| Date | User | Challenge | Score |
| chinmoy_paul | SSH Keys | 35 | |
| glowingcleaver | Hex | 5 | |
| chinmoy_paul | CERTainly not | 30 | |
| shivanshusingh | Structure of AES | 15 | |
| glowingcleaver | ASCII | 5 | |
| glowingcleaver | Great Snakes | 3 | |
| chinmoy_paul | Privacy-Enhanced Mail? | 25 | |
| AndreasK | Finding Flags | 2 | |
| monkeyDluffy | Favourite byte | 20 | |
| jinhokim | Bean Counter | 60 | |
| jackinabox | ASCII | 5 | |
| glowingcleaver | Finding Flags | 2 | |
| chinmoy_paul | Export-grade | 100 | |
| chinmoy_paul | Parameter Injection | 60 | |
| jinhokim | Symmetry | 50 | |
| Ohrorong | Flipping Cookie | 60 | |
| ysjy | Bytes and Big Integers | 10 | |
| shivanshusingh | Resisting Bruteforce | 10 | |
| jinhokim | Lazy CBC | 60 | |
| wwz | Prime and Prejudice | 200 | |
| jinhokim | Flipping Cookie | 60 | |
| shivanshusingh | Keyed Permutations | 5 | |
| jackinabox | Great Snakes | 3 | |
| ValT | Square Eyes | 35 | |
| jackinabox | Finding Flags | 2 | |
| TheAtom | Base64 | 10 | |
| shivanshusingh | Hex | 5 | |
| shivanshusingh | ASCII | 5 | |
| Laniakea24 | Flipping Cookie | 60 | |
| shivanshusingh | Great Snakes | 3 | |
| Anouar404 | Lazy CBC | 60 | |
| MAshq | Greatest Common Divisor | 15 | |
| shivanshusingh | Finding Flags | 2 | |
| MAshq | You either know, XOR you don't | 30 | |
| MAshq | Favourite byte | 20 | |
| MAshq | XOR Properties | 15 | |
| MAshq | XOR Starter | 10 | |
| blippity | Modular Square Root | 35 | |
| MAshq | Bytes and Big Integers | 10 | |
| MAshq | Base64 | 10 | |
| MAshq | Hex | 5 | |
| MAshq | ASCII | 5 | |
| Lena412 | Finding Flags | 2 | |
| TheAtom | Hex | 5 | |
| rotated | Chinese Remainder Theorem | 40 | |
| Ruel | Diffusion through Permutation | 30 | |
| TheAtom | ASCII | 5 | |
| deepsleep | XOR Properties | 15 | |
| wylited | Finding Flags | 2 | |
| rotated | Modular Square Root | 35 |
You are now level Current level