| Date | User | Challenge | Score |
| ciruzz | ASCII | 5 | |
| baggedtacos | Euler's Totient | 20 | |
| Janek0 | JWT Sessions | 10 | |
| mmzjqx | Modular Inverting | 25 | |
| baggedtacos | Public Keys | 15 | |
| ramszaj513 | Additive | 70 | |
| dan_martins | Generators of Groups | 20 | |
| catalin_munteanu | Structure of AES | 15 | |
| CCcat | Efficient Exchange | 50 | |
| baggedtacos | Modular Exponentiation | 10 | |
| omelet | Roll your Own | 125 | |
| mmzjqx | Modular Arithmetic 2 | 20 | |
| ramszaj513 | Static Client | 100 | |
| baggedtacos | Modular Binomials | 80 | |
| Ankur_macha | Deriving Symmetric Keys | 40 | |
| agilghif | ECB Oracle | 60 | |
| SB112 | Secure Protocols | 5 | |
| jhh0406 | TLS Handshake | 15 | |
| Ankur_macha | Computing Shared Secrets | 30 | |
| Janek0 | Token Appreciation | 5 | |
| Ankur_macha | Computing Public Values | 25 | |
| Ankur_macha | Generators of Groups | 20 | |
| sqv1nx | Quadratic Residues | 25 | |
| ciruzz | Great Snakes | 3 | |
| ramszaj513 | Export-grade | 100 | |
| dan_martins | Jack's Birthday Confusion | 30 | |
| Ankur_macha | Working with Fields | 10 | |
| ciruzz | Finding Flags | 2 | |
| CCcat | Curves and Logs | 40 | |
| Karolina | Salty | 20 | |
| Ankur_macha | Modulus Inutilis | 50 | |
| baggedtacos | Adrien's Signs | 80 | |
| mmzjqx | Modular Arithmetic 1 | 20 | |
| Ankur_macha | Salty | 20 | |
| viktordcrt | Base64 | 10 | |
| Karolina | Manyprime | 40 | |
| Ankur_macha | Manyprime | 40 | |
| Karolina | Square Eyes | 35 | |
| Karolina | Monoprime | 30 | |
| dan_martins | Jack's Birthday Hash | 20 | |
| KOREONE | An Exceptional Twisted Mind | 125 | |
| Karolina | Inferius Prime | 30 | |
| catalin_munteanu | Resisting Bruteforce | 10 | |
| Karolina | RSA Signatures | 25 | |
| catalin_munteanu | Keyed Permutations | 5 | |
| viktordcrt | Network Attacks | 5 | |
| omelet | Modular Binomials | 80 | |
| samdkaushik | Modular Binomials | 80 | |
| sqv1nx | Modular Inverting | 25 | |
| ramszaj513 | Parameter Injection | 60 |
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