Splatter_Calc tamuctf2020

Introduction We played tamuctf 2020, it was a 10 day long beginner to intermediate level ctf, 20 teams solved all the problems, we didn’t solve all the problems unfortunately and we ended in rank 25. The reverse problems were simple/okay-ish, most of them are in rust. The challenge This writeup is about a problem called splatter calc, it’s a rust binary that asks for an initial rng kali@kali:/mnt/shared/ctfs/tamuctf20/rev$ ./splatter-calc Please enter an initial rng: 1 Oops, you didn't guess the right number.