2021from public repositories
HKCERT CTF 2021
22 challenges with 22 published solutions between them. CTFtime has no listing for this event at all, so nothing built on CTFtime can show what it was made of. These writeups were found in public repositories instead. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised22
The upstream scoreboard did not say, so neither do we.
01. Feedback
1 official solution02. Shuffle
1 official solution03. The Wave of Us
1 official solution04. Infant Browser
1 official solution05. To Modify the Past
1 official solution07. A Joke Cipher
1 official solution09. Timebomb
1 official solution10. Babyxss
1 official solution11. Scattered
1 official solution12. Step by Step
1 official solution13. The Wilderness
1 official solution14. Cipher Mode Picker
1 official solution15. Tuning Master (Read)
1 official solution16. Because I said it
1 official solution17. All missing
1 official solution18. Steamed Meatball
1 official solution19. The Disappeared
1 official solution20. JQ Playground
1 official solution22. No Door 2
1 official solution24. The Hardest Path
1 official solution25. The remaining one
1 official solution27. Difficult Choice
1 official solution