text: import nacl.utils
  from Crypto.Cipher import AES
  
  from . import Hash
  
  
  class Encryption(object):
      @staticmethod
      def gen_aes_iv():
          return nacl.utils.random(16)
  
      @staticmethod
      def gen_aes_password():
          return nacl.utils.random(32)
  
      @staticmethod
      def encrypt(plaintext, password, iv, is_simple_password=False):
          password = Hash.doubleSha256(password) if is_simple_password else password
          cryptor = AES.new(password, AES.MODE_CBC, iv)
          ciphertext = cryptor.encrypt(plaintext)
          return ciphertext
  
      @staticmethod
      def decrypt(ciphertext, password, iv, is_simple_password=False):
          password = Hash.doubleSha256(password) if is_simple_password else password
          cryptor = AES.new(password, AES.MODE_CBC, iv)
          plaintext = cryptor.decrypt(ciphertext)
          return plaintext
  