| Date | User | Challenge | Score |
| r777_ | Parameter Injection | 60 | |
| r777_ | Everything is Big | 70 | |
| r777_ | Deriving Symmetric Keys | 40 | |
| pako_pirate | Token Appreciation | 5 | |
| r777_ | Modulus Inutilis | 50 | |
| Keyne | Finding Flags | 2 | |
| Birb_3 | Greatest Common Divisor | 15 | |
| r777_ | Computing Shared Secrets | 30 | |
| flooeg | Favourite byte | 20 | |
| r777_ | Salty | 20 | |
| r777_ | Computing Public Values | 25 | |
| r777_ | Manyprime | 40 | |
| r777_ | Generators of Groups | 20 | |
| r777_ | Working with Fields | 10 | |
| comandantey173 | ASCII | 5 | |
| QRms | Micro Transmissions | 120 | |
| r777_ | Square Eyes | 35 | |
| r777_ | Monoprime | 30 | |
| r777_ | Prime and Prejudice | 200 | |
| r777_ | Inferius Prime | 30 | |
| tranchsanto | Let's Prove It | 120 | |
| comandantey173 | Great Snakes | 3 | |
| starnotes | Resisting Bruteforce | 10 | |
| r777_ | Factoring | 15 | |
| r777_ | RSA Signatures | 25 | |
| Pseudo_trash | XOR Properties | 15 | |
| starnotes | Keyed Permutations | 5 | |
| r777_ | RSA Decryption | 20 | |
| r777_ | Private Keys | 20 | |
| comandantey173 | Finding Flags | 2 | |
| r777_ | Euler's Totient | 20 | |
| r777_ | Public Keys | 15 | |
| r777_ | Modular Exponentiation | 10 | |
| Pseudo_trash | XOR Starter | 10 | |
| r777_ | Real Eisenstein | 150 | |
| R125A14 | Bytes and Big Integers | 10 | |
| lia_samuelov | Extended GCD | 20 | |
| r777_ | Cofactor Cofantasy | 150 | |
| Samigo | ECB Oracle | 60 | |
| pako_pirate | You either know, XOR you don't | 30 | |
| j_m | Hamiltonicity 2 (CryptoHack) | 0 | |
| j_m | Hamiltonicity 2 | 175 | |
| Anass67 | Infinite Descent | 50 | |
| eloise_ | Great Snakes | 3 | |
| eloise_ | Finding Flags | 2 | |
| ana_s_ | XOR Starter | 10 | |
| r777_ | Unencryptable | 125 | |
| gruenerheli | Encoding Challenge | 40 | |
| r777_ | Roll your Own | 125 | |
| pako_pirate | Favourite byte | 20 |
You are now level Current level