| Date | User | Challenge | Score |
| cheepsss | Stream of Consciousness | 80 | |
| kqtiiv | ASCII | 5 | |
| kqtiiv | Great Snakes | 3 | |
| leonardoLopes | Hex | 5 | |
| gprendi | Extended GCD | 20 | |
| kqtiiv | Finding Flags | 2 | |
| edible_lysol | XOR Starter | 10 | |
| takis848 | Favourite byte | 20 | |
| schoin | Deriving Symmetric Keys | 40 | |
| Blankest1 | Base64 | 10 | |
| Akjo | XOR Starter | 10 | |
| HardxHard | Backpack Cryptography | 120 | |
| darkknight | Favourite byte | 20 | |
| Akjo | Bytes and Big Integers | 10 | |
| AlarmW | Point Negation | 10 | |
| schoin | Computing Shared Secrets | 30 | |
| AlarmW | Background Reading | 5 | |
| edible_lysol | Bytes and Big Integers | 10 | |
| Blankest1 | Hex | 5 | |
| Akjo | Base64 | 10 | |
| schoin | Computing Public Values | 25 | |
| edible_lysol | Base64 | 10 | |
| AlarmW | Deriving Symmetric Keys | 40 | |
| AlarmW | Computing Shared Secrets | 30 | |
| Akjo | Hex | 5 | |
| AlarmW | Computing Public Values | 25 | |
| Senmai | Great Snakes | 3 | |
| AlarmW | Generators of Groups | 20 | |
| AlarmW | Working with Fields | 10 | |
| Akjo | ASCII | 5 | |
| edible_lysol | Hex | 5 | |
| AlarmW | Modulus Inutilis | 50 | |
| Akjo | Great Snakes | 3 | |
| schoin | Generators of Groups | 20 | |
| Akjo | Finding Flags | 2 | |
| edible_lysol | ASCII | 5 | |
| mullins5251 | Finding Flags | 2 | |
| Blankest1 | ASCII | 5 | |
| edible_lysol | Great Snakes | 3 | |
| Blankest1 | Great Snakes | 3 | |
| ValT | ECB CBC WTF | 55 | |
| Blankest1 | Finding Flags | 2 | |
| edible_lysol | Finding Flags | 2 | |
| imbrahiam | Bytes and Big Integers | 10 | |
| schoin | Working with Fields | 10 | |
| leonardoLopes | ASCII | 5 | |
| ansind | ASCII | 5 | |
| nuyu82 | Keyed Permutations | 5 | |
| schoin | Modulus Inutilis | 50 | |
| Roseae | Modes of Operation Starter | 15 |
You are now level Current level