.feed(enc) + cipher.feed()
return decrypted.decode("utf8").rstrip(chr(0))
def decrypt(self, enc):
# trying to decrypt empty data fails
if not enc:
return ""
enc = base64.b64decode(enc)
cipher = Decrypter(AESModeOfOperationECB(self.key),
padding=PADDING_NONE)
decrypted = cipher.feed(enc) + cipher.feed()
try:
r = decrypted.decode("utf8").rstrip(chr(0))
except UnicodeDecodeError as e:
raise SystemError("Decryption error (%s). Wrong password?", e)
return r
def decrypt(self, enc):
"""
Decryption algorithm.
Decrypt raw message only if length > 2.
Padding is not working for lenght less than 2.
"""
try:
if enc and len(enc) > 2:
enc = base64.b64decode(enc)
if len(enc) % self._bs != 0:
enc = self._pad(enc)
cipher = Decrypter(AESModeOfOperationECB(self._key),
padding=PADDING_NONE)
decrypted = cipher.feed(enc) + cipher.feed()
return decrypted.decode("utf8").rstrip(chr(0))
return "{}"
except Exception as err:
raise EncryptionException(f"Unable to decrypt: {err}")
def decrypt(self, enc):
"""
Decryption algorithm.
Decrypt raw message only if length > 2.
Padding is not working for lenght less than 2.
"""
try:
if enc and len(enc) > 2:
enc = base64.b64decode(enc)
if len(enc) % self._bs != 0:
enc = self._pad(enc)
print("added padding by ourselves")
else:
print("padding already", len(enc) % self._bs)
print(enc)
cipher = Decrypter(AESModeOfOperationECB(self._key),
padding=PADDING_NONE)
decrypted = cipher.feed(enc) + cipher.feed()
print(decrypted)
return decrypted.decode("utf8").rstrip(chr(0))
return "{}"
except Exception as err:
pass
def decrypt_ipv6_bytes_key(key: bytes, ip: IPv6Address) -> IPv6Address:
return IPv6Address(AESModeOfOperationECB(key).decrypt(ip.packed))