Goliver challenge updated 2024-Sep-22 04:31:53
There was a tiny edit in Goliver's challenge, please download the source code again.
s/MUL((_x, y), skey)/MUL((_x, _y), skey)
Heidi challenge! 2024-Sep-22 01:37:57
In flag submission please change CCTF to ASIS!
s/CCTF/ASIS
Clement challenge updated! 2024-Sep-22 01:36:01
For simplicity, we reduced the number of STEPS of Clement's challenge.
Avini challenge updated! 2024-Sep-21 06:49:30
I have fixed the Avini Crypto challenge, there is a missing line i += 1 in line 88, so please download again the source code!
Flag Checker 2024-Sep-21 03:01:38
Flag Checker is unavailable for a while because of instability. Please work on other challenges as it might not be unlocked again.
Registration is open now 2024-Sep-14 01:35:35
Registration is open now, please go to the registration page. If you have any problem with the registration process, feel free to contact us. Note that anyone can register, play, and get the CTFTime points.
ASIS CTF Quals 2024 2024-Sep-13 03:25:49
The ASIS CTF website is now online. The countdown timer shows the remaining time to ASIS CTF Quals 2024. There are some links to access News, FAQ, etc.