sekaictf-2023 - SekaiCTF 2的🎵官方源代码和写入

项目说明

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![Banner][Banner]

![Code License: AGPL v3][Code License]
![Non-Code License: CC BY-NC-SA 4.0][Non-Code License]
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This repository contains official source code and writeups for challenges from [SekaiCTF 2023][CTFTime Event].

[Website][Website] •
[Discord][Discord] •
[Blog][Blog] •
[Twitter][Twitter] •
[SekaiCTF 2022][CTF 2022]

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Cryptography

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| ---------------------------------------- | ---------- | ---------- | ------ |
| cryptoGRAPHy 1 | sahuang | Easy (1) | 76 |
| cryptoGRAPHy 2 | sahuang | Normal (2) | 55 |
| Noisy CRC | Utaha | Hard (3) | 49 |
| cryptoGRAPHy 3 | sahuang | Expert (4) | 31 |
| Diffecientwo | deut-erium | Expert (4) | 13 |
| Noisier CRC | Utaha | Expert (4) | 8 |
| RandSubWare | deut-erium | Master (5) | 6 |

Forensics

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| ------------------------------------------------- | ------------- | ---------- | ------ |
| Eval Me | Guesslemonger | Easy (1) | 303 |
| DEF CON In | sahuang | Normal (2) | 148 |
| Infected | Legoclones | Hard (3) | 80 |
| Dumpster Dive | Guesslemonger | Hard (3) | 26 |

Miscellaneous

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| Name | Author | Difficulty | Solves |
| ----------------------------------------------------------------------------------------------- | ------------- | ---------- | ------ |
| I love this world | pamLELcu | Easy (1) | 166 |
| QR God | Guesslemonger | Normal (2) | 13 |
| A letter from the HRM | pamLELcu | Hard (3) | 44 |
| SSH | hfz | Hard (3) | 18 |
| [[Blockchain] Re-Remix](misc/re-remix) | Yanhui | Hard (3) | 9 |
| [[Blockchain] Play for Free](misc/play-for-free) | Yanhui | Expert (4) | 7 |
| SekaiCTFCorp | irogir | Expert (4) | 4 |
| Just Another Pickle Jail | Quasar | Master (5) | 5 |

PPC

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| ---------------------------------------------------------------------- | ----------------- | ---------- | ------ |
| Wiki Game | sahuang | Easy (1) | 284 |
| Purple Sheep Apple Rush | Lior | Hard (3) | 35 |
| Mikusweeper | sahuang, pamLELcu | Hard (3) | 50 |
| Project Sekai Event Planner | SEEM, sahuang | Master (5) | 2 |

Binary Exploitation

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| ---------------------------------------------- | ------------ | ---------- | ------ |
| Cosmic Ray | Rench | Easy (1) | 149 |
| Network Tools | Johnathan | Normal (2) | 110 |
| Text Sender | Johnathan | Hard (3) | 31 |
| Algorithm Multitool | Zafirr | Expert (4) | 2 |
| Hibana | nyancat0131 | Expert (4) | 0 |
| Notification | Piers | Expert (4) | 1 |
| [[Blockchain] The Bidding](pwn/the-bidding) | Triacontakai | Master (5) | 7 |

Reverse Engineering

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| ---------------------------------------------------------------------- | --------- | ---------- | ------ |
| Azusawa’s Gacha World | enscribe | Easy (1) | 250 |
| Guardians of the Kernel | Iy3dMejri | Normal (2) | 93 |
| Tey Guide | sahuang | Hard (3) | 31 |
| Sahuang Flag Checker | Iy3dMejri | Expert (4) | 13 |
| Conquest of Camelot | sahuang | Expert (4) | 10 |

Web

<img src=" width=250 align="right">

| Name | Author | Difficulty | Solves |
| -------------------------------------- | -------- | ---------- | ------ |
| Scanner Service | irogir | Easy (1) | 146 |
| Frog-WAF | irogir | Hard (3) | 29 |
| Chunky | rik | Hard (3) | 16 |
| Golf Jail | Strellic | Expert (4) | 16 |
| Leakless Note | Strellic | Master (5) | 4 |

License

Any program and/or source code in this repository is licensed under the [GNU Affero General Public License 3][agpl]:

> SEKAI CTF 2023 Challenges and Solutions
> Copyright (C) 2023 Project SEKAI CTF team and contributors
>
> This 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 3 of the License, or
> (at your option) any later .
>
> 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 ha a copy of the GNU Affero General Public License
> along with this program. If not, see <

Any non-code/program content (writeups, READMEs, descriptions) in this repository is licensed under a Creati Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0):

> SEKAI CTF 2023 Challenges and Solutions by Project SEKAI CTF team and contributors is licensed under a [Creati Attribution-NonCommercial-ShareAlike 4.0 International License][cc-by-nc-sa].

[Banner]:
[Stars]:
[CTFTime Event]:
[Website]:
[Blog]:
[Twitter]:
[Discord]:
[CTF 2022]:

[agpl]:
[cc-by-nc-sa]:
[Non-Code License]:
[Code License]:

项目信息

开发语言：Python

Star 数：147

技术要点

该项目属于CTF思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕🎵 Official source code and writeups for SekaiCTF 2023!展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。