| Date | User | Challenge | Score |
| Rasshaaa | Modular Inverting | 25 | |
| whoishe_whoami | Base64 | 10 | |
| lxy6666 | Confusion through Substitution | 25 | |
| zhoumohan | Curves and Logs | 40 | |
| zhoumohan | Scalar Multiplication | 35 | |
| lxy6666 | Round Keys | 20 | |
| zhoumohan | Point Addition | 30 | |
| lxy6666 | Structure of AES | 15 | |
| zhoumohan | Point Negation | 10 | |
| zhoumohan | Background Reading | 5 | |
| whoishe_whoami | Hex | 5 | |
| Katsudon | Working with Fields | 10 | |
| zhoumohan | Computing Shared Secrets | 30 | |
| shreshth44 | Smooth Criminal | 60 | |
| lxy6666 | Resisting Bruteforce | 10 | |
| zhoumohan | Computing Public Values | 25 | |
| lxy6666 | Keyed Permutations | 5 | |
| zhoumohan | Generators of Groups | 20 | |
| zhoumohan | Working with Fields | 10 | |
| Rasshaaa | Modular Arithmetic 2 | 20 | |
| atsadet | You either know, XOR you don't | 30 | |
| sayai | RSA Decryption | 20 | |
| BeneficialKatana | Base64 | 10 | |
| whoishe_whoami | ASCII | 5 | |
| whoishe_whoami | Great Snakes | 3 | |
| whoishe_whoami | Finding Flags | 2 | |
| sayai | Private Keys | 20 | |
| aysesudekrbl | Confusion through Substitution | 25 | |
| sayai | Euler's Totient | 20 | |
| Rasshaaa | Modular Arithmetic 1 | 20 | |
| atsadet | Favourite byte | 20 | |
| zhoumohan | Private Keys | 20 | |
| zhoumohan | Euler's Totient | 20 | |
| aysesudekrbl | Round Keys | 20 | |
| zhoumohan | Public Keys | 15 | |
| Katsudon | Modulus Inutilis | 50 | |
| zhoumohan | Modular Exponentiation | 10 | |
| Katsudon | Salty | 20 | |
| aysesudekrbl | Structure of AES | 15 | |
| BeneficialKatana | Hex | 5 | |
| Katsudon | Manyprime | 40 | |
| nordenth | Export-grade | 100 | |
| zhoumohan | Modes of Operation Starter | 15 | |
| nordenth | Parameter Injection | 60 | |
| nordenth | Deriving Symmetric Keys | 40 | |
| fangkhao15 | Modular Square Root | 35 | |
| fk | Monoprime | 30 | |
| nordenth | Computing Shared Secrets | 30 | |
| atsadet | XOR Properties | 15 | |
| nordenth | Computing Public Values | 25 |
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