| Date | User | Challenge | Score |
| afrdian | A Twisted Mind | 80 | |
| effy | Great Snakes | 3 | |
| najo | ASCII | 5 | |
| Fikhtengoltz | You either know, XOR you don't | 30 | |
| najo | Great Snakes | 3 | |
| effy | Finding Flags | 2 | |
| Mokero001 | Greatest Common Divisor | 15 | |
| whoiswhois | Moving Problems | 150 | |
| nancyaninidtia | You either know, XOR you don't | 30 | |
| xingchi | RSA Decryption | 20 | |
| MichYe | Favourite byte | 20 | |
| BlackyCTF | Micro Transmissions | 120 | |
| lucy54 | Decrypting TLS 1.2 | 30 | |
| Zaiyr0 | Great Snakes | 3 | |
| grizzzer | ProSign 3 | 100 | |
| DarkDragon_sec | You either know, XOR you don't | 30 | |
| hynxio | ECB Oracle | 60 | |
| Zaiyr0 | Finding Flags | 2 | |
| MichYe | XOR Properties | 15 | |
| lucy54 | Saying Hello | 20 | |
| SIddika | Base64 | 10 | |
| xingchi | Private Keys | 20 | |
| maxonixxx12 | Efficient Exchange | 50 | |
| maxonixxx12 | Curves and Logs | 40 | |
| najo | Finding Flags | 2 | |
| maxonixxx12 | Scalar Multiplication | 35 | |
| funday | Chinese Remainder Theorem | 40 | |
| neitoroxin | Quadratic Residues | 25 | |
| mrochu | Finding Flags | 2 | |
| maxonixxx12 | Point Addition | 30 | |
| ashey | Bytes and Big Integers | 10 | |
| xingchi | Euler's Totient | 20 | |
| neitoroxin | Modular Inverting | 25 | |
| maxonixxx12 | Point Negation | 10 | |
| maxonixxx12 | Background Reading | 5 | |
| neitoroxin | Modular Arithmetic 2 | 20 | |
| neitoroxin | Modular Arithmetic 1 | 20 | |
| maxonixxx12 | Export-grade | 100 | |
| MichYe | XOR Starter | 10 | |
| maxonixxx12 | Parameter Injection | 60 | |
| RakaWardana | Bringing It All Together | 50 | |
| RotaJakiro | ProSign 3 | 100 | |
| neitoroxin | Extended GCD | 20 | |
| maxonixxx12 | Deriving Symmetric Keys | 40 | |
| maxonixxx12 | Computing Shared Secrets | 30 | |
| maxonixxx12 | Computing Public Values | 25 | |
| maxonixxx12 | Generators of Groups | 20 | |
| HighestClimber | Modular Inverting | 25 | |
| HighestClimber | Modular Arithmetic 2 | 20 | |
| neitoroxin | Greatest Common Divisor | 15 |
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