| Date | User | Challenge | Score |
| Ulibeh | Finding Flags | 2 | |
| MayfraylTumbali | Base64 | 10 | |
| SRM | Great Snakes | 3 | |
| MayfraylTumbali | Hex | 5 | |
| SRM | Finding Flags | 2 | |
| MayfraylTumbali | ASCII | 5 | |
| Nyimas | Lemur XOR | 40 | |
| Azamath | Structure of AES | 15 | |
| 0xMissU | XOR Starter | 10 | |
| Nyimas | Bean Counter | 60 | |
| Nyimas | Symmetry | 50 | |
| Nyimas | Flipping Cookie | 60 | |
| Nyimas | ECB CBC WTF | 55 | |
| Nyimas | ECB Oracle | 60 | |
| Nyimas | Passwords as Keys | 50 | |
| Nyimas | Modes of Operation Starter | 15 | |
| AbdulGhofur | SSH Keys | 35 | |
| Azamath | Resisting Bruteforce | 10 | |
| MrCobblepot | Keyed Permutations | 5 | |
| AbdulGhofur | Modular Inverting | 25 | |
| Nyimas | Modular Binomials | 80 | |
| AbdulGhofur | Modular Arithmetic 2 | 20 | |
| AbdulGhofur | Modular Arithmetic 1 | 20 | |
| Nyimas | Adrien's Signs | 80 | |
| Nyimas | Chinese Remainder Theorem | 40 | |
| Nyimas | Modular Square Root | 35 | |
| AbdulGhofur | Extended GCD | 20 | |
| Nyimas | Legendre Symbol | 35 | |
| AbdulGhofur | Greatest Common Divisor | 15 | |
| gagas | Export-grade | 100 | |
| Azamath | Keyed Permutations | 5 | |
| angelinafr | Deriving Symmetric Keys | 40 | |
| Nyimas | Quadratic Residues | 25 | |
| angelinafr | Computing Shared Secrets | 30 | |
| koromaki88 | Network Attacks | 5 | |
| angelinafr | Computing Public Values | 25 | |
| AbdulGhofur | Base64 | 10 | |
| alvinportuguez | Greatest Common Divisor | 15 | |
| angelinafr | Generators of Groups | 20 | |
| AbdulGhofur | Hex | 5 | |
| olsujabu | Modular Inverting | 25 | |
| angelinafr | Working with Fields | 10 | |
| GraVityRagE | Bytes and Big Integers | 10 | |
| Nyimas | Smooth Criminal | 60 | |
| angelinafr | Factoring | 15 | |
| angelinafr | RSA Signatures | 25 | |
| Azalea | Chinese Remainder Theorem | 40 | |
| angelinafr | Modulus Inutilis | 50 | |
| angelinafr | Salty | 20 | |
| angelinafr | Manyprime | 40 |
You are now level Current level