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
ELWE	CyKor 2025	–	Crypto	files
I_will_send_it_using_only_symbols.	CyKor 2025	–	Crypto	files
I_will_send_it_using_only_symbols._ex	CyKor 2025	–	Crypto	files
Jerrys_gift	CyKor 2025	–	Crypto	files
Rock_Scissors_Paper	CyKor 2025	–	Crypto	files
x2=-1	CyKor 2025	–	Crypto	files