| Date | User | Challenge | Score |
| Cerades | Missing Modulus | 80 | |
| NotOfficial16 | Finding Flags | 2 | |
| Cerades | Nativity | 60 | |
| Cerades | Bounded Noise | 50 | |
| spaceblanket | Modular Square Root | 35 | |
| walid_z1 | Monoprime | 30 | |
| sam10l | Great Snakes | 3 | |
| ramhuw | Favourite byte | 20 | |
| sam10l | Finding Flags | 2 | |
| taki1 | Factoring | 15 | |
| ramhuw | XOR Properties | 15 | |
| selectride | Adrien's Signs | 80 | |
| taki1 | RSA Signatures | 25 | |
| walid_z1 | Factoring | 15 | |
| KAKA11 | Great Snakes | 3 | |
| ramhuw | XOR Starter | 10 | |
| welder | Round Keys | 20 | |
| KAKA11 | Finding Flags | 2 | |
| Tonghedocon | Ticket Maestro | 200 | |
| SpongeBob369 | ECB CBC WTF | 55 | |
| walid_z1 | RSA Signatures | 25 | |
| Conquer | Great Snakes | 3 | |
| Conquer | Finding Flags | 2 | |
| ramhuw | Bytes and Big Integers | 10 | |
| lapa | Modes of Operation Starter | 15 | |
| tekrrais | Resisting Bruteforce | 10 | |
| tekrrais | Bringing It All Together | 50 | |
| tekrrais | Diffusion through Permutation | 30 | |
| tekrrais | Confusion through Substitution | 25 | |
| tekrrais | Round Keys | 20 | |
| tekrrais | Structure of AES | 15 | |
| tekrrais | Keyed Permutations | 5 | |
| ramhuw | Base64 | 10 | |
| crowcell | ECB Oracle | 60 | |
| walid_z1 | RSA Decryption | 20 | |
| CYDF1121 | Parameter Injection | 60 | |
| walid_z1 | Private Keys | 20 | |
| Yoga07 | ASCII | 5 | |
| SpongeBob369 | ECB Oracle | 60 | |
| tekrrais | SSH Keys | 35 | |
| Yoga07 | Great Snakes | 3 | |
| tekrrais | CERTainly not | 30 | |
| tekrrais | Privacy-Enhanced Mail? | 25 | |
| walid_z1 | Euler's Totient | 20 | |
| walid_z1 | Public Keys | 15 | |
| walid_z1 | Modular Exponentiation | 10 | |
| Yoga07 | Finding Flags | 2 | |
| tekrrais | Favourite byte | 20 | |
| ramhuw | Hex | 5 | |
| ramhuw | ASCII | 5 |
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