| Date | User | Challenge | Score |
| parvesh | XOR Starter | 10 | |
| aboateng124 | Greatest Common Divisor | 15 | |
| Redteletubby | Favourite byte | 20 | |
| spinflipper31415 | Computing Public Values | 25 | |
| Redteletubby | XOR Properties | 15 | |
| mr_meowth | Great Snakes | 3 | |
| warx | ASCII | 5 | |
| Redteletubby | XOR Starter | 10 | |
| alchemist7 | Bytes and Big Integers | 10 | |
| Redteletubby | Bytes and Big Integers | 10 | |
| parvesh | Bytes and Big Integers | 10 | |
| warx | Great Snakes | 3 | |
| mr_meowth | Finding Flags | 2 | |
| warx | Finding Flags | 2 | |
| OmegaG613 | Favourite byte | 20 | |
| jmusic | ECB CBC WTF | 55 | |
| mofloppa | You either know, XOR you don't | 30 | |
| aadex | Confusion through Substitution | 25 | |
| OmegaG613 | XOR Properties | 15 | |
| mofloppa | Favourite byte | 20 | |
| mofloppa | XOR Properties | 15 | |
| mofloppa | XOR Starter | 10 | |
| mofloppa | Bytes and Big Integers | 10 | |
| Redteletubby | Base64 | 10 | |
| aadex | Round Keys | 20 | |
| OmegaG613 | XOR Starter | 10 | |
| Redteletubby | Hex | 5 | |
| mofloppa | Base64 | 10 | |
| aadex | Structure of AES | 15 | |
| alpha_zer000 | RSA Decryption | 20 | |
| mofloppa | Hex | 5 | |
| Redteletubby | ASCII | 5 | |
| requin | Parameter Injection | 60 | |
| Alex299 | ASCII | 5 | |
| zzinc | Finding Flags | 2 | |
| mofloppa | ASCII | 5 | |
| OmegaG613 | Bytes and Big Integers | 10 | |
| Asterix22 | Diffusion through Permutation | 30 | |
| pacillians | Modes of Operation Starter | 15 | |
| alpha_zer000 | Private Keys | 20 | |
| quangntenemy | Static Client 2 | 120 | |
| Redteletubby | Great Snakes | 3 | |
| OmegaG613 | Base64 | 10 | |
| Redteletubby | Finding Flags | 2 | |
| raihri | Network Attacks | 5 | |
| 4thCORSman | Quadratic Residues | 25 | |
| noursalem261 | Hex | 5 | |
| noursalem261 | ASCII | 5 | |
| raihri | Great Snakes | 3 | |
| QWXXHSX123 | Confusion through Substitution | 25 |
You are now level Current level