| Date | User | Challenge | Score |
| cryptohack720 | Export-grade | 100 | |
| Arshika_Dadhich | Finding Flags | 2 | |
| Lauromar | Confusion through Substitution | 25 | |
| jellio04 | ASCII | 5 | |
| guyanyong | Keyed Permutations | 5 | |
| Lauromar | Round Keys | 20 | |
| smokiez | Base64 | 10 | |
| Lauromar | Structure of AES | 15 | |
| Lauromar | Resisting Bruteforce | 10 | |
| Lauromar | Keyed Permutations | 5 | |
| Lauromar | Transparency | 50 | |
| cryptohack720 | Parameter Injection | 60 | |
| Lauromar | SSH Keys | 35 | |
| jellio04 | JWT Sessions | 10 | |
| Lauromar | CERTainly not | 30 | |
| Lauromar | Privacy-Enhanced Mail? | 25 | |
| cryptohack720 | Deriving Symmetric Keys | 40 | |
| smokiez | Hex | 5 | |
| jellio04 | Token Appreciation | 5 | |
| ggerod | Quadratic Residues | 25 | |
| azkiz | Network Attacks | 5 | |
| meldstorm | Too Honest | 50 | |
| cryptohack720 | Computing Shared Secrets | 30 | |
| alt255 | Manyprime | 40 | |
| smokiez | ASCII | 5 | |
| budyx0 | Finding Flags | 2 | |
| GhostNode | XOR Properties | 15 | |
| GhostNode | XOR Starter | 10 | |
| GhostNode | Bytes and Big Integers | 10 | |
| GhostNode | Base64 | 10 | |
| GhostNode | Hex | 5 | |
| GhostNode | ASCII | 5 | |
| smokiez | Network Attacks | 5 | |
| alt255 | Square Eyes | 35 | |
| quangntenemy | Better than Linear | 85 | |
| NEEL_2006_MONDAL | Round Keys | 20 | |
| GhostNode | Great Snakes | 3 | |
| smokiez | Great Snakes | 3 | |
| GhostNode | Finding Flags | 2 | |
| ghaisan | RSA Decryption | 20 | |
| zhou11 | XOR Starter | 10 | |
| ghaisan | Private Keys | 20 | |
| ghaisan | Euler's Totient | 20 | |
| encrypjim | Forbidden Fruit | 150 | |
| encrypjim | Paper Plane | 120 | |
| ghaisan | Public Keys | 15 | |
| ghaisan | Modular Exponentiation | 10 | |
| encrypjim | Pad Thai | 80 | |
| encrypjim | Oh SNAP | 120 | |
| Sugar_coffee | Bytes and Big Integers | 10 |
You are now level Current level