| Date | User | Challenge | Score |
| titideptrai | Structure of AES | 15 | |
| kzzm | Privacy-Enhanced Mail? | 25 | |
| eytangut | Flipping Cookie | 60 | |
| ali125 | Greatest Common Divisor | 15 | |
| Meen4 | Triple DES | 60 | |
| ayalh123 | Round Keys | 20 | |
| ymoe3 | Lazy CBC | 60 | |
| sheina906 | Lazy CBC | 60 | |
| huli07 | Bean Counter | 60 | |
| tamarass | Modes of Operation Starter | 15 | |
| liem2008 | Bytes and Big Integers | 10 | |
| Fox2872 | Passwords as Keys | 50 | |
| yoav_s | Additive | 70 | |
| NadavIsraeli | ECB CBC WTF | 55 | |
| aboltus | Round Keys | 20 | |
| titideptrai | Resisting Bruteforce | 10 | |
| Liamfabr | Bringing It All Together | 50 | |
| yoav_s | Static Client | 100 | |
| titideptrai | Keyed Permutations | 5 | |
| Anonymous01 | Favourite byte | 20 | |
| AeroSol | Bit by Bit | 100 | |
| vivi_01 | Great Snakes | 3 | |
| ariel07 | Bringing It All Together | 50 | |
| qazxiqmh | XOR Properties | 15 | |
| vivi_01 | Finding Flags | 2 | |
| liem2008 | Privacy-Enhanced Mail? | 25 | |
| cryptocrasher | Passwords as Keys | 50 | |
| sheina906 | Flipping Cookie | 60 | |
| liya | Confusion through Substitution | 25 | |
| sveta_shumovai | Everything is Big | 70 | |
| maya325shed1 | SSH Keys | 35 | |
| kjhgzsd | Great Snakes | 3 | |
| Huyyeuthu2104 | Crossed Wires | 100 | |
| whale120 | A True Genus | 175 | |
| kjhgzsd | Finding Flags | 2 | |
| tamarass | Round Keys | 20 | |
| sheina906 | ECB Oracle | 60 | |
| Anonymous01 | XOR Properties | 15 | |
| yoav_s | Export-grade | 100 | |
| Meirm320 | Passwords as Keys | 50 | |
| ayalh123 | Structure of AES | 15 | |
| NadavIsraeli | Passwords as Keys | 50 | |
| Babananana | Quadratic Residues | 25 | |
| Babananana | Successive Powers | 60 | |
| Babananana | Chinese Remainder Theorem | 40 | |
| Liamfabr | Diffusion through Permutation | 30 | |
| yoav_s | Parameter Injection | 60 | |
| oslash | Export-grade | 100 | |
| Fox2872 | SSH Keys | 35 | |
| Anonymous01 | XOR Starter | 10 |
You are now level Current level