1 Answers
The “0217OIWojlj488TaHEsq5r7cNJKbYdWseLEB2pW1FuZKoKjKg5tt1” ID is related to an offline key, so that the STOP Djvu decryptor will be able to decrypt .mado files. But at the moment, the security researchers have not yet determined the offline key, so you need to wait a while. Once the key is determined, you can decrypt the files.