hxp 38C3 CTF

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cccircus

by yyyyyyy
crypto

Difficulty estimate: medium - medium

Points: round(1000 Β· min(1, 10 / (9 + [36 solves]))) = 222 points

Description:

Come on, how much more bettererβ„’ do I have to make CRC for it to become secure?!?? πŸŽͺ🐘🦁πŸ”₯🀹


Download:

cccircus-b17dbb48e606a93b.tar.xz (13.2 KiB)

Connection (mirrors):

  • nc 188.245.36.243 7700

Solution:


CTFtime Logo CTFtime: Task & Writeups

Solved by:

# Team Time
cccircus released 2024-12-27 20:00:00 +0000 UTC
πŸ₯‡ Friendly Maltese Citizens 2024-12-27 20:28:20 +0000 UTC
πŸ₯ˆ kalmarunionen 2024-12-27 20:55:57 +0000 UTC
πŸ₯‰ freedom dive 2024-12-27 20:57:59 +0000 UTC
4 Aqua Cat 2024-12-27 20:58:03 +0000 UTC
5 organizers 2024-12-27 21:11:48 +0000 UTC
6 More Smoked Leet Chicken 2024-12-27 21:16:20 +0000 UTC
7 Dragon Sector 2024-12-27 21:34:13 +0000 UTC
8 justCatTheFish 2024-12-27 21:47:31 +0000 UTC
9 🐐 2024-12-27 22:00:57 +0000 UTC
10 The Flat Network Society 2024-12-27 22:10:59 +0000 UTC
11 Never Stop Exploiting 2024-12-27 22:56:04 +0000 UTC
12 FluxFingers 2024-12-27 23:04:35 +0000 UTC
13 KuK Hofhackerei 2024-12-27 23:13:48 +0000 UTC
14 f0f 2024-12-27 23:20:03 +0000 UTC
15 Gimel 2024-12-28 00:54:32 +0000 UTC
16 mode13h 2024-12-28 01:42:55 +0000 UTC
17 CyKor 2024-12-28 01:51:11 +0000 UTC
18 MMM 2024-12-28 01:58:50 +0000 UTC
19 SuperDiceCode 2024-12-28 02:02:13 +0000 UTC
20 RePokemonedCollections 2024-12-28 02:47:19 +0000 UTC
21 Hack@Sec 2024-12-28 04:06:51 +0000 UTC
22 Black Bauhinia 2024-12-28 04:07:23 +0000 UTC
23 ${cystick} 2024-12-28 04:29:09 +0000 UTC
24 *0xA 2024-12-28 04:51:25 +0000 UTC
25 soudureaubeurre 2024-12-28 09:11:17 +0000 UTC
26 nin0 2024-12-28 09:33:23 +0000 UTC
27 USTC-NEBULA 2024-12-28 10:42:44 +0000 UTC
28 SPRUSH 2024-12-28 13:45:31 +0000 UTC
29 P0rtal 2024-12-28 18:45:54 +0000 UTC
30 clrs 2024-12-28 22:04:06 +0000 UTC
31 Pigeon 2024-12-29 02:04:29 +0000 UTC
32 noreply 2024-12-29 02:39:50 +0000 UTC
33 terkctf 2024-12-29 05:05:08 +0000 UTC
34 S1uM4i 2024-12-29 07:24:07 +0000 UTC
35 CoSGang 2024-12-29 10:56:20 +0000 UTC
36 commandos 2024-12-29 13:28:03 +0000 UTC