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uoftctf-2025-chals-public

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Challenge handouts, source code, and solutions for UofTCTF 2025

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# University of Toronto Capture the Flag Competition 2025
This repository contains the solutions to challenges during UofTCTF 2025. The source is also included in most of the challenge directories.

## Challenges

| Challenge Name                                               | Solve Count | Category  |
| ------------------------------------------------------------ | ----------: | --------- |
| [Funny Cipher](./funny-cipher)                               |     231/1510 | Crypto    |
| [Enchanted Oracle](./enchanted-oracle)                       |      79/1510 | Crypto    |
| [Shuffler](./shuffler)                                       |      22/1510 | Crypto    |
| [Causation](./causation)                                     |      11/1510 | Crypto    |
| [Timed AES](./timed-aes)                                     |       4/1510 | Crypto    |
| [POOF](./poof)                                               |     174/1510 | Forensics |
| [Decrypt Me](./decrypt-me)                                   |      86/1510 | Forensics |
| [Minecraft Safe](./minecraft-safe)                           |       3/1510 | Forensics |
| [Don't Sandbox Python 1: n-day?](./dont-sandbox-python-1)    |      11/1510 | Jail      |
| [Smol JS](./smol-js)                                         |       7/1510 | Jail      |
| [Don't Sandbox Python 2: simple](./dont-sandbox-python-2)    |       3/1510 | Jail      |
| [Don't Sandbox Python 3: barebones](./dont-sandbox-python-3) |       3/1510 | Jail      |
| [JS Blacklist V2](./js-blacklist-v2)                         |       0/1510 | Jail      |
| [Sanity Check](./sanity-check)                               |     677/1510 | Misc      |
| [Math Test](./math-test)                                     |     470/1510 | Misc      |
| [Racing](./racing)                                           |     325/1510 | Misc      |
| [Surgery](./surgery)                                         |     298/1510 | Misc      |
| [Racing 2](./racing-2)                                       |      95/1510 | Misc      |
| [Out of the Container](./out-of-the-container)               |      68/1510 | Misc      |
| [Walk in the Forest](./walk-in-the-forest)                   |      22/1510 | Misc      |
| [Simple Signing](./simple-signing)                           |      15/1510 | Misc      |
| [Feedback](./feedback)                                       |      10/1510 | Misc      |
| [Model Assembly Line](./model-assembly-line)                 |       2/1510 | Misc      |
| [Simple File Storage](./simple-file-storage)                 |       2/1510 | Misc      |
| [Baby Pwn](./baby-pwn)                                       |     461/1510 | Pwn       |
| [Baby Pwn 2](./baby-pwn-2)                                   |     266/1510 | Pwn       |
| [Echo](./echo)                                               |      55/1510 | Pwn       |
| [Book Editor](./book-editor)                                 |      28/1510 | Pwn       |
| [Counting Sort](./counting-sort)                             |      25/1510 | Pwn       |
| [Hash Table As a Service](./hash-table-as-a-service)         |      15/1510 | Pwn       |
| [Highly Optimized](./highly-optimized)                       |      83/1510 | Rev       |
| [Py_FlagChecker](./py-flagchecker)                           |      29/1510 | Rev       |
| [Bloatware](./bloatware)                                     |      14/1510 | Rev       |
| [Encrypted Flag](./encrypted-flag)                           |      13/1510 | Rev       |
| [Scavenger Hunt](./scavenger-hunt)                           |     501/1510 | Web       |
| [Prismatic Blogs](./prismatic-blogs)                         |     111/1510 | Web       |
| [CodeDB](./code-db)                                          |      55/1510 | Web       |
| [Prepared: Flag 1](./prepared-1)                             |      33/1510 | Web       |
| [1337 v4ul7](./leet-vault)                                   |      13/1510 | Web       |
| [Prepared: Flag 2](./prepared-2)                             |       6/1510 | Web       |
| [Timeless](./timeless)                                       |       6/1510 | Web       |
| [My Second App](./my-second-app)                             |       5/1510 | Web       |

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