| Date | User | Challenge | Score |
| GabesXan | Bytes and Big Integers | 10 | |
| mitsukyu | Finding Flags | 2 | |
| rogersst | XOR Properties | 15 | |
| clashadow | ASCII | 5 | |
| Zug22 | Hex | 5 | |
| auraman67 | Resisting Bruteforce | 10 | |
| PlumpLad391 | Diffusion through Permutation | 30 | |
| clashadow | Great Snakes | 3 | |
| PlumpLad391 | Confusion through Substitution | 25 | |
| Zug22 | ASCII | 5 | |
| ahmed1 | Modular Inverting | 25 | |
| GabesXan | Base64 | 10 | |
| PlumpLad391 | Round Keys | 20 | |
| Abstract | ECB CBC WTF | 55 | |
| auraman67 | Keyed Permutations | 5 | |
| PlumpLad391 | Structure of AES | 15 | |
| Zug22 | Great Snakes | 3 | |
| GabesXan | Hex | 5 | |
| clashadow | Finding Flags | 2 | |
| Darkphantom | Resisting Bruteforce | 10 | |
| GabesXan | ASCII | 5 | |
| GabesXan | Great Snakes | 3 | |
| Seventt | Deriving Symmetric Keys | 40 | |
| Zug22 | Finding Flags | 2 | |
| GabesXan | Finding Flags | 2 | |
| H4ck3rBl4ck | Chinese Remainder Theorem | 40 | |
| burmaLEI | Bringing It All Together | 50 | |
| ciw | Greatest Common Divisor | 15 | |
| 72dnj90 | Great Snakes | 3 | |
| Fahim_AF | Modular Arithmetic 1 | 20 | |
| 72dnj90 | Finding Flags | 2 | |
| Janarthanan | Quadratic Residues | 25 | |
| Darkphantom | Keyed Permutations | 5 | |
| burmaLEI | Diffusion through Permutation | 30 | |
| MichaelMcN | XOR Starter | 10 | |
| rogersst | XOR Starter | 10 | |
| burmaLEI | Confusion through Substitution | 25 | |
| IpFable | Bytes and Big Integers | 10 | |
| burmaLEI | Round Keys | 20 | |
| odysseus444 | Round Keys | 20 | |
| burmaLEI | Structure of AES | 15 | |
| AdorableSkeleton | Crossed Wires | 100 | |
| anna03 | Adrien's Signs | 80 | |
| burmaLEI | Resisting Bruteforce | 10 | |
| UGOTTHEBIGL | Hash Stuffing | 50 | |
| burmaLEI | Keyed Permutations | 5 | |
| IpFable | Base64 | 10 | |
| rogersst | Bytes and Big Integers | 10 | |
| burmaLEI | Transparency | 50 | |
| IpFable | Hex | 5 |
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