| Date | User | Challenge | Score |
| nmcrypto | Background Reading | 5 | |
| Virtopeanu | RSA Decryption | 20 | |
| liya | Extended GCD | 20 | |
| kkon | Lemur XOR | 40 | |
| baselsadi | Structure of AES | 15 | |
| Virtopeanu | Private Keys | 20 | |
| alsh3ath | You either know, XOR you don't | 30 | |
| ymoe3 | Modes of Operation Starter | 15 | |
| Virtopeanu | Euler's Totient | 20 | |
| hmmm | Great Snakes | 3 | |
| 0Drakos | Great Snakes | 3 | |
| Woodsman | Base64 | 10 | |
| hmmm | Finding Flags | 2 | |
| 0Drakos | Finding Flags | 2 | |
| Virtopeanu | Public Keys | 15 | |
| kkon | Quadratic Residues | 25 | |
| aviviv | Dancing Queen | 120 | |
| Virtopeanu | Modular Exponentiation | 10 | |
| mppl2409 | Symmetry | 50 | |
| shurayz | The Good, The Pad, The Ugly | 100 | |
| kiennvbak | Finding Flags | 2 | |
| ymoe3 | Bringing It All Together | 50 | |
| cosmasnwigbo | Finding Flags | 2 | |
| MahdiFdaos | Deriving Symmetric Keys | 40 | |
| PedroTricossi | Modular Binomials | 80 | |
| jeanchpt | Computing Public Values | 25 | |
| MahdiFdaos | Computing Shared Secrets | 30 | |
| jeanchpt | Generators of Groups | 20 | |
| DavidTruong | Logon Zero | 80 | |
| MahdiFdaos | Computing Public Values | 25 | |
| MahdiFdaos | Generators of Groups | 20 | |
| MahdiFdaos | Working with Fields | 10 | |
| Googo | Modular Square Root | 35 | |
| jeanchpt | Working with Fields | 10 | |
| antidote10 | Keyed Permutations | 5 | |
| huli07 | ECB Oracle | 60 | |
| RAHIM | Greatest Common Divisor | 15 | |
| PedroTricossi | Adrien's Signs | 80 | |
| heeheeheehar | The Matrix Reloaded | 100 | |
| jaeming | ZKP Introduction | 5 | |
| liya | Greatest Common Divisor | 15 | |
| ririelen | Modular Inverting | 25 | |
| jeanchpt | Modulus Inutilis | 50 | |
| heeheeheehar | The Matrix | 75 | |
| p23108 | Transparency | 50 | |
| alsh3ath | Favourite byte | 20 | |
| p23108 | SSH Keys | 35 | |
| snowlight | Modular Inverting | 25 | |
| heeheeheehar | Script Kiddie | 70 | |
| y0dam4n | Marin's Secrets | 50 |
You are now level Current level