| Date | User | Challenge | Score |
| PotatoJoe | Base64 | 10 | |
| cepreusa | Transparency | 50 | |
| cepreusa | SSH Keys | 35 | |
| cepreusa | CERTainly not | 30 | |
| cepreusa | Privacy-Enhanced Mail? | 25 | |
| cepreusa | Modular Inverting | 25 | |
| cepreusa | Modular Arithmetic 2 | 20 | |
| cepreusa | Modular Arithmetic 1 | 20 | |
| cepreusa | Extended GCD | 20 | |
| cepreusa | Lemur XOR | 40 | |
| cepreusa | Favourite byte | 20 | |
| cepreusa | You either know, XOR you don't | 30 | |
| cepreusa | Greatest Common Divisor | 15 | |
| x29 | ASCII | 5 | |
| xingchi | Curveball | 100 | |
| Toadytop | Couples | 100 | |
| cepreusa | XOR Properties | 15 | |
| cepreusa | XOR Starter | 10 | |
| PotatoJoe | Hex | 5 | |
| cepreusa | Encoding Challenge | 40 | |
| cepreusa | Bytes and Big Integers | 10 | |
| cepreusa | Base64 | 10 | |
| Mchupakabra | Finding Flags | 2 | |
| PotatoJoe | ASCII | 5 | |
| cepreusa | Hex | 5 | |
| cepreusa | ASCII | 5 | |
| cepreusa | Megalomaniac 3 | 120 | |
| ayoubaitlaarbi | SSH Keys | 35 | |
| avm | No Leaks | 100 | |
| cepreusa | Megalomaniac 2 | 120 | |
| xingchi | Smooth Criminal | 60 | |
| x29 | Great Snakes | 3 | |
| cepreusa | Megalomaniac 1 | 100 | |
| Toadytop | Mister Saplin's Preview | 80 | |
| kkaroly | Passwords as Keys | 50 | |
| xingchi | Montgomery's Ladder | 40 | |
| Saja008 | XOR Starter | 10 | |
| cepreusa | Authenticated Handshake | 40 | |
| xingchi | Efficient Exchange | 50 | |
| cepreusa | Decrypting TLS 1.3 | 35 | |
| cepreusa | Decrypting TLS 1.2 | 30 | |
| cepreusa | Saying Hello | 20 | |
| cepreusa | TLS Handshake | 15 | |
| cepreusa | Sharks on the Wire | 10 | |
| xingchi | Curves and Logs | 40 | |
| PotatoJoe | Great Snakes | 3 | |
| yr81 | No Way Back Home | 100 | |
| cepreusa | RSA or HMAC? Part 2 | 100 | |
| cepreusa | Secure Protocols | 5 | |
| PotatoJoe | Finding Flags | 2 |
You are now level Current level