| Date | User | Challenge | Score |
| OKlllng | Passwords as Keys | 50 | |
| 123zoo_ | Modular Inverting | 25 | |
| Smuggler | You either know, XOR you don't | 30 | |
| 123zoo_ | Modular Arithmetic 2 | 20 | |
| Smuggler | Favourite byte | 20 | |
| Sadness7 | Jack's Birthday Confusion | 30 | |
| hmd0102 | Triple DES | 60 | |
| Smuggler | XOR Properties | 15 | |
| Sadness7 | Jack's Birthday Hash | 20 | |
| candour | Structure of AES | 15 | |
| A2RU | Twin Keys | 100 | |
| Sagorika | Hex | 5 | |
| Sagorika | ASCII | 5 | |
| crim_x64 | Passwords as Keys | 50 | |
| OKlllng | Modes of Operation Starter | 15 | |
| halliana | Real Curve Crypto | 200 | |
| JvThunder | No Leaks | 100 | |
| Sirine | XOR Starter | 10 | |
| 123zoo_ | Modular Arithmetic 1 | 20 | |
| ExploitX | Let's Decrypt | 80 | |
| Sagorika | Finding Flags | 2 | |
| OKlllng | Bringing It All Together | 50 | |
| mbyte | Pad Thai | 80 | |
| 123zoo_ | Extended GCD | 20 | |
| hmd0102 | Lazy CBC | 60 | |
| SuiChan_wa | Quadratic Residues | 25 | |
| kozibozi | Greatest Common Divisor | 15 | |
| Smuggler | XOR Starter | 10 | |
| 123zoo_ | Greatest Common Divisor | 15 | |
| shhack96 | Triple DES | 60 | |
| genranglnhh | Factoring | 15 | |
| JvThunder | Gotta Go Fast | 40 | |
| JvThunder | Hash Stuffing | 50 | |
| Ba1sars | Extended GCD | 20 | |
| SuiChan_wa | Modular Inverting | 25 | |
| crypticaniket | Great Snakes | 3 | |
| heohak | Modular Binomials | 80 | |
| a_g_e_n_t47 | Base64 | 10 | |
| crim_x64 | Modes of Operation Starter | 15 | |
| ghostframe | Authentification 1 (Breizh CTF) | 0 | |
| mbyte | Oh SNAP | 120 | |
| genranglnhh | RSA Signatures | 25 | |
| antoario | ECB Oracle | 60 | |
| SuiChan_wa | Modular Arithmetic 2 | 20 | |
| SuiChan_wa | Modular Arithmetic 1 | 20 | |
| Miky216 | Quadratic Residues | 25 | |
| shhack96 | Lazy CBC | 60 | |
| starorange | Great Snakes | 3 | |
| a_g_e_n_t47 | Hex | 5 | |
| heohak | Adrien's Signs | 80 |
You are now level Current level