| Date | User | Challenge | Score |
| berran | An Exceptional Twisted Mind | 125 | |
| aleena_meraj | SSH Keys | 35 | |
| aleena_meraj | CERTainly not | 30 | |
| Baeco | Prime Power Isogenies | 50 | |
| BadMan345 | Hex | 5 | |
| JustLlama | ASCII | 5 | |
| sakura0503 | XOR Starter | 10 | |
| BadMan345 | ASCII | 5 | |
| aleena_meraj | Privacy-Enhanced Mail? | 25 | |
| sakura0503 | Bytes and Big Integers | 10 | |
| aleena_meraj | Triple DES | 60 | |
| Baeco | Special Isogenies | 30 | |
| aleena_meraj | Lazy CBC | 60 | |
| aleena_meraj | Flipping Cookie | 60 | |
| rokhayaa88 | Quadratic Residues | 25 | |
| BadMan345 | Great Snakes | 3 | |
| aleena_meraj | ECB Oracle | 60 | |
| BadMan345 | Finding Flags | 2 | |
| aleena_meraj | ECB CBC WTF | 55 | |
| JustLlama | Great Snakes | 3 | |
| maxsu | XOR Starter | 10 | |
| hunnter | Token Appreciation | 5 | |
| sakura0503 | Base64 | 10 | |
| Antipneumonic | Hex | 5 | |
| hunnter | JWT Sessions | 10 | |
| aleena_meraj | Passwords as Keys | 50 | |
| hunnter | Modular Exponentiation | 10 | |
| Antipneumonic | ASCII | 5 | |
| Lgoral | Decrypting TLS 1.3 | 35 | |
| JustLlama | Finding Flags | 2 | |
| Antipneumonic | Great Snakes | 3 | |
| hunnter | Resisting Bruteforce | 10 | |
| LeeWangWy | Diffusion through Permutation | 30 | |
| Antipneumonic | Finding Flags | 2 | |
| Lgoral | Decrypting TLS 1.2 | 30 | |
| rokhayaa88 | Modular Inverting | 25 | |
| aleena_meraj | Modes of Operation Starter | 15 | |
| rokhayaa88 | Modular Arithmetic 2 | 20 | |
| c0mpos3r99 | Bytes and Big Integers | 10 | |
| Klaudia | LWE Background | 5 | |
| aleena_meraj | Bringing It All Together | 50 | |
| aleena_meraj | Diffusion through Permutation | 30 | |
| Klaudia | Gaussian Reduction | 50 | |
| c0mpos3r99 | Base64 | 10 | |
| yoni_naamat | Static Client | 100 | |
| aleena_meraj | Confusion through Substitution | 25 | |
| aleena_meraj | Round Keys | 20 | |
| Roman1301 | Hex | 5 | |
| ali_hamas | ECB Oracle | 60 | |
| rokhayaa88 | Modular Arithmetic 1 | 20 |
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