| Date | User | Challenge | Score |
| koukou | ASCII | 5 | |
| koukou | Great Snakes | 3 | |
| liiiu_m_ | RSA Signatures | 25 | |
| the7phantom | ASCII | 5 | |
| fri3m4 | Encoding Challenge | 40 | |
| koukou | Finding Flags | 2 | |
| dusty369289 | Passwords as Keys | 50 | |
| tiser | Greatest Common Divisor | 15 | |
| nghiacblk5 | Computing Shared Secrets | 30 | |
| BigDave007 | Favourite byte | 20 | |
| nghiacblk5 | Deriving Symmetric Keys | 40 | |
| jac0 | Factoring | 15 | |
| agency | Modular Inverting | 25 | |
| no4h | Quadratic Residues | 25 | |
| tiser | You either know, XOR you don't | 30 | |
| liiiu_m_ | RSA Decryption | 20 | |
| twang | Modular Binomials | 80 | |
| sh4d3_r0g | Network Attacks | 5 | |
| beepboopx | Resisting Bruteforce | 10 | |
| UrSourceCode | Modular Arithmetic 2 | 20 | |
| twang | Adrien's Signs | 80 | |
| dusty369289 | Modes of Operation Starter | 15 | |
| liiiu_m_ | Private Keys | 20 | |
| tiser | Favourite byte | 20 | |
| dusty369289 | Bringing It All Together | 50 | |
| Vsevolod_Ishy | Modular Binomials | 80 | |
| Palesword | Favourite byte | 20 | |
| agency | Modular Arithmetic 2 | 20 | |
| tiser | XOR Properties | 15 | |
| twang | Chinese Remainder Theorem | 40 | |
| dusty369289 | Diffusion through Permutation | 30 | |
| Palesword | XOR Properties | 15 | |
| InTime | Bringing It All Together | 50 | |
| hic_restant | Modular Inverting | 25 | |
| liiiu_m_ | Euler's Totient | 20 | |
| agency | Modular Arithmetic 1 | 20 | |
| AureoBytes | XOR Starter | 10 | |
| beepboopx | Keyed Permutations | 5 | |
| liiiu_m_ | Public Keys | 15 | |
| liiiu_m_ | Modular Exponentiation | 10 | |
| dusty369289 | Confusion through Substitution | 25 | |
| agency | Extended GCD | 20 | |
| caisiyu | Export-grade | 100 | |
| caisiyu | Parameter Injection | 60 | |
| caisiyu | Deriving Symmetric Keys | 40 | |
| caisiyu | Computing Shared Secrets | 30 | |
| caisiyu | Computing Public Values | 25 | |
| lemful | Passwords as Keys | 50 | |
| caisiyu | Generators of Groups | 20 | |
| caisiyu | Working with Fields | 10 |
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