| Date | User | Challenge | Score |
| baka9_73748 | You either know, XOR you don't | 30 | |
| JackClassic | Hex | 5 | |
| myothidahtun | Base64 | 10 | |
| jirapatp | Manyprime | 40 | |
| JackClassic | ZKP Introduction | 5 | |
| LazarusRoss | Hex | 5 | |
| jirapatp | Monoprime | 30 | |
| MichaelJL | Favourite byte | 20 | |
| myothidahtun | Hex | 5 | |
| JoeNgala | Bringing It All Together | 50 | |
| JoeNgala | Diffusion through Permutation | 30 | |
| myothidahtun | ASCII | 5 | |
| jirapatp | Factoring | 15 | |
| jirapatp | RSA Signatures | 25 | |
| savil | Bytes and Big Integers | 10 | |
| myothidahtun | Great Snakes | 3 | |
| purpleColibri | Modular Binomials | 80 | |
| jeydpbb | Resisting Bruteforce | 10 | |
| mohsen | Diffusion through Permutation | 30 | |
| myothidahtun | Finding Flags | 2 | |
| PatriciahMbua | Bean Counter | 60 | |
| Myronarty | Symmetry | 50 | |
| PatriciahMbua | Symmetry | 50 | |
| ddiibra69 | Round Keys | 20 | |
| blueketchup | Find the Lattice | 100 | |
| ddiibra69 | Structure of AES | 15 | |
| PatriciahMbua | Flipping Cookie | 60 | |
| jirapatp | RSA Decryption | 20 | |
| Some_Dude | Finding Flags | 2 | |
| G30 | You either know, XOR you don't | 30 | |
| y0dam4n | Everything is Still Big | 100 | |
| mamouwo | You either know, XOR you don't | 30 | |
| Onyx_ | Bytes and Big Integers | 10 | |
| guy_gart | You either know, XOR you don't | 30 | |
| PatriciahMbua | ECB CBC WTF | 55 | |
| baka9_73748 | Favourite byte | 20 | |
| tihoang09 | Base64 | 10 | |
| mattiabrandon | Elliptic Nodes | 150 | |
| ForJ | Greatest Common Divisor | 15 | |
| MagicLP11 | Chinese Remainder Theorem | 40 | |
| jirapatp | Private Keys | 20 | |
| bu_gye_jeong | ECB CBC WTF | 55 | |
| mamouwo | Favourite byte | 20 | |
| jirapatp | Euler's Totient | 20 | |
| DavidTruong | The Matrix | 75 | |
| tihoang09 | Hex | 5 | |
| mamouwo | XOR Properties | 15 | |
| PatriciahMbua | ECB Oracle | 60 | |
| ltwind_v2 | Hamiltonicity (CryptoHack) | 0 | |
| bu_gye_jeong | Passwords as Keys | 50 |
You are now level Current level