| Date | User | Challenge | Score |
| Catropic | Legendre Symbol | 35 | |
| 0xdelphine404 | Encoding Challenge | 40 | |
| cedric013 | Tenet: The Plagarism (HKCERT CTF) | 0 | |
| artem_1 | Salty | 20 | |
| djfc | Modes of Operation Starter | 15 | |
| elbis | Round Keys | 20 | |
| alexcy | Legendre Symbol | 35 | |
| Dizere | Modular Arithmetic 2 | 20 | |
| Novamir | Generators of Groups | 20 | |
| Novamir | Working with Fields | 10 | |
| artem_1 | Manyprime | 40 | |
| phomai739391 | Successive Powers | 60 | |
| Novamir | Modulus Inutilis | 50 | |
| nellie | Parameter Injection | 60 | |
| wendywendo | Modular Arithmetic 2 | 20 | |
| Novamir | Salty | 20 | |
| djfc | Bringing It All Together | 50 | |
| wendywendo | Modular Arithmetic 1 | 20 | |
| nellie | Deriving Symmetric Keys | 40 | |
| jiyune_choi | Manyprime | 40 | |
| nellie | Computing Shared Secrets | 30 | |
| nellie | Computing Public Values | 25 | |
| Ayantu | Great Snakes | 3 | |
| nellie | Generators of Groups | 20 | |
| Makia_ALUUT | Base64 | 10 | |
| nellie | Working with Fields | 10 | |
| nellie | Modulus Inutilis | 50 | |
| Sebie | Bytes and Big Integers | 10 | |
| Ayantu | Finding Flags | 2 | |
| elbis | Structure of AES | 15 | |
| nellie | Salty | 20 | |
| jiaojiao | Square Eyes | 35 | |
| wendywendo | Extended GCD | 20 | |
| nellie | Manyprime | 40 | |
| tianyuan | ECB CBC WTF | 55 | |
| sea | Common Ground | 75 | |
| nellie | Monoprime | 30 | |
| skiller3478 | The Matrix Reloaded | 100 | |
| nellie | Factoring | 15 | |
| maksushka | Vote for Pedro | 150 | |
| nellie | RSA Signatures | 25 | |
| vtnam | Point Negation | 10 | |
| lll111 | Efficient Exchange | 50 | |
| nellie | RSA Decryption | 20 | |
| nellie | Private Keys | 20 | |
| nellie | Euler's Totient | 20 | |
| djfc | Diffusion through Permutation | 30 | |
| nellie | Public Keys | 15 | |
| nellie | Modular Exponentiation | 10 | |
| nellie | Bean Counter | 60 |
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