def get_cipher_block(cipher_text):  # 4 Blocks 16 bit each
    """
    Divide cipher 16-hex digits into a list of 4 blocks(4 hex digits each)
    :param cipher_text: Ciphered text (16-Hex Digits)
    :return: Cipher text divided into a list of 4 blocks (converted to int)
    """
    cipher_block = []
    [cipher_block.append(int(cipher_text[i:i + 4], 16)) for i in range(0, len(cipher_text), 4)]
    return cipher_block