| Date | User | Challenge | Score |
| wiz1106 | Inferius Prime | 30 | |
| CrYp7T0 | ASCII | 5 | |
| Rasshaaa | You either know, XOR you don't | 30 | |
| CrYp7T0 | Great Snakes | 3 | |
| Heba_Ajjour | Deriving Symmetric Keys | 40 | |
| Anggita | Adrien's Signs | 80 | |
| wiz1106 | Factoring | 15 | |
| Anggita | Modular Square Root | 35 | |
| Anggita | Legendre Symbol | 35 | |
| Agilprasetyo | Quadratic Residues | 25 | |
| Agilprasetyo | Modular Inverting | 25 | |
| CrYp7T0 | Finding Flags | 2 | |
| Agilprasetyo | Modular Arithmetic 2 | 20 | |
| vivisect0r | Everything is Big | 70 | |
| 4x4x | Hex | 5 | |
| paulaescudero | You either know, XOR you don't | 30 | |
| paulaescudero | Favourite byte | 20 | |
| Fotiemb | XOR Properties | 15 | |
| Shriya_Arun | RSA Decryption | 20 | |
| paulaescudero | XOR Properties | 15 | |
| paulaescudero | XOR Starter | 10 | |
| Heba_Ajjour | Computing Shared Secrets | 30 | |
| paulaescudero | Bytes and Big Integers | 10 | |
| Agilprasetyo | Modular Arithmetic 1 | 20 | |
| paulaescudero | Base64 | 10 | |
| Shriya_Arun | Private Keys | 20 | |
| paulaescudero | Hex | 5 | |
| paulaescudero | ASCII | 5 | |
| Agilprasetyo | Extended GCD | 20 | |
| Shriya_Arun | Euler's Totient | 20 | |
| MayfraylTumbali | Adrien's Signs | 80 | |
| Agilprasetyo | Greatest Common Divisor | 15 | |
| paulaescudero | Great Snakes | 3 | |
| Shriya_Arun | Public Keys | 15 | |
| Shriya_Arun | Modular Exponentiation | 10 | |
| rush_i | Dancing Queen | 120 | |
| Agilprasetyo | You either know, XOR you don't | 30 | |
| paulaescudero | Finding Flags | 2 | |
| rottate | Adrien's Signs | 80 | |
| 4x4x | ASCII | 5 | |
| rottate | Chinese Remainder Theorem | 40 | |
| nordenth | RSA Signatures | 25 | |
| rottate | Modular Square Root | 35 | |
| nordenth | RSA Decryption | 20 | |
| luchen_crypt0 | Adrien's Signs | 80 | |
| nordenth | Private Keys | 20 | |
| nordenth | Euler's Totient | 20 | |
| 4x4x | Great Snakes | 3 | |
| Agilprasetyo | Favourite byte | 20 | |
| nordenth | Public Keys | 15 |
You are now level Current level