| Date | User | Challenge | Score |
| ramzoudz | ASCII | 5 | |
| junyouzin4209 | A Twisted Mind | 80 | |
| junyouzin4209 | Let's Prove It Again | 175 | |
| junyouzin4209 | Couples | 100 | |
| ramzoudz | Great Snakes | 3 | |
| THEX | Great Snakes | 3 | |
| anushkak7 | Finding Flags | 2 | |
| THEX | Finding Flags | 2 | |
| ramzoudz | Finding Flags | 2 | |
| starwalkinglty | Crossed Wires | 100 | |
| NitroN | Symmetry | 50 | |
| KK5559D | Extended GCD | 20 | |
| BlueAsFIre | Favourite byte | 20 | |
| healer | XOR Properties | 15 | |
| avm | The Matrix Reloaded | 100 | |
| gnomeright | Modular Inverting | 25 | |
| gnomeright | Modular Arithmetic 2 | 20 | |
| maskmovdqu | ECB CBC WTF | 55 | |
| adamsieso | Finding Flags | 2 | |
| toaru | Bytes and Big Integers | 10 | |
| healer | XOR Starter | 10 | |
| azhouye | Modular Arithmetic 2 | 20 | |
| BTN_1er_du_nom | Great Snakes | 3 | |
| hokoma | Finding Flags | 2 | |
| hokoma | Great Snakes | 3 | |
| nmhuei | Lazy CBC | 60 | |
| asdawqdas6 | Base64 | 10 | |
| mahu | Unencryptable | 125 | |
| gnomeright | Modular Arithmetic 1 | 20 | |
| asdawqdas6 | Hex | 5 | |
| healer | Bytes and Big Integers | 10 | |
| BTN_1er_du_nom | Finding Flags | 2 | |
| asdawqdas6 | ASCII | 5 | |
| toaru | Base64 | 10 | |
| kiramary | Bytes and Big Integers | 10 | |
| healer | Base64 | 10 | |
| asdawqdas6 | Great Snakes | 3 | |
| asdawqdas6 | Finding Flags | 2 | |
| testingworldfull | Deriving Symmetric Keys | 40 | |
| healer | Hex | 5 | |
| kiramary | Base64 | 10 | |
| testingworldfull | Computing Shared Secrets | 30 | |
| gnomeright | Extended GCD | 20 | |
| kiramary | Hex | 5 | |
| testingworldfull | Computing Public Values | 25 | |
| nada_abdelhaq | Lemur XOR | 40 | |
| nada_abdelhaq | Transparency | 50 | |
| nada_abdelhaq | SSH Keys | 35 | |
| nada_abdelhaq | CERTainly not | 30 | |
| nada_abdelhaq | Privacy-Enhanced Mail? | 25 |
You are now level Current level