def getCipherText(self, iv, key, plaintext):
"""
:type iv: bytearray
:type key: bytearray
:type plaintext: bytearray
"""
cipher = AESCipher(key, iv)
return cipher.encrypt(bytes(plaintext))
def getPlainText(self, iv, key, ciphertext):
"""
:type iv: bytearray
:type key: bytearray
:type ciphertext: bytearray
"""
try:
cipher = AESCipher(key, iv)
plaintext = cipher.decrypt(ciphertext)
if sys.version_info >= (3, 0):
return plaintext.decode()
return plaintext
except Exception as e:
raise InvalidMessageException(e)
