The DSO-NUS CTF 2021 is over!

Here are the top 10 finishers of DSO-NUS CTF 2021:


There were 3 unsolved reverse-engineering challenges. The following are some possible solutions:

Friend (400 pts)

Area 51 (450 pts)

Strange Battery (500 pts)


The Organisers would like to thank all the challenge authors at:

  • DSO for the following categories

    • Mobile 

    • Pwn

    • Reverse Engineering

  • NUS/NCL for the following categories

    • Cryptography

    • Web​