Challenges

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

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

Year

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CTF

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Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
Jumprope #xor-keystream	ImaginaryCTF 2021	–	Reverse	files wu 2
TonyAndJames #python-mersenne-twister #seed-recovery #xor-keystream	darkCON 2021	24.06	Crypto	files wu 3
flagprinter #reversing #base3-digit-sum #xor-keystream	CyberSpace 2024	24.83	Crypto	files wu 2