| Date | User | Challenge | Score |
| Hellen_Mutemi | Export-grade | 100 | |
| jasonbourne | RSA Signatures | 25 | |
| Adnan8869 | Export-grade | 100 | |
| ruuz | Moving Problems | 150 | |
| xxcz0124 | Modular Arithmetic 1 | 20 | |
| jasonbourne | RSA Decryption | 20 | |
| lirroyz | Favourite byte | 20 | |
| jasonbourne | Private Keys | 20 | |
| Sajida | Quadratic Residues | 25 | |
| jasonbourne | Euler's Totient | 20 | |
| jasonbourne | Public Keys | 15 | |
| Sajida | Modular Inverting | 25 | |
| Hellen_Mutemi | Parameter Injection | 60 | |
| Hellen_Mutemi | Deriving Symmetric Keys | 40 | |
| TirthBD | Prime and Prejudice | 200 | |
| Hellen_Mutemi | Computing Shared Secrets | 30 | |
| nimparker | Quadratic Residues | 25 | |
| jasonbourne | Modular Exponentiation | 10 | |
| Hellen_Mutemi | Computing Public Values | 25 | |
| Hellen_Mutemi | Generators of Groups | 20 | |
| Hellen_Mutemi | Working with Fields | 10 | |
| Sajida | Modular Arithmetic 2 | 20 | |
| Hellen_Mutemi | Modulus Inutilis | 50 | |
| DaltonM | Bringing It All Together | 50 | |
| jasonbourne | Gram Schmidt | 30 | |
| Hellen_Mutemi | Salty | 20 | |
| Rvsh0x | Modular Arithmetic 1 | 20 | |
| DaltonM | Diffusion through Permutation | 30 | |
| Sajida | Modular Arithmetic 1 | 20 | |
| Hellen_Mutemi | Manyprime | 40 | |
| Hellen_Mutemi | Monoprime | 30 | |
| DaltonM | Confusion through Substitution | 25 | |
| mamam | Round Keys | 20 | |
| Hellen_Mutemi | Factoring | 15 | |
| Hellen_Mutemi | RSA Signatures | 25 | |
| DaltonM | Round Keys | 20 | |
| Hellen_Mutemi | RSA Decryption | 20 | |
| Hellen_Mutemi | Private Keys | 20 | |
| Hellen_Mutemi | Euler's Totient | 20 | |
| reyanryy | Great Snakes | 3 | |
| Hellen_Mutemi | Public Keys | 15 | |
| Hellen_Mutemi | Modular Exponentiation | 10 | |
| kian_mohammadita | ECB Oracle | 60 | |
| reyanryy | Finding Flags | 2 | |
| Sajida | Extended GCD | 20 | |
| Yvandra | Great Snakes | 3 | |
| Moses10 | Export-grade | 100 | |
| Sajida | Greatest Common Divisor | 15 | |
| Moses10 | Parameter Injection | 60 | |
| miloud | Bytes and Big Integers | 10 |
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