Author: xoru
Date: 2019-03-23 15:50
Summary: This was a very fun challenge! I managed to write a keygen in nicely formatted C++ code for this. I hope someone finds use in this in the progress of understanding this binary.
In my solution.txt file the analysis description is short, but then again there was not much to describe besides from that. A checksum algorithm with a lot of collision. I found that a string of 9 characters in the pattern [0-9a-zA-Z] yields many results.
Attached is solution.txt and keygen.cpp. Compile with g++ -o keygen keygen.cpp and run ./keygen 50 to get 50 keys. I did not include the binary.
Thanks for sharing!
Loading writeup...