Resources
CTFTime
CTFTime is the authoritative source of all CTF competitions, including event listing, team ranking, and a centralized writeup directory.
Tools
- Awesome CTF: List of CTF tools
- Day 18 Essential CTF Tools: List of CTF tools
- CyberChef: A swiss-army knife for data manipulation, including encoding / decoding, encryption / decryption, compression / decompression, and other ciphers and analyses
- PayloadsAllTheThings: “A list of useful payloads and bypass for Web Application Security and Pentest/CTF”
Forensics:
- stego-toolkit: A collection of steganography-related tools.
Activity-based Resources
These are good places to start looking for challenges.
General:
- OverTheWire wargames: Several hosted services that help you practice offensive security
- CTFLearn: Hosts many CTF challenges
- PicoCTF: CMU-hosted high school CTF, challenges are up to stay so good practice material
Crypto:
- CryptoPals: Hands-on introduction to cryptographic principles, including block / stream ciphers, randomness, Diffie-Hellman, RSA, and more
Binary-exploit / Reversing:
- Microcorruption: An embedded reverse-engineering challenge that involves breaking into a simulated embedded device
- Crackmes.one: Grab-bag of binary exploit challenges
- Pwnable.kr: Grab-bag of binary exploit challenges
Web:
- HackThisSite: Web vulnerability sandbox where you can put your web skills to the test
Reading-based Resources
Useful Courses
- CSCI 2021 - Machine Architecture and Organization
- CSCI 4061 - Intro to Operating Systems
- CSCI 4211 - Intro to Computer Networks
- CSCI 5271 - Intro to Computer Security
- MATH 5248 - Cryptology