Installation of tools used:
apt-get install openssl python3-bson python3-pymongo unzip zip
some code snippet
final Cipher instance = Cipher.getInstance("AES/CBC/NoPadding");
instance.init(2, new SecretKeySpec("bcyangkmluohmars".getBytes(), "AES"), new IvParameterSpec("ubntenterpriseap".getBytes()));
return new CipherInputStream(inputStream, instance);
malformed zip files require fixing before unzip