| Date | User | Challenge | Score |
| Mwijukye_Chief_C | Confusion through Substitution | 25 | |
| Mwijukye_Chief_C | Round Keys | 20 | |
| Mwijukye_Chief_C | Structure of AES | 15 | |
| 6lackPapakh | Favourite byte | 20 | |
| Mwijukye_Chief_C | Resisting Bruteforce | 10 | |
| Mwijukye_Chief_C | Keyed Permutations | 5 | |
| smotron | Great Snakes | 3 | |
| smotron | Finding Flags | 2 | |
| aanaka | Finding Flags | 2 | |
| 6lackPapakh | XOR Properties | 15 | |
| icancount1245 | Network Attacks | 5 | |
| 6lackPapakh | XOR Starter | 10 | |
| 191917 | Diffusion through Permutation | 30 | |
| LinkZelda | Passwords as Keys | 50 | |
| 6lackPapakh | Bytes and Big Integers | 10 | |
| Blank12 | Greatest Common Divisor | 15 | |
| 191917 | Confusion through Substitution | 25 | |
| 191917 | Round Keys | 20 | |
| 191917 | Structure of AES | 15 | |
| 6lackPapakh | Base64 | 10 | |
| 191917 | Resisting Bruteforce | 10 | |
| 191917 | Keyed Permutations | 5 | |
| 6lackPapakh | Hex | 5 | |
| 6lackPapakh | ASCII | 5 | |
| nerdarcueid | Great Snakes | 3 | |
| nerdarcueid | Finding Flags | 2 | |
| aless | Base64 | 10 | |
| KaitlynN | Network Attacks | 5 | |
| 6lackPapakh | Great Snakes | 3 | |
| 6lackPapakh | Finding Flags | 2 | |
| aless | Hex | 5 | |
| Manohar | Hex | 5 | |
| aless | ASCII | 5 | |
| gunadeep | ASCII | 5 | |
| gunadeep | Great Snakes | 3 | |
| ToastSandwich | Finding Flags | 2 | |
| aless | Great Snakes | 3 | |
| aless | Finding Flags | 2 | |
| aless | Greatest Common Divisor | 15 | |
| gunadeep | Finding Flags | 2 | |
| nuts727 | Legendre Symbol | 35 | |
| hienthao123 | Smooth Criminal | 60 | |
| Riyas | Favourite byte | 20 | |
| KowalskiVan | Static Client 2 | 120 | |
| Riyas | XOR Properties | 15 | |
| hienthao123 | Montgomery's Ladder | 40 | |
| WhimsicalNarwhal | Greatest Common Divisor | 15 | |
| Jzy_258 | XOR Starter | 10 | |
| VxRabbit | Export-grade | 100 | |
| Jzy_258 | Bytes and Big Integers | 10 |
You are now level Current level