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🗃️ HashVault CTF Archive

Welcome to the HashVault CTF Archive, the official competition/challenge vault maintained by the HashVault Cybersecurity Club at BNMIT.
This archive serves as a permanent repository of CTF challenges attempted, solved, created, hosted, or contributed by the HashVault team.

📌 What is the CTF Archive?

The HashVault CTF Archive is a structured collection of cybersecurity challenges from various events hosted or participated by the HashVault Team.
It includes problems from categories like:

  • 🔐 Cryptography
  • 🧬 Reverse Engineering
  • 🛠️ PWN (Binary Exploitation)
  • 🌐 Web Security
  • 🔍 Digital Forensics
  • 🖼️ Steganography
  • 🌍 OSINT
  • 🧠 Miscellaneous

Each challenge includes a description, file(s), flag format, and optional writeups or walkthroughs.

Warning

NOTE: It is strict Operation Policy to not include the final Flags in any of the write-ups posted on the HashVault CTF Archive.

🧱 Structure of the CTF Archive

The archive is divided into:

  • Categories: Challenges are sorted by their domain for easier learning and practice.
  • Event Archives: Each CTF event participated or hosted has a dedicated page listing its challenges.
  • Writeups (optional): Linked walkthroughs or community submissions, are posted here.

Directory layout:

CTF Archive/
├── Event Name/     #Challenges from the mentioned event
│   ├── Categories/ #Per-category challenge breakdown
│   ├── Write-ups/  #Community write-ups for this event
│   └── Archive/    #Complete event archive (files/resources)
└── Write-ups/      #General space for all write-ups
    └── Categories/ #Write-ups grouped by challenge category

📖 How to Use the CTF Archive

  1. Navigate by Category:
    Browse challenges by category from the Categories section.

  2. Explore Past Events:
    Visit the Event Archive to see curated challenges released during previous CTFs.

  3. Attempt the Challenges:
    Download files, read the description, and test your skills.

  4. Submit Writeups (optional):
    Solved a challenge? contribute your solution with credit into our CTF Archive!.

🧩 CTFs in This Archive

Here are the events currently documented in the archive:

🗓️ Year 👑 Event Name 🔗 Link
2025 Shadow Apocalypse CTF 2025 View Challenges

More events will be added as we host or collaborate on new ones.

⚔️ Ready to test your skills? Head to the Categories page and start hacking!