Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

–

Higher weight ≈ harder, more prestigious event.

Year

–

CTF

Country

Must have Source / Docker Writeup

Sort

Reset

Challenge	CTF	Weight	Category	Has
Blue_Office #lcg-keystream #seed-bruteforce #known-plaintext	Crypto 2023	59.60	Misc	files wu 1
import_numpy_as_MT #numpy-mt19937 #seed-bruteforce #aes-cbc	Zh3r0 2021	–	Crypto	files src wu 1
signme #rsa #signature-forgery #weak-prng #seed-bruteforce	zer0pts 2021	24.56	Crypto	files wu 1