Rating:

Write-up by @doegox and @PapaZours of Quarklabs.
Many thanks to you for the job and GG for solving the first 5 levels !

Level5: [http://wiki.yobi.be/wiki/GreHack_2018_Writeups#Secret_Keeper_level_5_.28500_points.29](http://wiki.yobi.be/wiki/GreHack_2018_Writeups#Secret_Keeper_level_5_.28500_points.29)

Original writeup (http://wiki.yobi.be/wiki/GreHack_2018_Writeups).