| Date | User | Challenge | Score |
| 32Gz | Keyed Permutations | 5 | |
| seungjae2023 | Passwords as Keys | 50 | |
| randomusername_0 | Bean Counter | 60 | |
| mxhugs | Great Snakes | 3 | |
| mxhugs | Finding Flags | 2 | |
| jinseo | Structure of AES | 15 | |
| seungjae2023 | Modes of Operation Starter | 15 | |
| Honggg1020 | Bringing It All Together | 50 | |
| Mellivora | Round Keys | 20 | |
| jinseo | Resisting Bruteforce | 10 | |
| kmark | Chinese Remainder Theorem | 40 | |
| jinseo | Keyed Permutations | 5 | |
| Hong5489 | Find the Lattice | 100 | |
| Honggg1020 | Diffusion through Permutation | 30 | |
| kaleidooa | Passwords as Keys | 50 | |
| smclara2005 | Symmetry | 50 | |
| iecsarayji | ASCII | 5 | |
| iecsarayji | Great Snakes | 3 | |
| junho | Flipping Cookie | 60 | |
| titoBR | Greatest Common Divisor | 15 | |
| iecsarayji | Finding Flags | 2 | |
| khxjn | ECB Oracle | 60 | |
| smclara2005 | Lazy CBC | 60 | |
| junho | ECB Oracle | 60 | |
| Laniakea24 | Modes of Operation Starter | 15 | |
| Alee | Passwords as Keys | 50 | |
| Alee | Modes of Operation Starter | 15 | |
| Alee | Bringing It All Together | 50 | |
| junho | ECB CBC WTF | 55 | |
| Alee | Diffusion through Permutation | 30 | |
| Alee | Confusion through Substitution | 25 | |
| kay240208 | Greatest Common Divisor | 15 | |
| Alee | Round Keys | 20 | |
| Alee | Structure of AES | 15 | |
| Alee | Resisting Bruteforce | 10 | |
| Alee | Keyed Permutations | 5 | |
| Alee | Modular Binomials | 80 | |
| kay240208 | Network Attacks | 5 | |
| chrisfox | You either know, XOR you don't | 30 | |
| Alee | Adrien's Signs | 80 | |
| Nunya777 | XOR Properties | 15 | |
| Alee | Chinese Remainder Theorem | 40 | |
| Alee | Modular Square Root | 35 | |
| Alee | Legendre Symbol | 35 | |
| Alee | Quadratic Residues | 25 | |
| Alee | Modular Inverting | 25 | |
| Alee | Modular Arithmetic 2 | 20 | |
| Laniakea24 | Bringing It All Together | 50 | |
| l5chiin | Hex | 5 | |
| Ronny0115ulop | You either know, XOR you don't | 30 |
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