| Date | User | Challenge | Score |
| Ichrak_essabah | Modular Binomials | 80 | |
| azhariafitria | Transparency | 50 | |
| azhariafitria | SSH Keys | 35 | |
| azhariafitria | CERTainly not | 30 | |
| DedekSaputra | Monoprime | 30 | |
| azhariafitria | Privacy-Enhanced Mail? | 25 | |
| DedekSaputra | Factoring | 15 | |
| azhariafitria | Lemur XOR | 40 | |
| azhariafitria | Encoding Challenge | 40 | |
| DedekSaputra | RSA Signatures | 25 | |
| Ichrak_essabah | Adrien's Signs | 80 | |
| Ewoukouskous | Bytes and Big Integers | 10 | |
| Ewoukouskous | Base64 | 10 | |
| AmitTPB | Collider | 50 | |
| DedekSaputra | RSA Decryption | 20 | |
| Hawaii | Network Attacks | 5 | |
| yasminka | Round Keys | 20 | |
| DedekSaputra | Private Keys | 20 | |
| SAATVIK | No Way Back Home | 100 | |
| DedekSaputra | Euler's Totient | 20 | |
| Ewoukouskous | Hex | 5 | |
| DedekSaputra | Public Keys | 15 | |
| Ewoukouskous | ASCII | 5 | |
| DedekSaputra | Modular Exponentiation | 10 | |
| Ichrak_essabah | Chinese Remainder Theorem | 40 | |
| Ewoukouskous | Great Snakes | 3 | |
| AnonSus | Resisting Bruteforce | 10 | |
| Ewoukouskous | Finding Flags | 2 | |
| AnonSus | Keyed Permutations | 5 | |
| yasminka | Structure of AES | 15 | |
| Ichrak_essabah | Modular Square Root | 35 | |
| Agilprasetyo | Curveball | 100 | |
| DedekSaputra | Export-grade | 100 | |
| DedekSaputra | Parameter Injection | 60 | |
| DedekSaputra | Deriving Symmetric Keys | 40 | |
| DedekSaputra | Computing Shared Secrets | 30 | |
| DedekSaputra | Computing Public Values | 25 | |
| DedekSaputra | Generators of Groups | 20 | |
| DedekSaputra | Working with Fields | 10 | |
| wlalyhappy | Finding Flags | 2 | |
| Ahmedelbehi | RSA or HMAC? | 35 | |
| durje | You either know, XOR you don't | 30 | |
| Ajiww | Crossed Wires | 100 | |
| durje | Favourite byte | 20 | |
| Agilprasetyo | Salty | 20 | |
| Ajiww | Everything is Big | 70 | |
| Ajiww | Modulus Inutilis | 50 | |
| Ajiww | Salty | 20 | |
| Ajiww | Manyprime | 40 | |
| Ajiww | Square Eyes | 35 |
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