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https://github.com/kos0ng/ctf-writeups

CTF Writeups
https://github.com/kos0ng/ctf-writeups

cryptography ctf cybersecurity reverse-engineering web-exploitation writeup

Last synced: about 2 months ago
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CTF Writeups

Host: GitHub
URL: https://github.com/kos0ng/ctf-writeups
Owner: kos0ng
Created: 2019-08-11T04:18:21.000Z (over 5 years ago)
Default Branch: master
Last Pushed: 2024-08-15T11:26:34.000Z (6 months ago)
Last Synced: 2024-08-15T13:00:00.963Z (6 months ago)
Topics: cryptography, ctf, cybersecurity, reverse-engineering, web-exploitation, writeup
Language: Python
Homepage:
Size: 18.4 MB
Stars: 23
Watchers: 2
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

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README

        
## Note

- You can see the detailed writeup at the following [link](https://blog.ryukk.dev/ctfs)

## My Challenge

### Gemastik 2024

| Name     | Category   | Tags | Difficulty | 

| -------- | ---------- | ---- | ---------- |

| [46_68x](challenges/2024/gemastik/46_68x) | RE   | Flag Checker, VM, Modified Crypto Algorithm  | medium | 

### Gemastik 2023

| Name     | Category   | Tags | Difficulty | 

| -------- | ---------- | ---- | ---------- |

| [FCaaS](challenges/2023/gemastik/FCaaS)   | RE   | Flag Checker, Runtime ELF Generation  | easy-medium | 

## Past CTF Solution

| Year     | CTF Name     |

| -------- | ------------ |

| 2023 | utctf, nullcon (todo), kalmar (todo), acsc (todo), lactf, bi0sctf, irisctf |

| 2022 | nitectf (Partial Solution), final oscctf, uactf, aractf, dicectf, findit, imaginary, litctf, mchctf, oscctf, typhoon |

| 2021 | IJCTF, BtSCTF, CodefestCTF, PicoCTF, FoobarCTF, angstromCTF, BSidesCanberraCTF, RitsecCTF, DVCTF, vishwaCTF, [DarkConCTF](https://kos0ng.medium.com/reverse-engineering-darkcon-ctf-2021-a8060717b1e3), [BSidesDelhiCTF](https://kos0ng.medium.com/writeup-reverse-engineering-bsides-delhi-ctf-2020-8a3f8bc92fb) |

| 2020 | UIUCTF, AsisQuals, Defcon911, [FirstCTF](https://kos0ng.medium.com/write-up-first-challenge-2020-2e2ff284d590), Redpwn, Batpwn, [CastorsCTF](https://medium.com/@ret2ex/reverse-engineering-castors-ctf-2020-b80ce7a4670), [DeepCTF](https://kos0ng.medium.com/reverse-engineering-deep-ctf-2020-ac9e83aa266d), UNITYQualification, UTCTF, zer0pts |

| Lifetime | cryptopals |

## Unmanaged Solver

- [gist.github.com](http://gist.github.com/kos0ng)