| Date | User | Challenge | Score |
| notausername | What's a Lattice? | 40 | |
| Eiriew | Hex | 5 | |
| Ropro12lol | Greatest Common Divisor | 15 | |
| notausername | Gram Schmidt | 30 | |
| Ropro12lol | You either know, XOR you don't | 30 | |
| engman | Privacy-Enhanced Mail? | 25 | |
| LoftyCheese | Base64 | 10 | |
| Moharam_Essam | Network Attacks | 5 | |
| LoftyCheese | Hex | 5 | |
| Ropro12lol | Favourite byte | 20 | |
| Ropro12lol | XOR Properties | 15 | |
| notausername | Size and Basis | 15 | |
| notausername | Vectors | 10 | |
| Ropro12lol | XOR Starter | 10 | |
| lostexistence | PriMeD5 | 100 | |
| Murtada_1M8 | Structure of AES | 15 | |
| Cranjuice | Bean Counter | 60 | |
| Moharam_Essam | Great Snakes | 3 | |
| prt_tm_phlsphr | Base64 | 10 | |
| notausername | Encoding Challenge | 40 | |
| whit3g4ndalf | Scalar Multiplication | 35 | |
| Moharam_Essam | ASCII | 5 | |
| cryptitcrypthat | Finding Flags | 2 | |
| prt_tm_phlsphr | Hex | 5 | |
| Moharam_Essam | Hex | 5 | |
| whit3g4ndalf | Point Addition | 30 | |
| J3sus_Chris | Encoding Challenge | 40 | |
| Moharam_Essam | Base64 | 10 | |
| ayanatbb | Transparency | 50 | |
| 8l4nk | Hamiltonicity 2 (CryptoHack) | 0 | |
| 8l4nk | Hamiltonicity 2 | 175 | |
| SteinarSL | Confusion through Substitution | 25 | |
| RAHIM | Modular Inverting | 25 | |
| 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 |
You are now level Current level