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
I_Like_McDonalds #hash-length-extension-attack #mac-forgery	BackdoorCTF 2024	–	Crypto	files wu 1
TagSeries1 #ecb #mac-forgery	WolvCTF 2024	35.25	Crypto	files wu 2
RobustCBC #cbc-mac #mac-forgery #truncation-collision	SekaiCTF 2022	24.86	Crypto	files wu 1