| Date | User | Challenge | Score |
| Sapphoneix | Finding Flags | 2 | |
| spy003 | Triple DES | 60 | |
| ho_ongvyy | Montgomery's Ladder | 40 | |
| Shelob | Modular Arithmetic 2 | 20 | |
| PAVN | Broken RSA | 100 | |
| PAVN | No Way Back Home | 100 | |
| Garab | Hamiltonicity 2 | 175 | |
| Garab | Hamiltonicity 2 (CryptoHack) | 0 | |
| rubber_duck | Passwords as Keys | 50 | |
| madelino | Jack's Birthday Confusion | 30 | |
| dorianliu | Finding Flags | 2 | |
| pfrail2004 | Bytes and Big Integers | 10 | |
| vladstar69 | Broken RSA | 100 | |
| madelino | Jack's Birthday Hash | 20 | |
| ayammm | Greatest Common Divisor | 15 | |
| UrSourceCode | Network Attacks | 5 | |
| UrSourceCode | Great Snakes | 3 | |
| mochaowo | Saying Hello | 20 | |
| vladstar69 | No Way Back Home | 100 | |
| UrSourceCode | Finding Flags | 2 | |
| rubber_duck | Modes of Operation Starter | 15 | |
| Hattmakare | Point Negation | 10 | |
| mochaowo | TLS Handshake | 15 | |
| rubber_duck | Bringing It All Together | 50 | |
| froububu | Hex | 5 | |
| Hattmakare | Background Reading | 5 | |
| froububu | ASCII | 5 | |
| Duster | Passwords as Keys | 50 | |
| PAVN | Adrien's Signs | 80 | |
| ho_ongvyy | Efficient Exchange | 50 | |
| vladstar69 | Adrien's Signs | 80 | |
| quangntenemy | Hamiltonicity 1 | 100 | |
| quangntenemy | Hamiltonicity (CryptoHack) | 0 | |
| Pretam | Keyed Permutations | 5 | |
| Pretam | Greatest Common Divisor | 15 | |
| etcetera | Efficient Exchange | 50 | |
| granitius | Greatest Common Divisor | 15 | |
| TheSavageTeddy | The Matrix Reloaded | 100 | |
| vladstar69 | Successive Powers | 60 | |
| PAVN | Successive Powers | 60 | |
| PAVN | Modular Square Root | 35 | |
| vladstar69 | Chinese Remainder Theorem | 40 | |
| vladstar69 | Modular Square Root | 35 | |
| PAVN | Chinese Remainder Theorem | 40 | |
| PAVN | Legendre Symbol | 35 | |
| ho_ongvyy | Curves and Logs | 40 | |
| hynxio | Modular Square Root | 35 | |
| Jean_MO29 | Flipping Cookie | 60 | |
| vladstar69 | Legendre Symbol | 35 | |
| namaorantauga | RSA Decryption | 20 |
You are now level Current level