| Date | User | Challenge | Score |
| TheRoundRoads | Monoprime | 30 | |
| useless | Size and Basis | 15 | |
| TheRoundRoads | Factoring | 15 | |
| TheRoundRoads | RSA Signatures | 25 | |
| lanzuy | Network Attacks | 5 | |
| Dyzz | Network Attacks | 5 | |
| Rayz0 | Base64 | 10 | |
| Dyzz | Great Snakes | 3 | |
| Dyzz | Finding Flags | 2 | |
| Rayz0 | Hex | 5 | |
| hackermans232 | Base64 | 10 | |
| hackermans232 | Hex | 5 | |
| Rezzen | ASCII | 5 | |
| lanzuy | Great Snakes | 3 | |
| lanzuy | Finding Flags | 2 | |
| TheRoundRoads | RSA Decryption | 20 | |
| hackermans232 | ASCII | 5 | |
| TheRoundRoads | Private Keys | 20 | |
| Karkinos | Modular Arithmetic 1 | 20 | |
| TheRoundRoads | Euler's Totient | 20 | |
| nji4bmc5l | Confusion through Substitution | 25 | |
| hackermans232 | Great Snakes | 3 | |
| zabieru | Round Keys | 20 | |
| Rayz0 | ASCII | 5 | |
| TheRoundRoads | Public Keys | 15 | |
| zabieru | Structure of AES | 15 | |
| darkenick | Base64 | 10 | |
| TheRoundRoads | Modular Exponentiation | 10 | |
| Rayz0 | Great Snakes | 3 | |
| mnoob411 | Modular Inverting | 25 | |
| zabieru | Resisting Bruteforce | 10 | |
| Beethoven3 | Vote for Pedro | 150 | |
| hackermans232 | Finding Flags | 2 | |
| zabieru | Keyed Permutations | 5 | |
| Karkinos | Extended GCD | 20 | |
| darkenick | Hex | 5 | |
| Rayz0 | Finding Flags | 2 | |
| fallsSentinel | Greatest Common Divisor | 15 | |
| mnoob411 | Modular Arithmetic 2 | 20 | |
| zabieru | Quadratic Residues | 25 | |
| zabieru | Modular Inverting | 25 | |
| zabieru | Modular Arithmetic 2 | 20 | |
| mistpyromaniac | Diffusion through Permutation | 30 | |
| zabieru | Modular Arithmetic 1 | 20 | |
| eagleredemp | Bringing It All Together | 50 | |
| demie | Great Snakes | 3 | |
| crisys842 | Base64 | 10 | |
| demie | Finding Flags | 2 | |
| bhushan | Modular Inverting | 25 | |
| mistpyromaniac | Confusion through Substitution | 25 |
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