| Date | User | Challenge | Score |
| notausername | Transparency | 50 | |
| prt_tm_phlsphr | Great Snakes | 3 | |
| ayanatbb | SSH Keys | 35 | |
| pinkballoons | Decrypting TLS 1.3 | 35 | |
| Cranjuice | Symmetry | 50 | |
| J3sus_Chris | Bytes and Big Integers | 10 | |
| borismalipaard | ASCII | 5 | |
| Ropro12lol | Bytes and Big Integers | 10 | |
| prt_tm_phlsphr | Finding Flags | 2 | |
| borismalipaard | Great Snakes | 3 | |
| ayanatbb | Privacy-Enhanced Mail? | 25 | |
| yoavsasi | Bringing It All Together | 50 | |
| pinkballoons | Decrypting TLS 1.2 | 30 | |
| borismalipaard | Finding Flags | 2 | |
| Red0psD3v4rsh007 | Confusion through Substitution | 25 | |
| notausername | SSH Keys | 35 | |
| ja6ad | Great Snakes | 3 | |
| notausername | CERTainly not | 30 | |
| pinkballoons | Saying Hello | 20 | |
| RAHIM | Modular Arithmetic 2 | 20 | |
| Ropro12lol | Base64 | 10 | |
| notausername | Lemur XOR | 40 | |
| pinkballoons | TLS Handshake | 15 | |
| RAHIM | Modular Arithmetic 1 | 20 | |
| SteinarSL | Round Keys | 20 | |
| whit3g4ndalf | Export-grade | 100 | |
| Ropro12lol | Hex | 5 | |
| LvKNnT | Checkpoint | 150 | |
| pinkballoons | Sharks on the Wire | 10 | |
| 23EC071_LIKITH | You either know, XOR you don't | 30 | |
| kokkalakos | Parameter Injection | 60 | |
| RAHIM | Extended GCD | 20 | |
| Moharam_Essam | You either know, XOR you don't | 30 | |
| Ropro12lol | ASCII | 5 | |
| habi | Adrien's Signs | 80 | |
| pinkballoons | Secure Protocols | 5 | |
| georgeanton4869 | Modular Square Root | 35 | |
| falchion | Crossed Wires | 100 | |
| georgeanton4869 | Legendre Symbol | 35 | |
| SteinarSL | Structure of AES | 15 | |
| Ropro12lol | Great Snakes | 3 | |
| georgeanton4869 | Quadratic Residues | 25 | |
| SteinarSL | Resisting Bruteforce | 10 | |
| baoan | Static Client 2 | 120 | |
| Easy1 | Finding Flags | 2 | |
| Avanish | Greatest Common Divisor | 15 | |
| mr265 | Passwords as Keys | 50 | |
| Ropro12lol | Finding Flags | 2 | |
| SteinarSL | Keyed Permutations | 5 | |
| quocnguyenpa | RSA or HMAC? Part 2 | 100 |
You are now level Current level