| Date | User | Challenge | Score |
| VuiVe | Monoprime | 30 | |
| richard972 | Hex | 5 | |
| alisa | Confusion through Substitution | 25 | |
| TodaylunchRamen | RSA Signatures | 25 | |
| cpeters | Base64 | 10 | |
| yemingxinlu | Greatest Common Divisor | 15 | |
| Dgcg | Euler's Totient | 20 | |
| 8e1m4r | Quadratic Residues | 25 | |
| karoldus | Modular Square Root | 35 | |
| Dgcg | Public Keys | 15 | |
| yangcheng | Sign in Please (HKCERT CTF) | 0 | |
| Dgcg | Modular Exponentiation | 10 | |
| cpeters | Hex | 5 | |
| Ahmedkarami | ASCII | 5 | |
| VuiVe | Factoring | 15 | |
| wanttobethebest | Flipping Cookie | 60 | |
| yemingxinlu | You either know, XOR you don't | 30 | |
| cpeters | ASCII | 5 | |
| cpeters | Great Snakes | 3 | |
| yemingxinlu | Favourite byte | 20 | |
| Gaminglizzard | ASCII | 5 | |
| VuiVe | RSA Signatures | 25 | |
| cpeters | Finding Flags | 2 | |
| salahsa | Keyed Permutations | 5 | |
| sigoseUIA | Base64 | 10 | |
| mszypere | Broken RSA | 100 | |
| VAKAKIS | Computing Shared Secrets | 30 | |
| 8e1m4r | Modular Inverting | 25 | |
| adios | You either know, XOR you don't | 30 | |
| sigoseUIA | Hex | 5 | |
| ethancatepete | Modular Arithmetic 1 | 20 | |
| LeeWangWy | Finding Flags | 2 | |
| jonaswho | Finding Flags | 2 | |
| sigoseUIA | ASCII | 5 | |
| v4n_3ddy | Favourite byte | 20 | |
| parzi | Bytes and Big Integers | 10 | |
| ameliebru | Authenticated Handshake | 40 | |
| ethancatepete | Extended GCD | 20 | |
| Piotr271 | Quadratic Residues | 25 | |
| magic_hawk | Modular Square Root | 35 | |
| 8e1m4r | Modular Arithmetic 2 | 20 | |
| lithishkumar0x41 | Base64 | 10 | |
| Virshan | Adrien's Signs | 80 | |
| athinasiakantari | You either know, XOR you don't | 30 | |
| mszypere | Modular Binomials | 80 | |
| epliakoura | What's a Lattice? | 40 | |
| adios | Favourite byte | 20 | |
| lithishkumar0x41 | Hex | 5 | |
| epliakoura | Gram Schmidt | 30 | |
| NewZky | You either know, XOR you don't | 30 |
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