| Date | User | Challenge | Score |
| kc762394 | Diffusion through Permutation | 30 | |
| mahu | Modular Binomials | 80 | |
| waltonj | Bytes and Big Integers | 10 | |
| kc762394 | Confusion through Substitution | 25 | |
| leeannaa13 | Base64 | 10 | |
| ghaisan | Symmetry | 50 | |
| Billy1bob1joe11 | Bytes and Big Integers | 10 | |
| bE200 | Great Snakes | 3 | |
| Billy1bob1joe11 | Base64 | 10 | |
| F0rhex | Adrien's Signs | 80 | |
| waltonj | Base64 | 10 | |
| leeannaa13 | Hex | 5 | |
| F0rhex | Chinese Remainder Theorem | 40 | |
| ghaisan | Flipping Cookie | 60 | |
| waltonj | Hex | 5 | |
| bE200 | Finding Flags | 2 | |
| F0rhex | Modular Square Root | 35 | |
| wangfu | Resisting Bruteforce | 10 | |
| 4wutKall | XOR Properties | 15 | |
| Grooninium | Finding Flags | 2 | |
| panhrist | Factoring | 15 | |
| F0rhex | Legendre Symbol | 35 | |
| Kicks299 | Bytes and Big Integers | 10 | |
| Lebronfan2836 | ASCII | 5 | |
| toliphye | Modes of Operation Starter | 15 | |
| Lebronfan2836 | Great Snakes | 3 | |
| gathman | Finding Flags | 2 | |
| Lebronfan2836 | Finding Flags | 2 | |
| PanagiotisK | Quadratic Residues | 25 | |
| toliphye | Bringing It All Together | 50 | |
| thegoat2 | You either know, XOR you don't | 30 | |
| Adem0 | No Leaks | 100 | |
| wangfu | Keyed Permutations | 5 | |
| toliphye | Diffusion through Permutation | 30 | |
| panhrist | RSA Signatures | 25 | |
| panhrist | RSA Decryption | 20 | |
| panhrist | Private Keys | 20 | |
| panhrist | Euler's Totient | 20 | |
| panhrist | Public Keys | 15 | |
| panhrist | Modular Exponentiation | 10 | |
| Noano2015 | Gaussian Reduction | 50 | |
| toliphye | Confusion through Substitution | 25 | |
| PanagiotisK | Modular Inverting | 25 | |
| bopitbuddy | Finding Flags | 2 | |
| PanagiotisK | Modular Arithmetic 2 | 20 | |
| Cyber_Student_01 | Quadratic Residues | 25 | |
| Cyber_Student_01 | Base64 | 10 | |
| valerio | Encoding Challenge | 40 | |
| Cyber_Student_01 | Hex | 5 | |
| ShadowLord47 | Adrien's Signs | 80 |
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