| Date | User | Challenge | Score |
| elyessmida | Modes of Operation Starter | 15 | |
| 0xhakutaku | Great Snakes | 3 | |
| 0xhakutaku | Finding Flags | 2 | |
| kieugiathinhphat | Parameter Injection | 60 | |
| ch0k0 | Bytes and Big Integers | 10 | |
| DIMITRISMANIATIS | Factoring | 15 | |
| SeekerZ0 | Great Snakes | 3 | |
| guilty | ASCII | 5 | |
| MaxK | Modular Arithmetic 2 | 20 | |
| Nadav160 | Generators of Groups | 20 | |
| SeekerZ0 | Finding Flags | 2 | |
| saba | Favourite byte | 20 | |
| Googo | Modular Arithmetic 1 | 20 | |
| cuongsl | Legendre Symbol | 35 | |
| Meen4 | ECB Oracle | 60 | |
| aviviv | Stream of Consciousness | 80 | |
| ArdorBlossom | Flipping Cookie | 60 | |
| guilty | Great Snakes | 3 | |
| DIMITRISMANIATIS | RSA Signatures | 25 | |
| kzzm | Parameter Injection | 60 | |
| Nadav160 | Working with Fields | 10 | |
| RAVEN_031 | Background Reading | 5 | |
| 333 | XOR Starter | 10 | |
| ch0k0 | Base64 | 10 | |
| Komasan_ | Curveball | 100 | |
| brhmgndgms | Great Snakes | 3 | |
| brhmgndgms | Finding Flags | 2 | |
| ch0k0 | Hex | 5 | |
| kieugiathinhphat | Deriving Symmetric Keys | 40 | |
| kzzm | Deriving Symmetric Keys | 40 | |
| Googo | Extended GCD | 20 | |
| kzzm | Computing Shared Secrets | 30 | |
| ch0k0 | ASCII | 5 | |
| minnnjuuu | Resisting Bruteforce | 10 | |
| kieugiathinhphat | Computing Shared Secrets | 30 | |
| Kal1re | Generators of Groups | 20 | |
| preran | Finding Flags | 2 | |
| kieugiathinhphat | Computing Public Values | 25 | |
| kzzm | Computing Public Values | 25 | |
| Knic | Marin's Secrets | 50 | |
| DreadOnyx | You either know, XOR you don't | 30 | |
| Knic | Infinite Descent | 50 | |
| lynny42 | d-phi-enc (HackTM CTF) | 0 | |
| cuongsl | Quadratic Residues | 25 | |
| bodymo20000 | You either know, XOR you don't | 30 | |
| Kal1re | Working with Fields | 10 | |
| jeanchpt | Monoprime | 30 | |
| Kal1re | Modulus Inutilis | 50 | |
| kzzm | Generators of Groups | 20 | |
| ciphermk | Finding Flags | 2 |
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