| Date | User | Challenge | Score |
| nauak | Base64 | 10 | |
| shuwen | Base64 | 10 | |
| nauak | ASCII | 5 | |
| shuwen | Hex | 5 | |
| ellieh | You either know, XOR you don't | 30 | |
| nauak | Great Snakes | 3 | |
| shuwen | ASCII | 5 | |
| nauak | Finding Flags | 2 | |
| shuwen | Great Snakes | 3 | |
| shuwen | Finding Flags | 2 | |
| ellieh | Favourite byte | 20 | |
| ellieh | XOR Properties | 15 | |
| silentRoar | Modular Arithmetic 2 | 20 | |
| ellieh | XOR Starter | 10 | |
| silentRoar | Modular Arithmetic 1 | 20 | |
| ellieh | Bytes and Big Integers | 10 | |
| LBN789 | ASCII | 5 | |
| ellieh | Base64 | 10 | |
| NotSkilled | Modular Inverting | 25 | |
| silentRoar | Extended GCD | 20 | |
| ellieh | Hex | 5 | |
| ellieh | ASCII | 5 | |
| NotSkilled | Modular Arithmetic 2 | 20 | |
| Saltensity | Efficient Exchange | 50 | |
| ellieh | Great Snakes | 3 | |
| Saltensity | Curves and Logs | 40 | |
| RestNPZ | Great Snakes | 3 | |
| NotSkilled | Modular Arithmetic 1 | 20 | |
| silentRoar | Greatest Common Divisor | 15 | |
| RestNPZ | Finding Flags | 2 | |
| NotSkilled | Extended GCD | 20 | |
| lelouch5920 | Modular Inverting | 25 | |
| Saltensity | Scalar Multiplication | 35 | |
| LBN789 | Great Snakes | 3 | |
| LBN789 | Finding Flags | 2 | |
| AllFine | Resisting Bruteforce | 10 | |
| haotrvn | JSON in JSON | 40 | |
| rphitheta | Modular Arithmetic 1 | 20 | |
| ellieh | Finding Flags | 2 | |
| Mimpi_basah | XOR Starter | 10 | |
| haotrvn | Secure Protocols | 5 | |
| thainguyen_13 | Modular Exponentiation | 10 | |
| Mimpi_basah | Bytes and Big Integers | 10 | |
| NKV005 | Base64 | 10 | |
| haotrvn | Network Attacks | 5 | |
| mrc0d3pl4fa1r | Bytes and Big Integers | 10 | |
| Winniepacaca | Base64 | 10 | |
| perezident | Legendre Symbol | 35 | |
| Winniepacaca | Hex | 5 | |
| Winniepacaca | ASCII | 5 |
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