| Date | User | Challenge | Score |
| Kia | Diffusion through Permutation | 30 | |
| Kia | Confusion through Substitution | 25 | |
| LasangKyle | ECB Oracle | 60 | |
| Kia | Round Keys | 20 | |
| Kia | Structure of AES | 15 | |
| Kia | Resisting Bruteforce | 10 | |
| LasangKyle | Passwords as Keys | 50 | |
| LasangKyle | Modes of Operation Starter | 15 | |
| pilrymage | Generators of Groups | 20 | |
| Kia | Keyed Permutations | 5 | |
| LasangKyle | Bringing It All Together | 50 | |
| Eljoy | Modes of Operation Starter | 15 | |
| LasangKyle | Diffusion through Permutation | 30 | |
| LasangKyle | Confusion through Substitution | 25 | |
| LasangKyle | Round Keys | 20 | |
| LasangKyle | Structure of AES | 15 | |
| PAWOS | The Matrix Revolutions | 125 | |
| marcofireball84 | Curveball | 100 | |
| Connyollus | Flipping Cookie | 60 | |
| Connyollus | Bean Counter | 60 | |
| Connyollus | Symmetry | 50 | |
| Connyollus | ECB CBC WTF | 55 | |
| Connyollus | ECB Oracle | 60 | |
| Connyollus | Passwords as Keys | 50 | |
| Connyollus | Modes of Operation Starter | 15 | |
| Connyollus | Bringing It All Together | 50 | |
| Connyollus | Diffusion through Permutation | 30 | |
| Connyollus | Confusion through Substitution | 25 | |
| Connyollus | Round Keys | 20 | |
| Connyollus | Structure of AES | 15 | |
| Connyollus | Resisting Bruteforce | 10 | |
| Connyollus | Keyed Permutations | 5 | |
| Siwi | XOR Starter | 10 | |
| yu_00 | Hex | 5 | |
| dusiqi2 | XOR Starter | 10 | |
| jianchi998 | Hex | 5 | |
| mk00001 | Base64 | 10 | |
| lxznb | XOR Starter | 10 | |
| jianchi998 | ASCII | 5 | |
| zerosfajnk | Base64 | 10 | |
| yu_00 | ASCII | 5 | |
| 195luobo | Base64 | 10 | |
| mk00001 | Hex | 5 | |
| jianchi998 | Great Snakes | 3 | |
| trustme777 | Base64 | 10 | |
| hbsfjgzyxy | Base64 | 10 | |
| xinpianji | Base64 | 10 | |
| dusiqi2 | Bytes and Big Integers | 10 | |
| lizhi11 | Base64 | 10 | |
| zJQHAHA1 | ASCII | 5 |
You are now level Current level