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.

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Challenge	CTF	Weight	Category	Has
Morphing_Time #elgamal #malleability	UIUCTF 2023	–	Crypto	files src wu 2
janken_vs_yoshiking #elgamal #quadratic-residue #legendre-symbol	zer0pts 2021	24.56	Crypto	files wu 2