| Date | User | Challenge | Score |
| shadowdefend | Finding Flags | 2 | |
| kafuchino | Base64 | 10 | |
| kafuchino | Hex | 5 | |
| Aryaethn | Twisted CSIDH Isogenies | 70 | |
| evantampa129 | Bringing It All Together | 50 | |
| Priandika | Base64 | 10 | |
| kafuchino | ASCII | 5 | |
| kafuchino | Great Snakes | 3 | |
| Aryaethn | Secret Exponents | 60 | |
| Priandika | Hex | 5 | |
| HeavyGoat | Confusion through Substitution | 25 | |
| ShahdElrawy | Round Keys | 20 | |
| skkra0 | Modular Arithmetic 2 | 20 | |
| HeavyGoat | Round Keys | 20 | |
| Aryaethn | Prime Power Isogenies | 50 | |
| Amani | ECB CBC WTF | 55 | |
| HeavyGoat | Structure of AES | 15 | |
| Priandika | ASCII | 5 | |
| gruenerheli | Euler's Totient | 20 | |
| gruenerheli | Public Keys | 15 | |
| gruenerheli | Modular Exponentiation | 10 | |
| kacpersowka | Computing Public Values | 25 | |
| gruenerheli | Successive Powers | 60 | |
| HeavyGoat | Resisting Bruteforce | 10 | |
| PPotat0 | XOR Starter | 10 | |
| vii | Favourite byte | 20 | |
| gruenerheli | Lemur XOR | 40 | |
| PPotat0 | Bytes and Big Integers | 10 | |
| HeavyGoat | Keyed Permutations | 5 | |
| NatCrypto | Hex | 5 | |
| bobiealice | The Matrix | 75 | |
| svenny | Modular Square Root | 35 | |
| NatCrypto | ASCII | 5 | |
| NatCrypto | Great Snakes | 3 | |
| gruenerheli | Modular Binomials | 80 | |
| agentjlrmt | CTRIME | 70 | |
| NatCrypto | Finding Flags | 2 | |
| cryptohack137 | Quadratic Residues | 25 | |
| paulihno15 | Salty | 20 | |
| georgeap | You either know, XOR you don't | 30 | |
| SagePloht | You either know, XOR you don't | 30 | |
| ShahdElrawy | Structure of AES | 15 | |
| Ravenshade | Base64 | 10 | |
| Carole | XOR Starter | 10 | |
| Ravenshade | Hex | 5 | |
| Ravenshade | ASCII | 5 | |
| Ravenshade | Great Snakes | 3 | |
| mehtasec | Favourite byte | 20 | |
| Ravenshade | Finding Flags | 2 | |
| kafuchino | Finding Flags | 2 |
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