sekaictf-2024 - 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]
![Stars][Stars]

This repository contains official source code and writeups for challenges from [SekaiCTF 2024][CTFTime Event].

[CTFTime Event][CTFTime Event] •
[Website][Website] •
[Discord][Discord] •
[Blog][Blog] •
[Twitter][Twitter]

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Blockchains

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

| Name | Author | Difficulty | Solves |
| ---------------------------------------------- | ------ | ---------- | ------ |
| Play to Earn\* | Y4nhu1 | Normal (2) | 68 |
| イベント！\* (Ibennto!) | Y4nhu1 | Hard (3) | 5 |
| SURVIVE\* | Y4nhu1 | Expert (4) | 5 |
| Zoo\* | snwo | Expert (4) | 13 |

Cryptography

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

| Name | Author | Difficulty | Solves |
| ------------------------------------------------------ | ---------- | ---------- | ------ |
| Some Trick | deut-erium | Easy (1) | 127 |
| はやぶさ (Hayabusa) | kanon | Hard (3) | 38 |
| マスタースパーク (Master Spark) | kanon | Hard (3) | 23 |
| Squares | Neobeo | Expert (4) | 2 |
| √163 | Neobeo | Master (5) | 3 |
| zerodaycrypto\* | Neobeo | Append (6) | 4 |

Miscellaneous

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

| Name | Author | Difficulty | Solves |
| --------------------------- | ------ | ---------- | ------ |
| calcql | irogir | Normal (2) | 32 |
| Hijacker | Marc | Expert (4) | 13 |
| Miku Jail | Quasar | Master (5) | 5 |

PPC

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

| Name | Author | Difficulty | Solves |
| --------------------------------------- | -------- | ---------- | ------ |
| Miku | null_awe | Easy (1) | 176 |
| Nokotan | null_awe | Hard (3) | 55 |
| Railgun | null_awe | Master (5) | 18 |

Binary Exploitation

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

| Name | Author | Difficulty | Solves |
| ---------------------------------------- | ----------- | ---------- | ------ |
| nolibc | Marc | Normal (2) | 56 |
| speedpwn\* | Zafirr | Normal (2) | 27 |
| Life Simulator 2 | Zafirr | Hard (3) | 15 |
| Process Flipper | nyancat0131 | Expert (4) | 3 |
| Context Reducer\* | rycbar | Append (6) | 1 |

Reverse Engineering

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

| Name | Author | Difficulty | Solves |
| -------------------------------------------- | ------------ | ---------- | ------ |
| Crack Me | sahuang | Normal (2) | 187 |
| X64 Extension | Iyed | Hard (3) | 64 |
| Magnum Opus | Legoclones | Expert (4) | 22 |
| Secure Computing | molenzwiebel | Master (5) | 6 |
| Sekai Licensing\* | 3dsboy08 | Master (5) | 0 |

Web

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

| Name | Author | Difficulty | Solves |
| ------------------------------ | ------------ | ---------- | ------ |
| Tagless | ElleuchX1 | Easy (1) | 160 |
| Funny lfr | irogir | Normal (2) | 36 |
| Intruder | Marc | Hard (3) | 89 |
| lookup | irogir | Hard (3) | 5 |
| NDWPP | DimasMaulana | Expert (4) | 8 |
| htmlsandbox | arxenix | Master (5) | 4 |

> [!NOTE]
> Challenges marked with an asterisk (*) had a bounty placed on them either during the CTF or afterwards.

License

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

<blockquote>

SEKAI CTF 2024 Challenges and Solutions
Copyright (C) 2024 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 <

</blockquote>

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 2024 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]:
[agpl]:
[cc-by-nc-sa]:
[Non-Code License]:
[Code License]:

项目信息

开发语言：C

Star 数：86

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 2024!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。