| Date | User | Challenge | Score |
| 82sela | Modular Exponentiation | 10 | |
| JesterKing | Adrien's Signs | 80 | |
| bluewinger | Favourite byte | 20 | |
| JesterKing | Chinese Remainder Theorem | 40 | |
| neartech | LWE Low Bits Message | 20 | |
| JesterKing | Modular Square Root | 35 | |
| JesterKing | Legendre Symbol | 35 | |
| ShOGuN | Greatest Common Divisor | 15 | |
| JesterKing | Quadratic Residues | 25 | |
| ShOGuN | You either know, XOR you don't | 30 | |
| JesterKing | Modular Inverting | 25 | |
| JesterKing | Modular Arithmetic 2 | 20 | |
| JesterKing | Modular Arithmetic 1 | 20 | |
| erickao | Modular Arithmetic 2 | 20 | |
| ShOGuN | Favourite byte | 20 | |
| JesterKing | Extended GCD | 20 | |
| JesterKing | Greatest Common Divisor | 15 | |
| JesterKing | You either know, XOR you don't | 30 | |
| JesterKing | Favourite byte | 20 | |
| ShOGuN | XOR Properties | 15 | |
| JesterKing | XOR Properties | 15 | |
| JesterKing | XOR Starter | 10 | |
| JesterKing | Bytes and Big Integers | 10 | |
| JesterKing | Base64 | 10 | |
| JesterKing | Hex | 5 | |
| JesterKing | ASCII | 5 | |
| JesterKing | Great Snakes | 3 | |
| ShOGuN | XOR Starter | 10 | |
| bluewinger | XOR Properties | 15 | |
| 82sela | Bytes and Big Integers | 10 | |
| ShOGuN | Bytes and Big Integers | 10 | |
| ShOGuN | Base64 | 10 | |
| ShOGuN | Hex | 5 | |
| 82sela | Base64 | 10 | |
| ShOGuN | ASCII | 5 | |
| 82sela | Hex | 5 | |
| neartech | LWE High Bits Message | 15 | |
| woodog | Extended GCD | 20 | |
| 82sela | ASCII | 5 | |
| MidoS3d | Merkle Trees | 25 | |
| ShOGuN | Great Snakes | 3 | |
| sakuya717 | ASCII | 5 | |
| ShOGuN | Finding Flags | 2 | |
| bluewinger | XOR Starter | 10 | |
| 82sela | Great Snakes | 3 | |
| RemyM74 | Great Snakes | 3 | |
| 82sela | Finding Flags | 2 | |
| RemyM74 | Finding Flags | 2 | |
| sakuya717 | Great Snakes | 3 | |
| KMA_SiriuS_ | ECB CBC WTF | 55 |
You are now level Current level