Repository Index

CTF Writeups

Open Source Threat Intelligence Platform

• cti
• cybersecurity
• security
• intelligence

Non-custodial, encrypted file storage & sharing platform with Stellar payments and on-chain file notarization

• blockdag
• encryption
• file-storage
• freighter

A Boilerplate for deno RESTful apis

• deno
• rest-api
• oak
• mongodb

Cross-platform, open-source shellbag parser

An evidence-first research platform for observing and studying early signals in medical technology development.

• fda
• medical-devices
• openfda
• python

🔑 Paseto.NET, a Paseto (Platform-Agnostic Security Tokens) implementation for .NET

• paseto
• dotnet
• netstandard
• dotnet-core

A platform to develop, run and administer CTF competitions. This is the online echoCTF.RED platform source code

• ctf
• echoctf
• cybersecurity
• hacking

Open-source agentic security operations platform:

• agentic-security
• cyber-security
• cyber-threat-intelligence
• cybersecurity

Detect hidden files and text in images

• steganography
• ctf
• stego
• capture-the-flag

Straightforward HTTP session management

• session-management
• session
• http
• golang

Writeups of Capture The Flag Competitions

• ctf
• picoctf
• writeups
• glug

A flexible playground for Android CTF challenges.

• android
• ctf
• cybersecurity
• playground

A CTF framework to create, build, deploy and monitor challenges

• ctf-tools
• ctf-framework

NTFUZZ: Enabling Type-Aware Kernel Fuzzing on Windows with Static Binary Analysis (IEEE S&P '21)

• fuzzer
• fuzzing
• kernel-fuzzer
• windows-kernel

Run basic functions from stripped binaries cross platform

HEhub is a library for homomorphic encryption and its applications, and is part of the PrimiHub project.

• bgv
• ckks
• cryptography
• fhe

Writeups/solutions

• ctf-writeups
• ctf
• ctf-solutions

Web interface to explore Suricata EVE outputs

• attack-defense-ctf
• ctf
• network-monitor
• suricata

Authenticated encrypted API tokens (IETF XChaCha20-Poly1305 AEAD) for Golang

• golang
• tokens
• branca
• jwt

CTF in a box. Minimal setup required. (not production-ready yet)

HOTP/TOTP one time passwords on java phones (J2ME)

• hotp
• j2me
• j2me-platform
• one-time-pad

AI-powered platform for OSINT intelligence analysis. Features archive discovery with hypothesis-driven investigation, GLiNER entity extraction, Mapbox geospatial visualization, network analysis, and document processing. Built with FastAPI, Next.js, Weaviate, and DSPy.

• ai-agents
• document-processing
• dspy
• entity-extraction

Welcome to HackTheArch! A free open source scoring server for cyber Capture the Flag competitions!

• ctf-scoreboard
• ctf-framework
• ctf-platform
• ctf-events