| Date | User | Challenge | Score |
| leodavinci0591 | Round Keys | 20 | |
| Kotoha | Modular Binomials | 80 | |
| znur | Endless Emails | 150 | |
| bl4nkyy | Modular Binomials | 80 | |
| spesk | Modular Square Root | 35 | |
| nwal | Quadratic Residues | 25 | |
| leodavinci0591 | Structure of AES | 15 | |
| NitroN | Curves and Logs | 40 | |
| quantum_hog | Finding Flags | 2 | |
| Morticiaxx | Transparency | 50 | |
| crystaljade | Working with Fields | 10 | |
| papamitaa | You either know, XOR you don't | 30 | |
| Kotoha | Modular Square Root | 35 | |
| NitroN | Scalar Multiplication | 35 | |
| nwal | Modular Inverting | 25 | |
| leodavinci0591 | Resisting Bruteforce | 10 | |
| znur | Everything is Still Big | 100 | |
| papamitaa | Bytes and Big Integers | 10 | |
| stpt | The Matrix | 75 | |
| stpt | Script Kiddie | 70 | |
| zetelen | Bringing It All Together | 50 | |
| salimrashid_1 | You either know, XOR you don't | 30 | |
| Morticiaxx | SSH Keys | 35 | |
| leodavinci0591 | Keyed Permutations | 5 | |
| NitroN | Point Addition | 30 | |
| salimrashid_1 | Favourite byte | 20 | |
| salimrashid_1 | XOR Properties | 15 | |
| M2urya | You either know, XOR you don't | 30 | |
| salimrashid_1 | XOR Starter | 10 | |
| leodavinci0591 | Modular Binomials | 80 | |
| see0 | Round Keys | 20 | |
| salimrashid_1 | Bytes and Big Integers | 10 | |
| Morticiaxx | CERTainly not | 30 | |
| Morticiaxx | Privacy-Enhanced Mail? | 25 | |
| M2urya | Favourite byte | 20 | |
| M2urya | XOR Properties | 15 | |
| M2urya | XOR Starter | 10 | |
| M2urya | Bytes and Big Integers | 10 | |
| M2urya | Base64 | 10 | |
| RonnieKipkoech | Bytes and Big Integers | 10 | |
| salimrashid_1 | Base64 | 10 | |
| see0 | Structure of AES | 15 | |
| EnesBasmaci | RSA Decryption | 20 | |
| papamitaa | Favourite byte | 20 | |
| annalisa | Gram Schmidt | 30 | |
| XenoSponge | Exceptional Curves | 100 | |
| papamitaa | XOR Properties | 15 | |
| ZacLawliet | Base64 | 10 | |
| salimrashid_1 | Hex | 5 | |
| papamitaa | XOR Starter | 10 |
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