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
human_server #ecdsa #nonce-reuse	Union 2021	24.34	Crypto	files wu 3
why_is_a_raven #isogeny #sidh #torsion-point-attack	Union 2021	24.34	Crypto	files wu 2
cr0wn_st3rling	Union 2021	24.34	Crypto	files
mordell_primes	Union 2021	24.34	Crypto	files
neoclassical	Union 2021	24.34	Crypto	files