| Date | User | Challenge | Score |
| Juliet | Resisting Bruteforce | 10 | |
| Juliet | Keyed Permutations | 5 | |
| jmbote | Modes of Operation Starter | 15 | |
| shynnevilla | What's a Lattice? | 40 | |
| jmbote | Bringing It All Together | 50 | |
| Marvin_cheruiyot | Chinese Remainder Theorem | 40 | |
| jmbote | Diffusion through Permutation | 30 | |
| Marvin_cheruiyot | Modular Square Root | 35 | |
| dredre21 | Symmetry | 50 | |
| Marvin_cheruiyot | Legendre Symbol | 35 | |
| 156792 | Round Keys | 20 | |
| shynnevilla | Gram Schmidt | 30 | |
| 156792 | Structure of AES | 15 | |
| phat1911 | Exceptional Curves | 100 | |
| 156792 | Resisting Bruteforce | 10 | |
| shynnevilla | Size and Basis | 15 | |
| 156792 | Keyed Permutations | 5 | |
| Caleb_kariuki | Structure of AES | 15 | |
| jmbote | Confusion through Substitution | 25 | |
| jmbote | Round Keys | 20 | |
| jmbote | Structure of AES | 15 | |
| Ali_Omar | ECB Oracle | 60 | |
| shynnevilla | Vectors | 10 | |
| jmbote | Resisting Bruteforce | 10 | |
| jmbote | Keyed Permutations | 5 | |
| qwra | Lemur XOR | 40 | |
| kikaraichan | XOR Properties | 15 | |
| Marvin_cheruiyot | Quadratic Residues | 25 | |
| Caleb_kariuki | Resisting Bruteforce | 10 | |
| Ali_Omar | Passwords as Keys | 50 | |
| dredre21 | Flipping Cookie | 60 | |
| Ali_Omar | Modes of Operation Starter | 15 | |
| Caleb_kariuki | Keyed Permutations | 5 | |
| Ali_Omar | Bringing It All Together | 50 | |
| Ali_Omar | Diffusion through Permutation | 30 | |
| Ali_Omar | Confusion through Substitution | 25 | |
| fireicegun | Gaussian Reduction | 50 | |
| Ali_Omar | Round Keys | 20 | |
| trav | Base64 | 10 | |
| Ali_Omar | Structure of AES | 15 | |
| trav | Hex | 5 | |
| moranqy | Modular Inverting | 25 | |
| Marvin_cheruiyot | Modular Inverting | 25 | |
| dwg_cq | Finding Flags | 2 | |
| trav | ASCII | 5 | |
| Kimuruae7 | ECB Oracle | 60 | |
| Benvictor | ECB Oracle | 60 | |
| Benvictor | Passwords as Keys | 50 | |
| Marvin_cheruiyot | Modular Arithmetic 2 | 20 | |
| Benvictor | Modes of Operation Starter | 15 |
You are now level Current level