| Date | User | Challenge | Score |
| audreyyyxo | Passwords as Keys | 50 | |
| RussianBotanist | Structure of AES | 15 | |
| FeliciaAgwata | Modes of Operation Starter | 15 | |
| Philip_Mwangi22 | Modes of Operation Starter | 15 | |
| FeliciaAgwata | Bringing It All Together | 50 | |
| audreyyyxo | Modes of Operation Starter | 15 | |
| Obwogi | Resisting Bruteforce | 10 | |
| audreyyyxo | Bringing It All Together | 50 | |
| Mohamed_Abdi | Structure of AES | 15 | |
| Rvsh0x | Base64 | 10 | |
| WhimsicalNarwhal | Encoding Challenge | 40 | |
| xseris | Oracular Spectacular | 150 | |
| audreyyyxo | Diffusion through Permutation | 30 | |
| gaigule33415 | Greatest Common Divisor | 15 | |
| audreyyyxo | Confusion through Substitution | 25 | |
| nikulinon | Bytes and Big Integers | 10 | |
| badru_abdulrahma | Passwords as Keys | 50 | |
| audreyyyxo | Round Keys | 20 | |
| Mohamed_Abdi | Resisting Bruteforce | 10 | |
| Unramified | Base64 | 10 | |
| Mohamed_Abdi | Keyed Permutations | 5 | |
| Obwogi | Keyed Permutations | 5 | |
| Unramified | Hex | 5 | |
| joseluis_solis | You either know, XOR you don't | 30 | |
| gaigule33415 | You either know, XOR you don't | 30 | |
| badru_abdulrahma | Modes of Operation Starter | 15 | |
| audreyyyxo | Structure of AES | 15 | |
| Rvsh0x | Hex | 5 | |
| joseluis_solis | Favourite byte | 20 | |
| audreyyyxo | Resisting Bruteforce | 10 | |
| audreyyyxo | Keyed Permutations | 5 | |
| user123444 | Modes of Operation Starter | 15 | |
| ChristabelAfandi | Bean Counter | 60 | |
| ChristabelAfandi | Symmetry | 50 | |
| lirroyz | XOR Starter | 10 | |
| ChristabelAfandi | Flipping Cookie | 60 | |
| Unramified | ASCII | 5 | |
| ChristabelAfandi | ECB CBC WTF | 55 | |
| RussianBotanist | Resisting Bruteforce | 10 | |
| ChristabelAfandi | ECB Oracle | 60 | |
| Unramified | Great Snakes | 3 | |
| joseluis_solis | XOR Properties | 15 | |
| ChristabelAfandi | Passwords as Keys | 50 | |
| baget | XOR Starter | 10 | |
| baget | Bytes and Big Integers | 10 | |
| Risha | Greatest Common Divisor | 15 | |
| Aradino | Base64 | 10 | |
| mallard | XOR Starter | 10 | |
| Unramified | Finding Flags | 2 | |
| mallard | Bytes and Big Integers | 10 |
You are now level Current level