The encryption algorithms reverse from 99sushe application.
pip install https://github.com/realityone/libcet/zip/master# encoding=utf-8
from libcet import cet
crypter = cet.CETCrypter('XXXXXXXX', 'XXXXXXXX')
ticket = cet.CETTicket(crypter)
print ticket.find_ticket_number('XX', 'XXX', 'XXX', cet_type=cet.CETTypes.CET6)