| Date | User | Challenge | Score |
| aleena_meraj | WOTS Up 2 | 90 | |
| omricohen | Modulus Inutilis | 50 | |
| aleena_meraj | WOTS Up | 75 | |
| tarik10 | XOR Starter | 10 | |
| rsilva | Great Snakes | 3 | |
| fotinikonana | Encoding Challenge | 40 | |
| rsilva | Finding Flags | 2 | |
| sangonvi | Finding Flags | 2 | |
| SharjeelChandna | Merkle Trees | 25 | |
| Overflow | Script Kiddie | 70 | |
| SharjeelChandna | Mixed Up | 120 | |
| SharjeelChandna | MD0 | 80 | |
| SharjeelChandna | Hash Stuffing | 50 | |
| SharjeelChandna | Collider | 50 | |
| SharjeelChandna | Jack's Birthday Confusion | 30 | |
| SharjeelChandna | Jack's Birthday Hash | 20 | |
| Yoru_001 | Base64 | 10 | |
| Alex_Asimakis | Encoding Challenge | 40 | |
| SharjeelChandna | The Matrix | 75 | |
| SharjeelChandna | Script Kiddie | 70 | |
| SharjeelChandna | Static Client 2 | 120 | |
| SharjeelChandna | Additive | 70 | |
| SharjeelChandna | Static Client | 100 | |
| SharjeelChandna | Export-grade | 100 | |
| SharjeelChandna | Parameter Injection | 60 | |
| SharjeelChandna | Deriving Symmetric Keys | 40 | |
| mmd1hp | Square Eyes | 35 | |
| SharjeelChandna | Computing Shared Secrets | 30 | |
| SharjeelChandna | Computing Public Values | 25 | |
| SharjeelChandna | Generators of Groups | 20 | |
| SharjeelChandna | Working with Fields | 10 | |
| safwan | Paper Plane | 120 | |
| Leprechaun | Extended GCD | 20 | |
| Kas_d_Attay | ECB CBC WTF | 55 | |
| emmpallis | CERTainly not | 30 | |
| mmd1hp | Monoprime | 30 | |
| fotinikonana | Bytes and Big Integers | 10 | |
| sweatyrocket | Beatboxer | 150 | |
| KingChibbert | Modular Binomials | 80 | |
| p24283mi | JSON in JSON | 40 | |
| mmd1hp | Inferius Prime | 30 | |
| Alex_Asimakis | Bytes and Big Integers | 10 | |
| tarik10 | Bytes and Big Integers | 10 | |
| Yoru_001 | Hex | 5 | |
| sagivb22 | Lemur XOR | 40 | |
| emmpallis | Privacy-Enhanced Mail? | 25 | |
| vsriramv | Backpack Cryptography | 120 | |
| Alex_Asimakis | Base64 | 10 | |
| sakura0503 | Round Keys | 20 | |
| Ridwan1642 | Round Keys | 20 |
You are now level Current level