| Date | User | Challenge | Score |
| nhatnguyen | Base64 | 10 | |
| xiaoyuxuan | Public Keys | 15 | |
| xiaoyuxuan | Modular Exponentiation | 10 | |
| etale | Bytes and Big Integers | 10 | |
| xiaoyuxuan | Resisting Bruteforce | 10 | |
| d4sh0326 | You either know, XOR you don't | 30 | |
| xiaoyuxuan | Keyed Permutations | 5 | |
| bluesky2113 | ECB CBC WTF | 55 | |
| OOB1K | Bytes and Big Integers | 10 | |
| nhatnguyen | Hex | 5 | |
| OOB1K | Base64 | 10 | |
| nhatnguyen | ASCII | 5 | |
| OOB1K | Hex | 5 | |
| etale | Base64 | 10 | |
| etale | Hex | 5 | |
| OOB1K | ASCII | 5 | |
| etale | ASCII | 5 | |
| dtfnpEntJEaAvUTd | Hex | 5 | |
| etale | Great Snakes | 3 | |
| OOB1K | Great Snakes | 3 | |
| IronCipher | Hex | 5 | |
| dtfnpEntJEaAvUTd | ASCII | 5 | |
| alexaaaaaa | Jack's Birthday Confusion | 30 | |
| alexaaaaaa | Jack's Birthday Hash | 20 | |
| OOB1K | Finding Flags | 2 | |
| IronCipher | ASCII | 5 | |
| nhatnguyen | Network Attacks | 5 | |
| etale | Finding Flags | 2 | |
| dtfnpEntJEaAvUTd | Great Snakes | 3 | |
| jaylett23 | RSA Signatures | 25 | |
| s1340207 | Extended GCD | 20 | |
| Redribbon | Finding Flags | 2 | |
| abhizen | ASCII | 5 | |
| MayfraylTumbali | Curveball | 100 | |
| IronCipher | Great Snakes | 3 | |
| d4sh0326 | Favourite byte | 20 | |
| abhizen | Great Snakes | 3 | |
| abhizen | Finding Flags | 2 | |
| shreshth44 | Additive | 70 | |
| d4sh0326 | XOR Properties | 15 | |
| shreshth44 | Static Client | 100 | |
| alexaaaaaa | Authentification 1 (Breizh CTF) | 0 | |
| nhatnguyen | Great Snakes | 3 | |
| r3xdj | Curves and Logs | 40 | |
| shreshth44 | Export-grade | 100 | |
| alexaaaaaa | Network Attacks | 5 | |
| alexaaaaaa | Great Snakes | 3 | |
| nhatnguyen | Finding Flags | 2 | |
| alexaaaaaa | Finding Flags | 2 | |
| shreshth44 | Parameter Injection | 60 |
You are now level Current level