something can't be told ; you should found how to use it by yourself.
./hackw -bdh 50 -o FFFFFF -t CUID
-b to output a '.bin' -d to output a '.dump' -h means you have already payed a unit but haven't used it all up.
the follwing number represent the price you want to write it in.
-o means card owner,you should write the UID -t means the card-type ,the following types are supportted right now:
1.UID
2.CUID
3.FUID
4.UFUID
also you can run:
./hackw --help
for usage.
the part of the algorithm can't be made public !!!