| Date | User | Challenge | Score |
| DarkinCypher | Adrien's Signs | 80 | |
| 0xCAPgz | Hex | 5 | |
| Laingameruwu | ECB CBC WTF | 55 | |
| susanto | ECB Oracle | 60 | |
| Snacky | Efficient Exchange | 50 | |
| Ti | Bytes and Big Integers | 10 | |
| dvck13 | Megalomaniac 3 | 120 | |
| dvck13 | Megalomaniac 2 | 120 | |
| dvck13 | Megalomaniac 1 | 100 | |
| oik | XOR Starter | 10 | |
| oik | Bytes and Big Integers | 10 | |
| Snacky | Curves and Logs | 40 | |
| DarkinCypher | Chinese Remainder Theorem | 40 | |
| 0xCAPgz | ASCII | 5 | |
| Sofia1234 | Generators of Groups | 20 | |
| Sofia1234 | Working with Fields | 10 | |
| brayitan | Deriving Symmetric Keys | 40 | |
| Snacky | Scalar Multiplication | 35 | |
| Beru | Modes of Operation Starter | 15 | |
| 0xvpr | Chinese Remainder Theorem | 40 | |
| brayitan | Script Kiddie | 70 | |
| t4l | ZKP Introduction | 5 | |
| brayitan | Static Client 2 | 120 | |
| brayitan | Additive | 70 | |
| 0xCAPgz | Great Snakes | 3 | |
| brayitan | Static Client | 100 | |
| brayitan | Export-grade | 100 | |
| brayitan | Parameter Injection | 60 | |
| brayitan | Computing Shared Secrets | 30 | |
| brayitan | Computing Public Values | 25 | |
| brayitan | Generators of Groups | 20 | |
| brayitan | Working with Fields | 10 | |
| yongchivo | ASCII | 5 | |
| brayitan | Bringing It All Together | 50 | |
| yongchivo | Great Snakes | 3 | |
| LvKNnT | DLOG on the Surface | 40 | |
| yongchivo | Finding Flags | 2 | |
| Snacky | Point Addition | 30 | |
| 756TrollerLujanC | Quadratic Residues | 25 | |
| 756TrollerLujanC | Modular Inverting | 25 | |
| Gollum3063 | Finding Flags | 2 | |
| Bat_bjj | You either know, XOR you don't | 30 | |
| MilkiSushi | Background Reading | 5 | |
| Sofia1234 | Stream of Consciousness | 80 | |
| Sofia1234 | CTRIME | 70 | |
| Sofia1234 | Bean Counter | 60 | |
| Sofia1234 | Symmetry | 50 | |
| Sofia1234 | Triple DES | 60 | |
| MilkiSushi | Export-grade | 100 | |
| Sofia1234 | Lazy CBC | 60 |
You are now level Current level