| Date | User | Challenge | Score |
| Rugi | RSA Decryption | 20 | |
| talayhan | Nativity | 60 | |
| Rugi | Private Keys | 20 | |
| AngelGuy | You either know, XOR you don't | 30 | |
| paulti | Resisting Bruteforce | 10 | |
| talayhan | Bounded Noise | 50 | |
| paulti | Keyed Permutations | 5 | |
| mjqa02 | PriMeD5 | 100 | |
| vasiliskintis | Great Snakes | 3 | |
| koza1brada | Resisting Bruteforce | 10 | |
| elesquina | ProSign 3 | 100 | |
| koza1brada | Keyed Permutations | 5 | |
| muphilippe | Finding Flags | 2 | |
| Rugi | Euler's Totient | 20 | |
| paulti | Transparency | 50 | |
| BOCO0X | Favourite byte | 20 | |
| cycIes | Finding Flags | 2 | |
| paulti | SSH Keys | 35 | |
| QWXXHSX123 | Base64 | 10 | |
| AngelGuy | Favourite byte | 20 | |
| aloof | Hamiltonicity 2 | 175 | |
| NickZolotas | Favourite byte | 20 | |
| Leprechaun | Modular Inverting | 25 | |
| Antares | Background Reading | 5 | |
| paulti | CERTainly not | 30 | |
| literide | Resisting Bruteforce | 10 | |
| Rugi | Public Keys | 15 | |
| Caracole | Legendre Symbol | 35 | |
| literide | Keyed Permutations | 5 | |
| Rugi | Modular Exponentiation | 10 | |
| gellyfisher | WOTS Up | 75 | |
| AngelGuy | XOR Properties | 15 | |
| QWXXHSX123 | ASCII | 5 | |
| zenyalovebts1306 | XOR Properties | 15 | |
| zenyalovebts1306 | XOR Starter | 10 | |
| sweatyrocket | Greatest Common Multiple (CODEGATE CTF) | 0 | |
| Lef264 | Hex | 5 | |
| AngelGuy | XOR Starter | 10 | |
| _unknwn | Encoding Challenge | 40 | |
| Rugi | Deriving Symmetric Keys | 40 | |
| NickZolotas | XOR Properties | 15 | |
| _unknwn | Bytes and Big Integers | 10 | |
| QWXXHSX123 | Great Snakes | 3 | |
| Rugi | Computing Shared Secrets | 30 | |
| paulti | Privacy-Enhanced Mail? | 25 | |
| _unknwn | Base64 | 10 | |
| Rugi | Computing Public Values | 25 | |
| _unknwn | Hex | 5 | |
| Lef264 | ASCII | 5 | |
| _unknwn | ASCII | 5 |
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