CTFs
Not included in tables: RTN Community Challenges, CryptoHack, etc. Writeups for ongoing competitions, if any, are available only through that competition’s system and not publicly.
Non-CTF writeups (for vulnerabilities found “in the wild”) are found on this other page.
If you’re a team member and would like your name to be added, changed, removed, pseudonymized, or linked, contact me and I’ll gladly do any modifications.
2025
| Event | Team Size and Name | Position | Score | Start | Length |
|---|---|---|---|---|---|
| NorthSec | 8, JDIS | ? | ? | 2025-05-16 |
48 hours? |
| PolyPwn | 4, “Snack Overflow” | 4/52 | 4267/7532 | 2025-03-29 10:00 |
10 hours |
| CS Games | 2, JDIS as “Azulus” | 2/22 | 64/76 | 2025-03-16 09:00 |
3 hours |
| @HACK | 4, “Snack Overflow” | 16/32 | 3600/9950 | 2025-03-01 13:00 |
25 hours |
| UofTCTF | 5, “PlaceholderName” | 49/897 | 2250/12792 | 2025-01-10 19:00 |
48 hours |
NorthSec 2025:
- Team: aria, camil, justin q, lea, mathieu p, matis b-l, raphael b
PolyPwn 2025:
- Team: aria, justin q, lea
CS Games 2025:
- Reverse: PC From Scratch
- N.B. The CTF was only one part of the competition:
- The full team was 11 people; me and julien were selected for the CTF
- We got 2nd place at the CTF competition, the full team got 3rd place overall
@HACK 2025:
- Team: aria, camil, lea
UofTCTF 2025:
2024
| Event | Team Size and Name | Position | Score | Start | Length |
|---|---|---|---|---|---|
| CyberSci | 5, JDIS as “Québec Mon PayUS” | 6/80 (2/15) | 4963/12581 (/9779) | 2024-11-23 12:00 |
4 hours |
| Hack The Vote | 2, Bit Loopy | 25/757 | 1008/4153 | 2024-11-01 19:00 |
48 hours |
| HeroCTF | 2, Bit Loopy | 30/670 | 3415/9681 | 2024-10-25 15:00 |
50 hours |
| DEADFACE CTF | 3, Bit Loopy | 29/1215 | 5948/12398 | 2024-10-18 10:00 |
34 hours |
| Hackfest CTF | 6, JDIS as ''.join(map(chr, [0x6A, 0x64, 0x69, 0x73])) |
7/35 (Classic) | 3185/6735 | 2024-10-10 21:45 |
24 hours |
| ULCTF | 1, N/A | 18/73 | ? | 2024-05-03 19:00 |
29 hours |
| 24@CTF | 1, N/A | 8/204 | 5626/8770 | 2024-04-06 12:00 |
24 hours |
| CursedCTF | 4, “can we make retri0d [sic] cry” | 80/11058 | 2825/19062 | 2024-03-29 20:00 |
72-ish hours |
CyberSci 2024:
- Crypto: candidate_registry, parts
- Patenthesized positions and score in the table are regional position and score for the top team in the Montréal region.
Hack The Vote 2024:
- Sandbox: small snake
HeroCTF 2024:
DEADFACE CTF 2024:
- Crypto: Cogs in the Machine, Discreet Logging
Hackfest CTF 2024:
- Reverse: Bad App/Bad Daemon
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