| Date | User | Challenge | Score |
| S0laReX | Base64 | 10 | |
| magallan | Finding Flags | 2 | |
| hellooooowww | Authentification 1 (Breizh CTF) | 0 | |
| hellooooowww | U-turn (Breizh CTF) | 0 | |
| laneuhh | You either know, XOR you don't | 30 | |
| laneuhh | Favourite byte | 20 | |
| regne | Confusion through Substitution | 25 | |
| laneuhh | XOR Properties | 15 | |
| laneuhh | XOR Starter | 10 | |
| containedreality | Base64 | 10 | |
| containedreality | Hex | 5 | |
| containedreality | ASCII | 5 | |
| containedreality | Great Snakes | 3 | |
| containedreality | Finding Flags | 2 | |
| laneuhh | Bytes and Big Integers | 10 | |
| Foul | Adrien's Signs | 80 | |
| bnroys | You either know, XOR you don't | 30 | |
| bnroys | Favourite byte | 20 | |
| FJRODR | Bytes and Big Integers | 10 | |
| bnroys | XOR Properties | 15 | |
| bnroys | XOR Starter | 10 | |
| FJRODR | Base64 | 10 | |
| bnroys | Bytes and Big Integers | 10 | |
| bnroys | Base64 | 10 | |
| avm | U-turn (Breizh CTF) | 0 | |
| bnroys | Hex | 5 | |
| bnroys | ASCII | 5 | |
| bnroys | Great Snakes | 3 | |
| liuyun | Quadratic Residues | 25 | |
| bnroys | Finding Flags | 2 | |
| fernandoamp | ASCII | 5 | |
| fernandoamp | Great Snakes | 3 | |
| fernandoamp | Finding Flags | 2 | |
| liuyun | Modular Inverting | 25 | |
| iceRhonn | You either know, XOR you don't | 30 | |
| iceRhonn | Favourite byte | 20 | |
| liuyun | Modular Arithmetic 2 | 20 | |
| gotham_gazette | Base64 | 10 | |
| gotham_gazette | Hex | 5 | |
| liuyun | Modular Arithmetic 1 | 20 | |
| iceRhonn | XOR Properties | 15 | |
| gotham_gazette | ASCII | 5 | |
| StivenPaul | Finding Flags | 2 | |
| gotham_gazette | Great Snakes | 3 | |
| mboh2 | Signing Server | 60 | |
| gotham_gazette | Finding Flags | 2 | |
| iceRhonn | XOR Starter | 10 | |
| regne | Round Keys | 20 | |
| iceRhonn | Bytes and Big Integers | 10 | |
| ei15951 | Encoding Challenge | 40 |
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