| Date | User | Challenge | Score |
| natashaborda | Private Keys | 20 | |
| natashaborda | Euler's Totient | 20 | |
| natashaborda | Public Keys | 15 | |
| ramszaj513 | Crossed Wires | 100 | |
| natashaborda | Modular Exponentiation | 10 | |
| TnT_DG | Base64 | 10 | |
| stellev | Public Keys | 15 | |
| kacpert25 | Paper Plane | 120 | |
| Piotr271 | Square Eyes | 35 | |
| stellev | Modular Exponentiation | 10 | |
| Cadaeib65 | Vectors | 10 | |
| natashaborda | Modular Binomials | 80 | |
| mkrajevsky | Computing Shared Secrets | 30 | |
| zerotrace | Favourite byte | 20 | |
| mkrajevsky | Computing Public Values | 25 | |
| ShadetheAvali | Inferius Prime | 30 | |
| frankn | Lazy CBC | 60 | |
| mkrajevsky | Generators of Groups | 20 | |
| ShadetheAvali | Factoring | 15 | |
| ShadetheAvali | RSA Signatures | 25 | |
| patryk | Lazy CBC | 60 | |
| ispo | Square Eyes | 35 | |
| hisenbruh | Jack's Birthday Hash | 20 | |
| Piotr271 | Monoprime | 30 | |
| kubie | Curveball | 100 | |
| zerotrace | XOR Properties | 15 | |
| Piotr271 | Inferius Prime | 30 | |
| patryk | Flipping Cookie | 60 | |
| ispo | Monoprime | 30 | |
| natashaborda | Adrien's Signs | 80 | |
| natashaborda | Chinese Remainder Theorem | 40 | |
| natashaborda | Modular Square Root | 35 | |
| PixelPuncheur | Bytes and Big Integers | 10 | |
| ispo | Inferius Prime | 30 | |
| natashaborda | Legendre Symbol | 35 | |
| natashaborda | Quadratic Residues | 25 | |
| natashaborda | Modular Inverting | 25 | |
| natashaborda | Modular Arithmetic 2 | 20 | |
| natashaborda | Modular Arithmetic 1 | 20 | |
| nabbiinn | Chinese Remainder Theorem | 40 | |
| natashaborda | Extended GCD | 20 | |
| Hib00boo | Smooth Criminal | 60 | |
| natashaborda | Greatest Common Divisor | 15 | |
| LambrosGeor | Greatest Common Divisor | 15 | |
| frankn | Flipping Cookie | 60 | |
| kubie | Edwards Goes Degenerate | 100 | |
| ShadetheAvali | Round Keys | 20 | |
| ispo | Factoring | 15 | |
| natashaborda | You either know, XOR you don't | 30 | |
| synic | Modular Square Root | 35 |
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