Crackable
Numbers whisper. Hashes lie. Primes betray.
About Crackable
Welcome to Crackable — a dedicated cryptography challenge platform where you can master the science of secure communication through hands-on problem solving.
Explore challenges spanning the full spectrum of cryptography:
- Classical Ciphers
- Symmetric Encryption
- Public Key Cryptography
- Hash Functions & MACs
- Digital Signatures
- Cryptanalysis
Latest News
Crackable Is Live!
Jan 04, 2026Crackable is a cryptography-first CTF platform focused on understanding, not guesswork. Happy cracking!
Cryptography Guide Now Available
Jan 04, 2026We’ve published a crypto guide to help you master the fundamentals here at https://book.crackable.xyz
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