Sekaictf 2022 Save
🎵 Official source code and writeups for SekaiCTF 2022!
This repository contains official source code and writeups for the majority of challenges in SekaiCTF 2022.
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Cryptography
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Time Capsule | sahuang | Easy (1) | 178 |
| FaILProof | deuterium | Normal (2) | 62 |
| Secure Image Encryption | Yanhu1 & sahuang | Normal (2) | 49 |
| Diffecient | deuterium | Hard (3) | 7 |
| EZMaze | Utaha | Hard (3) | 11 |
| Robust CBC | sahuang & Yanhu1 | Expert (4) | 10 |
| FaILProof Revenge | deuterium | Expert (4) | 16 |
Forensics
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Blind Infection 1 | Battlemonger | Normal (2) | 23 |
| Broken Converter | pamLELcu | Normal (2) | 94 |
| Blind Infection 2 | Battlemonger | Hard (3) | 15 |
| flag Mono | pamLELcu | Hard (3) | 47 |
| Symbolic Needs 1 | Battlemonger | Hard (3) | 24 |
| Symbolic Needs 2 | Battlemonger | Expert (4) | 18 |
Miscellaneous
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Console Port | pamLELcu | Easy (1) | 291 |
| Sus | pamLELcu | Easy (1) | 95 |
| Vocaloid Heardle | pamLELcu | Normal (2) | 54 |
| Matryoshka | pamLELcu | Expert (4) | 14 |
| Random Song | Yanhu1 | Hard (3) | 13 |
| Borpa | ElleuchX1 | Master (5) | 4 |
PPC
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Let's Play Osu!Mania | sahuang | Easy (1) | 273 |
| Electric Box | sahuang | Hard (3) | 36 |
| Pafs | Radewoosh | Hard (3) | 16 |
| Mind Calculator | pamLELcu | Expert (4) | 16 |
| Console Port Pro | pamLELcu | Master (5) | 7 |
Binary Exploitation
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Save Me | Jonathan | Normal (2) | 44 |
| Hello World Setup | Jonathan | Hard (3) | 7 |
| BFS | Zafirr | Expert (4) | 2 |
| gets | 4n0nym4u5 | Master (5) | 2 |
| GFT | Triacontakai | Master (5) | 2 |
Reverse Engineering
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Perfect Match X-treme | sahuang & enscribe | Easy (1) | 111 |
| Matrix Lab 1 | sahuang | Easy (1) | 191 |
| Matrix Lab 2 | sahuang | Normal (2) | 80 |
| Matrix Lab 3 | sahuang | Hard (3) | 19 |
| Baby Chicken | sahuang | Expert (4) | 6 |
| Berserk | joezid | Master (5) | 2 |
Web
| Name | Author | Difficulty | Solves |
|---|---|---|---|
| Bottled Poem | bwjy | Easy (1) | 146 |
| Sekai Game Start | bwjy | Normal (2) | 63 |
| Issues | Rik | Hard (3) | 49 |
| Crab Commodities | Strellic | Hard (3) | 30 |
| Safelist | Strellic | Expert (4) | 3 |
| Obligatory Calc | Strellic | Master (5) | 1 |
License
Any program and/or source code in this repository is licensed under the GNU Affero General Public License version 3:
SEKAI CTF 2022 Challenges and Solutions
Copyright (C) 2022 Project SEKAI CTF team and contributorsThis program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.
Any non-code/program content (writeups, READMEs, descriptions) in this repository is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0):
SEKAI CTF 2022 Challenges and Solutions by Project SEKAI CTF team and contributors is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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