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hxp 39C3 CTF

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hypersingular

by yyyyyyy
crypto

Difficulty estimate: hard - hard

Points: round(1000 ยท min(1, 10 / (9 + [42 solves]))) = 196 points

Description:

Remember supersingular isogeny crypto? Yeah, that stuff is so last year.

finally: hypersingular curve crypto


Download:

hypersingular-d7a5177d598400f2.tar.xz (16.1 KiB)

Connection (mirrors):

  • nc 91.98.135.161 2730

Solution:


CTFtime Logo CTFtime: Task & Writeups

Solved by:

# Team Time
hypersingular released 2025-12-27 21:17:19 +0000 UTC
๐Ÿฅ‡ Black Bauhinia 2025-12-27 23:57:12 +0000 UTC
๐Ÿฅˆ SNHT 2025-12-28 00:29:34 +0000 UTC
๐Ÿฅ‰ Marcio Herobrine 2025-12-28 00:51:57 +0000 UTC
4 WROng_flag 2025-12-28 00:59:12 +0000 UTC
5 L.A.R.P. 2025-12-28 01:04:20 +0000 UTC
6 Never Stop Exploiting 2025-12-28 01:12:32 +0000 UTC
7 MNGA 2025-12-28 02:57:54 +0000 UTC
8 More Smoked Leet Chicken 2025-12-28 02:59:43 +0000 UTC
9 Dr3ad 2025-12-28 05:41:45 +0000 UTC
10 FMC 2025-12-28 05:47:42 +0000 UTC
11 0xL4ugh - Free Palestine 2025-12-28 06:00:24 +0000 UTC
12 crazyman's friends 2025-12-28 08:55:32 +0000 UTC
13 Redback Crawlers Ensemble 2025-12-28 09:06:18 +0000 UTC
14 Call the Team 2025-12-28 09:14:31 +0000 UTC
15 The Flat Network Society 2025-12-28 11:00:11 +0000 UTC
16 0ops 2025-12-28 11:45:21 +0000 UTC
17 infobahn 2025-12-28 12:02:42 +0000 UTC
18 organisers 2025-12-28 12:21:17 +0000 UTC
19 justCatTheFish 2025-12-28 12:34:13 +0000 UTC
20 pasten 2025-12-28 13:50:47 +0000 UTC
21 dizziness 2025-12-28 14:02:52 +0000 UTC
22 PwnSec 2025-12-28 14:19:37 +0000 UTC
23 0xfun 2025-12-28 15:51:47 +0000 UTC
24 BunkyoWesterns 2025-12-28 16:19:37 +0000 UTC
25 Quriosity 2025-12-28 17:11:05 +0000 UTC
26 H-T8 2025-12-28 20:18:24 +0000 UTC
27 THEM?! 2025-12-28 21:17:55 +0000 UTC
28 FluxFingers 2025-12-28 22:48:25 +0000 UTC
29 mhackeroni 2025-12-28 23:32:01 +0000 UTC
30 Water Paddler 2025-12-28 23:38:06 +0000 UTC
31 lasos 2025-12-28 23:58:09 +0000 UTC
32 ACERGION 2025-12-29 01:18:15 +0000 UTC
33 Fermion 2025-12-29 07:37:25 +0000 UTC
34 HackCompetitiveProgramming 2025-12-29 09:03:00 +0000 UTC
35 Knightsec 2025-12-29 09:51:16 +0000 UTC
36 W4llz 2025-12-29 11:44:34 +0000 UTC
37 pandasiuuuu 2025-12-29 12:20:52 +0000 UTC
38 f0f 2025-12-29 13:49:08 +0000 UTC
39 Hack@Sec 2025-12-29 15:56:07 +0000 UTC
40 Kheshig 2025-12-29 16:19:24 +0000 UTC
41 M4SEC 2025-12-29 18:26:46 +0000 UTC
42 AreDaYush? 2025-12-29 19:40:38 +0000 UTC