| Date | User | Challenge | Score |
| jrhyne | Public Keys | 15 | |
| cr4ckh34d | ASCII | 5 | |
| jrhyne | Modular Exponentiation | 10 | |
| cr4ckh34d | Great Snakes | 3 | |
| cr4ckh34d | Finding Flags | 2 | |
| Bat_bjj | XOR Properties | 15 | |
| Mujeeb_U_Rehman | Base64 | 10 | |
| Kaoryu | Greatest Common Divisor | 15 | |
| D_Lion | Hex | 5 | |
| D_Lion | ASCII | 5 | |
| P0T | JWT Secrets | 25 | |
| D1533 | André Encoding | 80 | |
| karijas | You either know, XOR you don't | 30 | |
| karijas | Favourite byte | 20 | |
| D_Lion | Great Snakes | 3 | |
| karijas | XOR Properties | 15 | |
| karijas | XOR Starter | 10 | |
| D_Lion | Finding Flags | 2 | |
| DarkinCypher | Modular Arithmetic 2 | 20 | |
| karijas | Bytes and Big Integers | 10 | |
| karijas | Base64 | 10 | |
| karijas | Hex | 5 | |
| Kridari | Great Snakes | 3 | |
| karijas | ASCII | 5 | |
| karijas | Modular Binomials | 80 | |
| Kridari | Finding Flags | 2 | |
| mariotronix | Monoprime | 30 | |
| karijas | Adrien's Signs | 80 | |
| administrator___ | Structure of AES | 15 | |
| karijas | Chinese Remainder Theorem | 40 | |
| karijas | Modular Square Root | 35 | |
| karijas | Legendre Symbol | 35 | |
| karijas | Quadratic Residues | 25 | |
| karijas | Modular Inverting | 25 | |
| karijas | Modular Arithmetic 2 | 20 | |
| karijas | Modular Arithmetic 1 | 20 | |
| karijas | Extended GCD | 20 | |
| karijas | Greatest Common Divisor | 15 | |
| karijas | Network Attacks | 5 | |
| togaee23 | Greatest Common Divisor | 15 | |
| mariotronix | Factoring | 15 | |
| Mellivora | Diffusion through Permutation | 30 | |
| LLC | Quadratic Residues | 25 | |
| karijas | Great Snakes | 3 | |
| copilaba | Base64 | 10 | |
| DarkinCypher | Modular Arithmetic 1 | 20 | |
| Pantine | RSA or HMAC? Part 2 | 100 | |
| Pantine | JWT Secrets | 25 | |
| Pantine | No Way JOSE | 20 | |
| Pantine | JWT Sessions | 10 |
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