| Date | User | Challenge | Score |
| khalifa_niang | Great Snakes | 3 | |
| randomusername_0 | Symmetry | 50 | |
| joko | Great Snakes | 3 | |
| Geekor | You either know, XOR you don't | 30 | |
| Snnyan | Favourite byte | 20 | |
| kefirfermente | Static Client 2 | 120 | |
| randomusername_0 | Flipping Cookie | 60 | |
| Geekor | Favourite byte | 20 | |
| Geekor | XOR Properties | 15 | |
| D1533 | Dancing Queen | 120 | |
| nizugu | Passwords as Keys | 50 | |
| nizugu | Modes of Operation Starter | 15 | |
| nizugu | Bringing It All Together | 50 | |
| nizugu | Diffusion through Permutation | 30 | |
| nizugu | Confusion through Substitution | 25 | |
| nizugu | Round Keys | 20 | |
| nizugu | Structure of AES | 15 | |
| nizugu | Resisting Bruteforce | 10 | |
| nizugu | Keyed Permutations | 5 | |
| khalifa_niang | Finding Flags | 2 | |
| nizugu | Modular Binomials | 80 | |
| flapjack990 | Encoding Challenge | 40 | |
| joko | Finding Flags | 2 | |
| nizugu | Adrien's Signs | 80 | |
| nizugu | Chinese Remainder Theorem | 40 | |
| nizugu | Modular Square Root | 35 | |
| Geekor | XOR Starter | 10 | |
| rjmafoaka | Modular Square Root | 35 | |
| nizugu | Legendre Symbol | 35 | |
| Geekor | Bytes and Big Integers | 10 | |
| ys512 | Extended GCD | 20 | |
| randomusername_0 | ECB CBC WTF | 55 | |
| kefirfermente | Static Client | 100 | |
| rjmafoaka | Legendre Symbol | 35 | |
| katsuchi | Network Attacks | 5 | |
| Cripsov31 | RSA Decryption | 20 | |
| Snacky | Bean Counter | 60 | |
| Cripsov31 | Private Keys | 20 | |
| Cripsov31 | Euler's Totient | 20 | |
| Snacky | Symmetry | 50 | |
| Cripsov31 | Public Keys | 15 | |
| Snacky | Flipping Cookie | 60 | |
| Cripsov31 | Modular Exponentiation | 10 | |
| mamiks | Chinese Remainder Theorem | 40 | |
| Snacky | ECB CBC WTF | 55 | |
| sefimiu | Square Eyes | 35 | |
| Snacky | ECB Oracle | 60 | |
| Brisket9528 | Bean Counter | 60 | |
| sheperd22 | Hex | 5 | |
| WintersMace | Finding Flags | 2 |
You are now level Current level