| Date | User | Challenge | Score |
| asimsafar | Curves and Logs | 40 | |
| Bartimaeus28 | Lemur XOR | 40 | |
| Koishii | Bytes and Big Integers | 10 | |
| JordanTanev | ASCII | 5 | |
| JKV26 | Great Snakes | 3 | |
| SSGG33 | Finding Flags | 2 | |
| bleh3162 | Great Snakes | 3 | |
| FerdibudiUtomo | Export-grade | 100 | |
| TOOSHY | Network Attacks | 5 | |
| 9mm_memphis_cult | Gotta Go Fast | 40 | |
| ALFADRYAN | RSA Decryption | 20 | |
| FerdibudiUtomo | Parameter Injection | 60 | |
| ALFADRYAN | Private Keys | 20 | |
| bleh3162 | Finding Flags | 2 | |
| ALFADRYAN | Euler's Totient | 20 | |
| llllluguan | Modular Inverting | 25 | |
| Bartimaeus28 | You either know, XOR you don't | 30 | |
| llllluguan | Modular Arithmetic 2 | 20 | |
| wh77 | Triple DES | 60 | |
| TOOSHY | Great Snakes | 3 | |
| ALFADRYAN | Public Keys | 15 | |
| ALFADRYAN | Modular Exponentiation | 10 | |
| asimsafar | Scalar Multiplication | 35 | |
| Xiaoyugan9 | XOR Starter | 10 | |
| asimsafar | Point Addition | 30 | |
| Koishii | Base64 | 10 | |
| Xiaoyugan9 | Bytes and Big Integers | 10 | |
| asimsafar | Point Negation | 10 | |
| wh77 | Lazy CBC | 60 | |
| Koishii | Hex | 5 | |
| MateTeam | Confusion through Substitution | 25 | |
| asimsafar | Background Reading | 5 | |
| NuC0co | Greatest Common Divisor | 15 | |
| llllluguan | Modular Arithmetic 1 | 20 | |
| nous | Too Many Errors | 100 | |
| Koishii | ASCII | 5 | |
| Rivaldi_30 | Export-grade | 100 | |
| yunx1ao | XOR Starter | 10 | |
| Rivaldi_30 | Parameter Injection | 60 | |
| Rivaldi_30 | Deriving Symmetric Keys | 40 | |
| VOSIR | Favourite byte | 20 | |
| Rivaldi_30 | Computing Shared Secrets | 30 | |
| Prince_kumar_43 | Modular Arithmetic 2 | 20 | |
| Rivaldi_30 | Computing Public Values | 25 | |
| Rivaldi_30 | Generators of Groups | 20 | |
| Rivaldi_30 | Working with Fields | 10 | |
| Rivaldi_30 | Modulus Inutilis | 50 | |
| Rivaldi_30 | Salty | 20 | |
| Koishii | Great Snakes | 3 | |
| Xiaoyugan9 | Base64 | 10 |
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