| Date | User | Challenge | Score |
| MilanP06 | Legendre Symbol | 35 | |
| krishramani27 | Passwords as Keys | 50 | |
| benedictst | Factoring | 15 | |
| Sixmix10 | You either know, XOR you don't | 30 | |
| jarvy5 | Monoprime | 30 | |
| drzejus | JWT Secrets | 25 | |
| vikaran | Base64 | 10 | |
| jarvy5 | Factoring | 15 | |
| MilanP06 | Quadratic Residues | 25 | |
| krishramani27 | Modes of Operation Starter | 15 | |
| joy0x01 | XOR Properties | 15 | |
| MilanP06 | Modular Inverting | 25 | |
| NaLnO | Great Snakes | 3 | |
| manuel_racle | Lemur XOR | 40 | |
| MilanP06 | Modular Arithmetic 2 | 20 | |
| vikaran | Hex | 5 | |
| catalin_munteanu | Modular Inverting | 25 | |
| Sixmix10 | Favourite byte | 20 | |
| MilanP06 | Modular Arithmetic 1 | 20 | |
| A5hTurN3R | Modular Inverting | 25 | |
| ugp6 | Chinese Remainder Theorem | 40 | |
| jarvy5 | RSA Signatures | 25 | |
| MilanP06 | Extended GCD | 20 | |
| NaLnO | Finding Flags | 2 | |
| MilanP06 | Greatest Common Divisor | 15 | |
| ugp6 | Modular Square Root | 35 | |
| teetoamate | Marin's Secrets | 50 | |
| benedictst | RSA Signatures | 25 | |
| 2989wolf | Greatest Common Divisor | 15 | |
| RobouteGuilliman | Finding Flags | 2 | |
| LucaMaguire81 | You either know, XOR you don't | 30 | |
| vikaran | ASCII | 5 | |
| krishramani27 | Bringing It All Together | 50 | |
| Ishaan_Agarwal | XOR Starter | 10 | |
| MilanP06 | You either know, XOR you don't | 30 | |
| vikaran | Great Snakes | 3 | |
| JKawala | Finding Flags | 2 | |
| vikaran | Finding Flags | 2 | |
| joeylu313 | You either know, XOR you don't | 30 | |
| Ishaan_Agarwal | Bytes and Big Integers | 10 | |
| joeylu313 | Favourite byte | 20 | |
| catalin_munteanu | Modular Arithmetic 2 | 20 | |
| WyattZhang | XOR Starter | 10 | |
| joeylu313 | XOR Properties | 15 | |
| krishramani27 | Diffusion through Permutation | 30 | |
| krishramani27 | Confusion through Substitution | 25 | |
| jarvy5 | RSA Decryption | 20 | |
| MrJLD | Symmetry | 50 | |
| A5hTurN3R | Modular Arithmetic 2 | 20 | |
| jarvy5 | Private Keys | 20 |
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