| Date | User | Challenge | Score |
| jamesss2056 | ZKP Introduction | 5 | |
| theheff | Favourite byte | 20 | |
| storylord | Bytes and Big Integers | 10 | |
| Quytiunhm | Adrien's Signs | 80 | |
| storylord | Base64 | 10 | |
| storylord | Hex | 5 | |
| HumairaNuzhath | Base64 | 10 | |
| marhan | RSA Decryption | 20 | |
| Rv10 | Extended GCD | 20 | |
| marhan | Private Keys | 20 | |
| khanyz | RSA Decryption | 20 | |
| marhan | Euler's Totient | 20 | |
| marhan | Public Keys | 15 | |
| w1ldc4rd | Finding Flags | 2 | |
| AgungSaputra | RSA Decryption | 20 | |
| AgungSaputra | Private Keys | 20 | |
| AgungSaputra | Euler's Totient | 20 | |
| marhan | Modular Exponentiation | 10 | |
| AgungSaputra | Public Keys | 15 | |
| Crypdrew | Bytes and Big Integers | 10 | |
| Abdullah5565 | Authentification 2 (Breizh CTF) | 0 | |
| marhan | Legendre Symbol | 35 | |
| rshi07 | Modular Arithmetic 2 | 20 | |
| Miguel_ACN29 | ECB CBC WTF | 55 | |
| wazza | Base64 | 10 | |
| amari | Modes of Operation Starter | 15 | |
| HumairaNuzhath | Hex | 5 | |
| wazza | Hex | 5 | |
| Crypdrew | Base64 | 10 | |
| AgungSaputra | Modular Exponentiation | 10 | |
| marhan | Quadratic Residues | 25 | |
| marhan | Modular Inverting | 25 | |
| rshi07 | Modular Arithmetic 1 | 20 | |
| marhan | Modular Arithmetic 2 | 20 | |
| Miguel_ACN29 | ECB Oracle | 60 | |
| Crypdrew | Hex | 5 | |
| Crypdrew | ASCII | 5 | |
| marhan | Modular Arithmetic 1 | 20 | |
| wazza | ASCII | 5 | |
| Ruro | Favourite byte | 20 | |
| amari | Bringing It All Together | 50 | |
| Miguel_ACN29 | Passwords as Keys | 50 | |
| yehuda2233 | Privacy-Enhanced Mail? | 25 | |
| marhan | Extended GCD | 20 | |
| wazza | Great Snakes | 3 | |
| rshi07 | Extended GCD | 20 | |
| AgungSaputra | Finding Flags | 2 | |
| twosixtech | Favourite byte | 20 | |
| Miguel_ACN29 | Modes of Operation Starter | 15 | |
| khansanaila | RSA Decryption | 20 |
You are now level Current level