| Date | User | Challenge | Score |
| dasa | Bytes and Big Integers | 10 | |
| sedtx | Parameter Injection | 60 | |
| AlexCID | Lemur XOR | 40 | |
| SSero | Great Snakes | 3 | |
| SSero | Finding Flags | 2 | |
| Victoire | Great Snakes | 3 | |
| sedtx | Deriving Symmetric Keys | 40 | |
| Maram_AYER | Favourite byte | 20 | |
| punisher1213 | Favourite byte | 20 | |
| sedtx | Computing Shared Secrets | 30 | |
| sedtx | Computing Public Values | 25 | |
| sedtx | Generators of Groups | 20 | |
| sedtx | Working with Fields | 10 | |
| dasa | Base64 | 10 | |
| sedtx | Modulus Inutilis | 50 | |
| sedtx | Salty | 20 | |
| sedtx | Manyprime | 40 | |
| uxtoor77 | Favourite byte | 20 | |
| Victoire | Finding Flags | 2 | |
| kalixtro | Favourite byte | 20 | |
| cyberdark | Favourite byte | 20 | |
| beheaded | ASCII | 5 | |
| Maram_AYER | XOR Properties | 15 | |
| uxtoor77 | XOR Starter | 10 | |
| sedtx | Monoprime | 30 | |
| Cerades | Smooth Criminal | 60 | |
| sedtx | Factoring | 15 | |
| beheaded | Great Snakes | 3 | |
| beheaded | Finding Flags | 2 | |
| sedtx | RSA Signatures | 25 | |
| punisher1213 | XOR Properties | 15 | |
| FJRODR | XOR Starter | 10 | |
| Maram_AYER | XOR Starter | 10 | |
| sedtx | RSA Decryption | 20 | |
| sedtx | Private Keys | 20 | |
| sedtx | Euler's Totient | 20 | |
| sedtx | Public Keys | 15 | |
| sedtx | Modular Exponentiation | 10 | |
| hmaguilaro | XOR Properties | 15 | |
| sedtx | Bean Counter | 60 | |
| hmaguilaro | XOR Starter | 10 | |
| sedtx | Symmetry | 50 | |
| sedtx | Flipping Cookie | 60 | |
| Al3xHK | XOR Starter | 10 | |
| sedtx | ECB CBC WTF | 55 | |
| Cerades | Montgomery's Ladder | 40 | |
| sedtx | ECB Oracle | 60 | |
| punisher1213 | XOR Starter | 10 | |
| Cerades | Efficient Exchange | 50 | |
| Cerades | Curves and Logs | 40 |
You are now level Current level