| Date | User | Challenge | Score |
| phebsv | Monoprime | 30 | |
| phebsv | Factoring | 15 | |
| Lavi | Favourite byte | 20 | |
| snyagka | Quadratic Residues | 25 | |
| allowu | Deriving Symmetric Keys | 40 | |
| M0xX | Infinite Descent | 50 | |
| phebsv | RSA Signatures | 25 | |
| SylvainOdhiambo | Bringing It All Together | 50 | |
| mariotronix | Bytes and Big Integers | 10 | |
| phebsv | Inferius Prime | 30 | |
| SylvainOdhiambo | Diffusion through Permutation | 30 | |
| SylvainOdhiambo | Confusion through Substitution | 25 | |
| Lavi | XOR Properties | 15 | |
| gagas | XOR Starter | 10 | |
| SylvainOdhiambo | Round Keys | 20 | |
| Despair09 | Saying Hello | 20 | |
| SylvainOdhiambo | Structure of AES | 15 | |
| sdigs | XOR Properties | 15 | |
| Lavi | XOR Starter | 10 | |
| SylvainOdhiambo | Resisting Bruteforce | 10 | |
| allowu | Computing Shared Secrets | 30 | |
| hwam | Token Appreciation | 5 | |
| mariotronix | Base64 | 10 | |
| SylvainOdhiambo | Keyed Permutations | 5 | |
| gagas | Bytes and Big Integers | 10 | |
| mariotronix | Hex | 5 | |
| allowu | Computing Public Values | 25 | |
| KrunkerIO | Bytes and Big Integers | 10 | |
| mariotronix | ASCII | 5 | |
| SylvainOdhiambo | You either know, XOR you don't | 30 | |
| mariotronix | Great Snakes | 3 | |
| gagas | Base64 | 10 | |
| gagas | Hex | 5 | |
| hngtr969 | Square Eyes | 35 | |
| gn2529 | XOR Properties | 15 | |
| hngtr969 | Monoprime | 30 | |
| UNKNOWNguy24007 | Finding Flags | 2 | |
| gagas | ASCII | 5 | |
| DaBot | RSA Decryption | 20 | |
| lucky123 | ECB Oracle | 60 | |
| DaBot | Private Keys | 20 | |
| DaBot | Euler's Totient | 20 | |
| hngtr969 | Inferius Prime | 30 | |
| DaBot | Public Keys | 15 | |
| mohamed1012 | Bytes and Big Integers | 10 | |
| DaBot | Modular Exponentiation | 10 | |
| gagas | Great Snakes | 3 | |
| fenzmarimari | Base64 | 10 | |
| mariotronix | Finding Flags | 2 | |
| hayitxon | Great Snakes | 3 |
You are now level Current level