| Date | User | Challenge | Score |
| krishramani27 | Keyed Permutations | 5 | |
| perezident | XOR Properties | 15 | |
| Tziprose9 | Hex | 5 | |
| kshah03 | Public Keys | 15 | |
| flouxtine | Logon Zero | 80 | |
| khalid_salad | No Way JOSE | 20 | |
| Tziprose9 | ASCII | 5 | |
| krishramani27 | Modular Binomials | 80 | |
| tenranpo | Great Snakes | 3 | |
| krishramani27 | Adrien's Signs | 80 | |
| krishramani27 | Chinese Remainder Theorem | 40 | |
| kshah03 | Modular Exponentiation | 10 | |
| Tziprose9 | Great Snakes | 3 | |
| kshah03 | Modular Binomials | 80 | |
| kshah03 | Adrien's Signs | 80 | |
| Tziprose9 | Finding Flags | 2 | |
| krishramani27 | Modular Square Root | 35 | |
| krishramani27 | Legendre Symbol | 35 | |
| Delight18 | Monoprime | 30 | |
| SlayTomato_Z | Favourite byte | 20 | |
| khalid_salad | Gaussian Reduction | 50 | |
| krishramani27 | Quadratic Residues | 25 | |
| krishramani27 | Modular Inverting | 25 | |
| krishramani27 | Modular Arithmetic 2 | 20 | |
| Delight18 | Factoring | 15 | |
| Delight18 | RSA Signatures | 25 | |
| krishramani27 | Modular Arithmetic 1 | 20 | |
| krishramani27 | Extended GCD | 20 | |
| c4e | The Matrix | 75 | |
| khalid_salad | What's a Lattice? | 40 | |
| Icordon45 | Privacy-Enhanced Mail? | 25 | |
| krishramani27 | Greatest Common Divisor | 15 | |
| krishramani27 | You either know, XOR you don't | 30 | |
| kshah03 | Chinese Remainder Theorem | 40 | |
| kshah03 | Modular Square Root | 35 | |
| khalid_salad | Gram Schmidt | 30 | |
| kshah03 | Legendre Symbol | 35 | |
| kshah03 | Quadratic Residues | 25 | |
| kshah03 | Modular Inverting | 25 | |
| krishramani27 | Favourite byte | 20 | |
| kshah03 | Modular Arithmetic 2 | 20 | |
| krishramani27 | XOR Properties | 15 | |
| krishramani27 | XOR Starter | 10 | |
| krishramani27 | Bytes and Big Integers | 10 | |
| krishramani27 | Base64 | 10 | |
| krishramani27 | Hex | 5 | |
| krishramani27 | ASCII | 5 | |
| SlayTomato_Z | XOR Properties | 15 | |
| krishramani27 | Great Snakes | 3 | |
| kshah03 | Modular Arithmetic 1 | 20 |
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