| Date | User | Challenge | Score |
| 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 | |
| yousfi | ASCII | 5 | |
| piccolo1707 | Great Snakes | 3 | |
| Thunderstorm_289 | Bytes and Big Integers | 10 | |
| Memory | XOR Properties | 15 | |
| piccolo1707 | Finding Flags | 2 | |
| dwaeji | Bringing It All Together | 50 | |
| likeastar614 | ASCII | 5 | |
| kaiserx | Point Negation | 10 | |
| likeastar614 | Great Snakes | 3 | |
| Felk0 | Extended GCD | 20 | |
| yousfi | Great Snakes | 3 | |
| yousfi | Finding Flags | 2 | |
| nedz | Micro Transmissions | 120 | |
| rama2130 | Deriving Symmetric Keys | 40 | |
| kaiserx | Background Reading | 5 | |
| zerodaygym | Modular Inverting | 25 | |
| Cyryz | Bytes and Big Integers | 10 | |
| VISAS_STARFROST | Flipping Cookie | 60 | |
| Amat2s | Base64 | 10 | |
| 0xAlphaDark | Base64 | 10 | |
| Xtrimi | Transparency | 50 | |
| iamsaleh846 | Bytes and Big Integers | 10 | |
| eubdq | Lemur XOR | 40 | |
| Xtrimi | SSH Keys | 35 | |
| Cyryz | Base64 | 10 |
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