| Date | User | Challenge | Score |
| saint213 | Great Snakes | 3 | |
| saint213 | Finding Flags | 2 | |
| 505_Error | Base64 | 10 | |
| rfmph | Export-grade | 100 | |
| lam3rke | Base64 | 10 | |
| 505_Error | Hex | 5 | |
| THz | Infinite Descent | 50 | |
| lam3rke | Hex | 5 | |
| 505_Error | ASCII | 5 | |
| lam3rke | ASCII | 5 | |
| lam3rke | Great Snakes | 3 | |
| vr7xl | Round Keys | 20 | |
| lam3rke | Finding Flags | 2 | |
| carlos_mm | Transparency | 50 | |
| carlos_mm | SSH Keys | 35 | |
| carlos_mm | CERTainly not | 30 | |
| carlos_mm | Privacy-Enhanced Mail? | 25 | |
| carlos_mm | Modular Inverting | 25 | |
| carlos_mm | Modular Arithmetic 2 | 20 | |
| carlos_mm | Modular Arithmetic 1 | 20 | |
| carlos_mm | Extended GCD | 20 | |
| carlos_mm | Greatest Common Divisor | 15 | |
| carlos_mm | Lemur XOR | 40 | |
| carlos_mm | You either know, XOR you don't | 30 | |
| carlos_mm | Favourite byte | 20 | |
| carlos_mm | XOR Properties | 15 | |
| carlos_mm | XOR Starter | 10 | |
| carlos_mm | Encoding Challenge | 40 | |
| carlos_mm | Bytes and Big Integers | 10 | |
| dirtyDeedz | Bean Counter | 60 | |
| rajforlearn83 | Point Negation | 10 | |
| carlos_mm | Network Attacks | 5 | |
| vr7xl | Structure of AES | 15 | |
| MasterLJ | Broken RSA | 100 | |
| carlos_mm | Base64 | 10 | |
| carlos_mm | Hex | 5 | |
| minyawy | Round Keys | 20 | |
| carlos_mm | ASCII | 5 | |
| greenslime | Bytes and Big Integers | 10 | |
| greenslime | Base64 | 10 | |
| Juha | Extended GCD | 20 | |
| minyawy | Structure of AES | 15 | |
| greenslime | Hex | 5 | |
| vr7xl | Resisting Bruteforce | 10 | |
| Gustavo_Adolfo | You either know, XOR you don't | 30 | |
| Gustavo_Adolfo | Favourite byte | 20 | |
| MasterLJ | Modular Binomials | 80 | |
| Gustavo_Adolfo | XOR Properties | 15 | |
| greenslime | ASCII | 5 | |
| greenslime | Great Snakes | 3 |
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