| Date | User | Challenge | Score |
| NoBirdWasHam | Smithing contest (ECSC 2024 (Italy)) | 0 | |
| Ayushi1 | Vote for Pedro | 150 | |
| Gabsadio | Missing Modulus | 80 | |
| wazza | Modes of Operation Starter | 15 | |
| Holzarim | Bytes and Big Integers | 10 | |
| wazza | Confusion through Substitution | 25 | |
| MateuszMotrenko | Greatest Common Divisor | 15 | |
| m0nc3f3 | Modular Arithmetic 2 | 20 | |
| shaked_srabstein | LWE High Bits Message | 15 | |
| Ayushi1 | Euler's Totient | 20 | |
| binggangan | Base64 | 10 | |
| wazza | Round Keys | 20 | |
| Ayushi1 | Public Keys | 15 | |
| Ayushi1 | Modular Exponentiation | 10 | |
| MateuszMotrenko | Lemur XOR | 40 | |
| gingembre | Finding Flags | 2 | |
| karthiksiky | Round Keys | 20 | |
| sergik | Privacy-Enhanced Mail? | 25 | |
| CypherXploit | You either know, XOR you don't | 30 | |
| CypherXploit | Favourite byte | 20 | |
| MateuszMotrenko | You either know, XOR you don't | 30 | |
| CypherXploit | XOR Properties | 15 | |
| sergik | Jack's Birthday Confusion | 30 | |
| KryptoUser | JWT Secrets | 25 | |
| lchomin | Montgomery's Ladder | 40 | |
| sergik | Jack's Birthday Hash | 20 | |
| sergik | Export-grade | 100 | |
| KryptoUser | Token Appreciation | 5 | |
| KryptoUser | No Way JOSE | 20 | |
| karthiksiky | Structure of AES | 15 | |
| CypherXploit | XOR Starter | 10 | |
| sergik | Parameter Injection | 60 | |
| MateuszMotrenko | Favourite byte | 20 | |
| Exploding_kitten | Great Snakes | 3 | |
| nomo | XOR Properties | 15 | |
| CrankyPants | ProSign 3 | 100 | |
| Githaigaa | Bytes and Big Integers | 10 | |
| Exploding_kitten | Finding Flags | 2 | |
| mpjr | Great Snakes | 3 | |
| mpjr | Finding Flags | 2 | |
| Bob1967dfkz | Structure of AES | 15 | |
| Kate2198 | Finding Flags | 2 | |
| PJ_118 | Modular Arithmetic 1 | 20 | |
| QusaiAbdallah | Network Attacks | 5 | |
| QusaiAbdallah | Great Snakes | 3 | |
| CypherXploit | Bytes and Big Integers | 10 | |
| QusaiAbdallah | Finding Flags | 2 | |
| Ambreen_Ahmed12 | Finding Flags | 2 | |
| PJ_118 | Extended GCD | 20 | |
| shadowwolfcyber | Favourite byte | 20 |
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