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
Mersenne_Mayhem #continued-fractions	L3akCTF 2025	24.43	Crypto	files wu 1
DoRSA #rsa #wiener-attack #continued-fractions	Crypto 2021	36.00	Misc	files wu 1