# Challenges
Choose a topic, check the difficulty and work towards your next solve.
Challenges marked Computer need a terminal or desktop tools.
53 challenges found | filtered
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Public Decryption Formula
Public Decryption Formula (PDF) is the ultimate hacker's dream cheat sheet! It's a top-secret recipe to unl...
Konia 3310
Win the game! Flag format: LearnIT{[a-z]*}
Glue-inator
Doofenshmirtz created a new evil device, the splitter-inator, you have to create a glue-inator and repair the picture.
Ducks Tossing Mini Frisbees
In a dimly lit alleyway, a secret agent known as "Whisper" swiftly handed you a note before disappearing into the nig...
Curse Hunter (2)
As you're running toward the location, a 27-year-old guy approaches you and starts talking. "Hi, my name is Ijichi...
Art
Can you find the secret behind this picture?
RSA 9
The Mysterious Revelation As the adventurers continued their exploration of the Cryptkeeper's Manor, they stumbled...
RSA 8
The Final Confrontation After enduring countless trials, the adventurers finally reached the heart of the mansion, w...
RSA 7
The Cursed Mirror Within the darkest depths of the mansion, they came upon a cursed mirror. It revealed eight dist...
RSA 6
The Labyrinthine Basement Beneath the mansion, they descended into a labyrinthine basement filled with hidden pass...
RSA 5
The Enchanted Library In the mansion's vast library, the adventurers found an ancient tome containing eight chapte...
RSA 4
The Phantom Melodies As nightfall descended, a haunting melody began to play throughout the mansion. The adventure...
RSA 3
The Spectral Statues To decipher the next clue, they had to investigate the mansion's garden, where they discovere...
RSA 2
The Whispers of the Wind Upon entering the mansion, the adventurers were met with ghostly whispers that echoed thr...
RSA 1
The Haunting Invitation As the wind howled through the twisted trees, the adventurers stumbled upon an old, decrep...
Decrypted
decrypted..?
Legacy FTP
A legacy FTP server has been discovered on a corporate network during a routine audit. The service appears to be runn...
Estimated time: 30 min
PyJail 1
You are trapped in a Python sandbox with restricted input. Escape the jail by executing code despite the blacklist.
Your Input, Your Rules
Your input, your rules. But whose memory is it anyway?
Tiny Buffer
A tiny buffer with big ambitions. What happens when it overflows?