| Date | User | Challenge | Score |
| Dr1o02 | Secure Protocols | 5 | |
| pwnthegame | Modular Inverting | 25 | |
| rapt00r | Oh SNAP | 120 | |
| pwnthegame | Modular Arithmetic 2 | 20 | |
| Dwiki | You either know, XOR you don't | 30 | |
| pwnthegame | Modular Arithmetic 1 | 20 | |
| pwnthegame | Extended GCD | 20 | |
| susanto | Bringing It All Together | 50 | |
| DhamoZx | Public Keys | 15 | |
| susanto | Diffusion through Permutation | 30 | |
| pwnthegame | Greatest Common Divisor | 15 | |
| susanto | Confusion through Substitution | 25 | |
| AbubuerT | Monoprime | 30 | |
| susanto | Round Keys | 20 | |
| pwnthegame | Lemur XOR | 40 | |
| AbubuerT | Factoring | 15 | |
| susanto | Structure of AES | 15 | |
| TBen | Finding Flags | 2 | |
| DhamoZx | Modular Exponentiation | 10 | |
| susanto | Transparency | 50 | |
| ISKANDARLAN | Let's Decrypt | 80 | |
| AbubuerT | RSA Signatures | 25 | |
| susanto | SSH Keys | 35 | |
| AbubuerT | RSA Decryption | 20 | |
| AbubuerT | Private Keys | 20 | |
| ISKANDARLAN | Transparency | 50 | |
| ISKANDARLAN | SSH Keys | 35 | |
| AbubuerT | Euler's Totient | 20 | |
| ISKANDARLAN | CERTainly not | 30 | |
| ISKANDARLAN | Privacy-Enhanced Mail? | 25 | |
| AbubuerT | Public Keys | 15 | |
| Dwiki | Favourite byte | 20 | |
| AbubuerT | Modular Exponentiation | 10 | |
| minshay | Generators of Groups | 20 | |
| susanto | CERTainly not | 30 | |
| Dwiki | XOR Properties | 15 | |
| pwnthegame | You either know, XOR you don't | 30 | |
| whyditcom | Gotta Go Fast | 40 | |
| AbubuerT | Bringing It All Together | 50 | |
| ISKANDARLAN | Static Client 2 | 120 | |
| ISKANDARLAN | Additive | 70 | |
| ISKANDARLAN | Static Client | 100 | |
| ISKANDARLAN | Export-grade | 100 | |
| ISKANDARLAN | Parameter Injection | 60 | |
| ISKANDARLAN | Deriving Symmetric Keys | 40 | |
| ISKANDARLAN | Computing Shared Secrets | 30 | |
| pwnthegame | Favourite byte | 20 | |
| ISKANDARLAN | Computing Public Values | 25 | |
| AbubuerT | Diffusion through Permutation | 30 | |
| Dwiki | XOR Starter | 10 |
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