Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

–

Higher weight ≈ harder, more prestigious event.

Year

–

CTF

Country

Must have Source / Docker Writeup

Sort

Reset

Challenge	CTF	Weight	Category	Has
Hidden_in_Flash #i2c #eeprom #hardware	UMassCTF 2025	48.38	Hardware	files wu 1
A_Different_Type_of_Serial_Key #hardware #logic-analyzer #spi #i2c #xor-decode	CSAW 2021 Quals	20.54	Hardware	files wu 1