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

Country

Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
nips #tea-cipher #upx-unpacking #mips	BCACTF 2025	–	Reverse	files wu 1
cup-of-tea #tea-cipher #reversing #ida	Defcamp 2022	–	Reverse	files wu 2