| Date | User | Challenge | Score |
| m07med | Finding Flags | 2 | |
| Samigo | Base64 | 10 | |
| clemensGooooo | Where's the Supersingular Curve | 25 | |
| andremelo | You either know, XOR you don't | 30 | |
| UrSourceCode | Greatest Common Divisor | 15 | |
| em99 | Favourite byte | 20 | |
| qznef404 | Great Snakes | 3 | |
| andremelo | Favourite byte | 20 | |
| MarkAnton00 | Bytes and Big Integers | 10 | |
| Merci_b | SSH Keys | 35 | |
| MarkAnton00 | Base64 | 10 | |
| sp1n0z4 | Encoding Challenge | 40 | |
| em99 | XOR Properties | 15 | |
| sonowxz | Network Attacks | 5 | |
| KintaZi | Adrien's Signs | 80 | |
| RotaJakiro | Bringing It All Together | 50 | |
| Acja | Bytes and Big Integers | 10 | |
| C4mpoJUL | The Matrix Reloaded | 100 | |
| Stefanie42 | The Matrix Reloaded | 100 | |
| Ind3xO44 | XOR Properties | 15 | |
| C4mpoJUL | The Matrix | 75 | |
| C4mpoJUL | Script Kiddie | 70 | |
| Samigo | Hex | 5 | |
| Stefanie42 | The Matrix | 75 | |
| hngtr969 | Diffusion through Permutation | 30 | |
| m4cr0 | Chinese Remainder Theorem | 40 | |
| MidoS3d | Decrypting TLS 1.3 | 35 | |
| m4cr0 | Modular Square Root | 35 | |
| sonowxz | ASCII | 5 | |
| Stefanie42 | Script Kiddie | 70 | |
| C4mpoJUL | Factoring | 15 | |
| C4mpoJUL | RSA Signatures | 25 | |
| C4mpoJUL | RSA Decryption | 20 | |
| C4mpoJUL | Private Keys | 20 | |
| C4mpoJUL | Euler's Totient | 20 | |
| C4mpoJUL | Public Keys | 15 | |
| C4mpoJUL | Modular Exponentiation | 10 | |
| m4cr0 | Legendre Symbol | 35 | |
| Samigo | ASCII | 5 | |
| RotaJakiro | Diffusion through Permutation | 30 | |
| Barath_Nivash_R | ASCII | 5 | |
| C4mpoJUL | Additive | 70 | |
| em99 | XOR Starter | 10 | |
| sonowxz | Great Snakes | 3 | |
| C4mpoJUL | Export-grade | 100 | |
| sonowxz | Finding Flags | 2 | |
| qznef404 | Finding Flags | 2 | |
| C4mpoJUL | Legendre Symbol | 35 | |
| Stefanie42 | ECB CBC WTF | 55 | |
| Stefanie42 | Passwords as Keys | 50 |
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