| Date | User | Challenge | Score |
| GhostByte218 | Network Attacks | 5 | |
| nikame | Modular Arithmetic 1 | 20 | |
| FERNANKING | Structure of AES | 15 | |
| GhostByte218 | Great Snakes | 3 | |
| gorje | Keyed Permutations | 5 | |
| nikame | Extended GCD | 20 | |
| supercatex | Chinese Remainder Theorem | 40 | |
| theodor_run | Hex | 5 | |
| GhostByte218 | Finding Flags | 2 | |
| blackcavia87 | Resisting Bruteforce | 10 | |
| MishellyHerrera | Modular Inverting | 25 | |
| Raodaz | Resisting Bruteforce | 10 | |
| Anouar404 | Extended GCD | 20 | |
| TheLPSC | Structure of AES | 15 | |
| Rocky888 | Successive Powers | 60 | |
| MishellyHerrera | Modular Arithmetic 2 | 20 | |
| GoldMaximus | Resisting Bruteforce | 10 | |
| menormakonha | Bytes and Big Integers | 10 | |
| theodor_run | ASCII | 5 | |
| blackcavia87 | Keyed Permutations | 5 | |
| Pipo29 | Resisting Bruteforce | 10 | |
| androidisfreedom | Base64 | 10 | |
| Rocky888 | Lemur XOR | 40 | |
| Averyoddone | XOR Properties | 15 | |
| z1g24g | Modular Square Root | 35 | |
| o1101ol | Resisting Bruteforce | 10 | |
| FERNANKING | Resisting Bruteforce | 10 | |
| kumzalo | Resisting Bruteforce | 10 | |
| sh4dowxZ | Resisting Bruteforce | 10 | |
| GoldMaximus | Keyed Permutations | 5 | |
| Raodaz | Keyed Permutations | 5 | |
| Pipo29 | Keyed Permutations | 5 | |
| Roseae | Keyed Permutations | 5 | |
| TheLPSC | Resisting Bruteforce | 10 | |
| nikame | Greatest Common Divisor | 15 | |
| FERNANKING | Keyed Permutations | 5 | |
| kumzalo | Keyed Permutations | 5 | |
| o1101ol | Keyed Permutations | 5 | |
| Rocky888 | Network Attacks | 5 | |
| sh4dowxZ | Keyed Permutations | 5 | |
| theodor_run | Great Snakes | 3 | |
| theodor_run | Finding Flags | 2 | |
| TheLPSC | Keyed Permutations | 5 | |
| menormakonha | Base64 | 10 | |
| victoryst | Legendre Symbol | 35 | |
| menormakonha | Hex | 5 | |
| geraldnyeo | Confusion through Substitution | 25 | |
| Rocky888 | Bean Counter | 60 | |
| menormakonha | ASCII | 5 | |
| LULZ1337 | Hex | 5 |
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