| Date | User | Challenge | Score |
| villag | Extended GCD | 20 | |
| mitoni | XOR Starter | 10 | |
| rayanezaz | Diffusion through Permutation | 30 | |
| don_fun_fun | Base64 | 10 | |
| rayanezaz | Bringing It All Together | 50 | |
| rayanezaz | Confusion through Substitution | 25 | |
| don_fun_fun | Hex | 5 | |
| rayanezaz | Round Keys | 20 | |
| rayanezaz | Structure of AES | 15 | |
| Arsen123 | Lazy CBC | 60 | |
| Arsen123 | Flipping Cookie | 60 | |
| rayanezaz | Resisting Bruteforce | 10 | |
| rayanezaz | Keyed Permutations | 5 | |
| jrhyne | Null or Never | 100 | |
| iori | XOR Starter | 10 | |
| Thangg | Base64 | 10 | |
| frostzz | XOR Starter | 10 | |
| luqycharms | Base64 | 10 | |
| frostzz | Bytes and Big Integers | 10 | |
| mitoni | Bytes and Big Integers | 10 | |
| Thangg | Hex | 5 | |
| timmyshj | Extended GCD | 20 | |
| mitoni | Base64 | 10 | |
| luqycharms | Hex | 5 | |
| mitoni | Hex | 5 | |
| kkxxmyt | Modular Inverting | 25 | |
| kkxxmyt | Modular Arithmetic 2 | 20 | |
| mitoni | ASCII | 5 | |
| kkxxmyt | Modular Arithmetic 1 | 20 | |
| mitoni | Great Snakes | 3 | |
| kkxxmyt | Extended GCD | 20 | |
| mitoni | Finding Flags | 2 | |
| kkxxmyt | Greatest Common Divisor | 15 | |
| fentaohe | ECB CBC WTF | 55 | |
| tsumuu | ASCII | 5 | |
| tsumuu | Hex | 5 | |
| aditya_kumeowka | JSON in JSON | 40 | |
| mauri_dev14 | Legendre Symbol | 35 | |
| Thangg | ASCII | 5 | |
| iori | Bytes and Big Integers | 10 | |
| Hexerei | Modular Binomials | 80 | |
| Thangg | Great Snakes | 3 | |
| fentaohe | ECB Oracle | 60 | |
| don_fun_fun | ASCII | 5 | |
| xx33xx | ZKP Introduction | 5 | |
| Thangg | Finding Flags | 2 | |
| tsumuu | Great Snakes | 3 | |
| don_fun_fun | Great Snakes | 3 | |
| luqycharms | ASCII | 5 | |
| mauri_dev14 | Quadratic Residues | 25 |
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