| Date | User | Challenge | Score |
| LinkZelda | You either know, XOR you don't | 30 | |
| manvin_chager | Resisting Bruteforce | 10 | |
| manvin_chager | Keyed Permutations | 5 | |
| adednile | Passwords as Keys | 50 | |
| LinkZelda | Favourite byte | 20 | |
| NullPointer03 | You either know, XOR you don't | 30 | |
| LinkZelda | XOR Properties | 15 | |
| s5k6y7 | RSA Signatures | 25 | |
| abdullah2077 | Great Snakes | 3 | |
| LinkZelda | XOR Starter | 10 | |
| abdullah2077 | Finding Flags | 2 | |
| LinkZelda | Bytes and Big Integers | 10 | |
| studiocads | Great Snakes | 3 | |
| alright | Logon Zero | 80 | |
| M1D0R1M4 | Resisting Bruteforce | 10 | |
| M1D0R1M4 | Keyed Permutations | 5 | |
| LinkZelda | Base64 | 10 | |
| zyq | Oh SNAP | 120 | |
| adednile | Modes of Operation Starter | 15 | |
| LinkZelda | Hex | 5 | |
| natanpi | Favourite byte | 20 | |
| LinkZelda | ASCII | 5 | |
| LinkZelda | Great Snakes | 3 | |
| LinkZelda | Finding Flags | 2 | |
| studiocads | Finding Flags | 2 | |
| natanpi | Greatest Common Divisor | 15 | |
| Seasonss | Modular Inverting | 25 | |
| Seasonss | Modular Arithmetic 2 | 20 | |
| Seasonss | Modular Arithmetic 1 | 20 | |
| Seasonss | Extended GCD | 20 | |
| s5k6y7 | RSA Decryption | 20 | |
| Seasonss | Greatest Common Divisor | 15 | |
| s5k6y7 | Private Keys | 20 | |
| Seasonss | Lemur XOR | 40 | |
| NullPointer03 | Favourite byte | 20 | |
| JONIPOONI | Base64 | 10 | |
| SamAizen | Great Snakes | 3 | |
| Seasonss | You either know, XOR you don't | 30 | |
| SamAizen | Finding Flags | 2 | |
| Seasonss | Favourite byte | 20 | |
| Narik | ASCII | 5 | |
| Seasonss | XOR Properties | 15 | |
| Seasonss | XOR Starter | 10 | |
| Seasonss | Encoding Challenge | 40 | |
| H34h | XOR Starter | 10 | |
| zyq | Dancing Queen | 120 | |
| H34h | Bytes and Big Integers | 10 | |
| bpaul | Common Ground | 75 | |
| NullPointer03 | XOR Properties | 15 | |
| H34h | Base64 | 10 |
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