| Date | User | Challenge | Score |
| Sajid14592 | Base64 | 10 | |
| greyninja | Base64 | 10 | |
| greyninja | Hex | 5 | |
| greyninja | ASCII | 5 | |
| Youmei295 | Symmetry | 50 | |
| greyninja | Great Snakes | 3 | |
| cyberoops | Finding Flags | 2 | |
| Sajid14592 | Hex | 5 | |
| greyninja | Finding Flags | 2 | |
| ecastilg | Resisting Bruteforce | 10 | |
| phongpt55 | Adrien's Signs | 80 | |
| Sajid14592 | ASCII | 5 | |
| Sajid14592 | Great Snakes | 3 | |
| Sajid14592 | Finding Flags | 2 | |
| nisuu | Adrien's Signs | 80 | |
| tuan074 | Greatest Common Divisor | 15 | |
| ecastilg | ASCII | 5 | |
| ecastilg | Great Snakes | 3 | |
| ecastilg | Finding Flags | 2 | |
| wanttobethebest | ECB CBC WTF | 55 | |
| Virshan | Favourite byte | 20 | |
| nisuu | Chinese Remainder Theorem | 40 | |
| NawafMaas | XOR Starter | 10 | |
| AsselM | Triple DES | 60 | |
| AsselM | Lazy CBC | 60 | |
| AsselM | Flipping Cookie | 60 | |
| AsselM | ECB Oracle | 60 | |
| AsselM | ECB CBC WTF | 55 | |
| AsselM | Passwords as Keys | 50 | |
| AsselM | Modes of Operation Starter | 15 | |
| AsselM | Bringing It All Together | 50 | |
| AsselM | Diffusion through Permutation | 30 | |
| AsselM | Confusion through Substitution | 25 | |
| AsselM | Round Keys | 20 | |
| AsselM | Structure of AES | 15 | |
| Keremet | Passwords as Keys | 50 | |
| Keremet | Modes of Operation Starter | 15 | |
| Keremet | Bringing It All Together | 50 | |
| Keremet | Round Keys | 20 | |
| Mariyam | ECB Oracle | 60 | |
| Mariyam | Passwords as Keys | 50 | |
| Mariyam | Modes of Operation Starter | 15 | |
| Mariyam | Bringing It All Together | 50 | |
| NawafMaas | Bytes and Big Integers | 10 | |
| Mariyam | Diffusion through Permutation | 30 | |
| Mariyam | Confusion through Substitution | 25 | |
| Mariyam | Round Keys | 20 | |
| pablo1325 | Finding Flags | 2 | |
| shianchin | Greatest Common Divisor | 15 | |
| dkoazw | Everything is Big | 70 |
You are now level Current level