| Date | User | Challenge | Score |
| Diego120 | Bytes and Big Integers | 10 | |
| YEQX67 | Round Keys | 20 | |
| useless | Structure of AES | 15 | |
| 0xbadb100d | XOR Properties | 15 | |
| athinasiakantari | Greatest Common Divisor | 15 | |
| gim | Confusion through Substitution | 25 | |
| YuTrere | Bytes and Big Integers | 10 | |
| noramvi | Let's Decrypt | 80 | |
| adios | Base64 | 10 | |
| temmavn | From Private to Public Key LWE | 25 | |
| Anna_skarlatou | Private Keys | 20 | |
| YEQX67 | Structure of AES | 15 | |
| adios | Hex | 5 | |
| YuTrere | Base64 | 10 | |
| adios | ASCII | 5 | |
| useless | Resisting Bruteforce | 10 | |
| adios | Great Snakes | 3 | |
| nonAIrevenge | Keyed Permutations | 5 | |
| adios | Finding Flags | 2 | |
| YuTrere | Hex | 5 | |
| useless | Keyed Permutations | 5 | |
| maxw44266 | Greatest Common Divisor | 15 | |
| MarBol | XOR Properties | 15 | |
| YuTrere | ASCII | 5 | |
| AliosPBC | Modular Inverting | 25 | |
| temmavn | LWE Low Bits Message | 20 | |
| Hell_ish | Efficient Exchange | 50 | |
| YuTrere | Network Attacks | 5 | |
| maxw44266 | You either know, XOR you don't | 30 | |
| NewZky | Bytes and Big Integers | 10 | |
| AliosPBC | Modular Arithmetic 2 | 20 | |
| skye_tan | Fast Primes | 75 | |
| yassinebad | CERTainly not | 30 | |
| jominom | XOR Starter | 10 | |
| AliosPBC | Modular Arithmetic 1 | 20 | |
| gim | Round Keys | 20 | |
| YuTrere | Great Snakes | 3 | |
| maxw44266 | Favourite byte | 20 | |
| YuTrere | Finding Flags | 2 | |
| Anna_skarlatou | Euler's Totient | 20 | |
| shianchin | ECB CBC WTF | 55 | |
| noramvi | Curveball | 100 | |
| Klaudia | Modular Binomials | 80 | |
| gim | Structure of AES | 15 | |
| Anna_skarlatou | Public Keys | 15 | |
| athinasiakantari | XOR Starter | 10 | |
| washer2635 | Marin's Secrets | 50 | |
| 100050 | Manyprime | 40 | |
| tmkyd | Factoring | 15 | |
| tmkyd | RSA Signatures | 25 |
You are now level Current level