🔐 Master Cryptographic Challenges

Solve puzzles using cryptographic techniques ranging from classical ciphers to advanced logic puzzles. Unlock rewards and climb the leaderboards.

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Intermediate

🕵️ Vigenère Cipher

Decrypt this message using the Vigenère cipher method. The key requires calculating the prime factorization of a large number.

Ciphertext: XWSSK MKX QEXGTU!
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Easy

🔄 Caesar Shift

Rotate the alphabet to decode this simple substitution cipher. Try all 26 possible shifts!

Ciphertext: KHOOR ZRUOG!
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Hard

🧠 RSA Decryption

Use the RSA algorithm to decrypt this modern cryptographic challenge. Requires factoring large primes and modular arithmetic.

Encrypted: 43581274582365938271
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🏆 Top Challenge Solvers

Rank Player Challenges Solved Score
1 CipherQueen 12/15 543 pts
2 BinaryBrain 10/15 478 pts
3 HexHacker 9/15 412 pts
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