| Date | User | Challenge | Score |
| Adeka228 | Confusion through Substitution | 25 | |
| Finniopolis | Great Snakes | 3 | |
| z3r0cool | Chinese Remainder Theorem | 40 | |
| PrisecaruTudor | Finding Flags | 2 | |
| Adeka228 | Round Keys | 20 | |
| dwaeji | Legendre Symbol | 35 | |
| zhasulan15243 | Resisting Bruteforce | 10 | |
| zhasulan15243 | Keyed Permutations | 5 | |
| F0rhex | Passwords as Keys | 50 | |
| kaiserx | Curves and Logs | 40 | |
| k7 | Background Reading | 5 | |
| Adeka228 | Structure of AES | 15 | |
| kiruthika | Favourite byte | 20 | |
| z3r0cool | Modular Square Root | 35 | |
| kiruthika | XOR Properties | 15 | |
| Citizen | You either know, XOR you don't | 30 | |
| dwaeji | Quadratic Residues | 25 | |
| kiruthika | XOR Starter | 10 | |
| Adeka228 | Resisting Bruteforce | 10 | |
| kiruthika | Bytes and Big Integers | 10 | |
| kiruthika | Base64 | 10 | |
| kiruthika | Hex | 5 | |
| kiruthika | ASCII | 5 | |
| Memory | Favourite byte | 20 | |
| kiruthika | Great Snakes | 3 | |
| Adeka228 | Keyed Permutations | 5 | |
| Onigiri2 | Endless Emails | 150 | |
| kiruthika | Finding Flags | 2 | |
| ninalty_dev | Round Keys | 20 | |
| adidona | Chinese Remainder Theorem | 40 | |
| kaiserx | Scalar Multiplication | 35 | |
| Thunderstorm_289 | You either know, XOR you don't | 30 | |
| F0rhex | Modes of Operation Starter | 15 | |
| sonath | XOR Properties | 15 | |
| Amat2s | XOR Starter | 10 | |
| nk0 | L-Win | 120 | |
| dwaeji | Modes of Operation Starter | 15 | |
| Thunderstorm_289 | Favourite byte | 20 | |
| Ikson | Pad Thai | 80 | |
| yousfi | Bytes and Big Integers | 10 | |
| Thunderstorm_289 | XOR Properties | 15 | |
| ninalty_dev | Structure of AES | 15 | |
| yousfi | Base64 | 10 | |
| Amat2s | Bytes and Big Integers | 10 | |
| yousfi | Hex | 5 | |
| cuongsl | Flipping Cookie | 60 | |
| nedz | Elliptic Nodes | 150 | |
| piccolo1707 | ASCII | 5 | |
| kaiserx | Point Addition | 30 | |
| Thunderstorm_289 | XOR Starter | 10 |
You are now level Current level