| Date | User | Challenge | Score |
| PRANESWAR | Quadratic Residues | 25 | |
| divi_69 | RSA Decryption | 20 | |
| divi_69 | Private Keys | 20 | |
| PRANESWAR | Modular Inverting | 25 | |
| rahulsd042007 | Modular Arithmetic 1 | 20 | |
| divi_69 | Euler's Totient | 20 | |
| Mikayn | Bean Counter | 60 | |
| GOWRISHANKAR_P | Adrien's Signs | 80 | |
| smilelu | Modular Arithmetic 2 | 20 | |
| divi_69 | Public Keys | 15 | |
| PRANESWAR | Modular Arithmetic 2 | 20 | |
| divi_69 | Modular Exponentiation | 10 | |
| Avinash09 | Chinese Remainder Theorem | 40 | |
| muthuram_326 | Modular Square Root | 35 | |
| rahulsd042007 | Extended GCD | 20 | |
| provicy | Quadratic Residues | 25 | |
| GOWRISHANKAR_P | Chinese Remainder Theorem | 40 | |
| PRANESWAR | Modular Arithmetic 1 | 20 | |
| GOWRISHANKAR_P | Modular Square Root | 35 | |
| PRANESWAR | Extended GCD | 20 | |
| muthuram_326 | Legendre Symbol | 35 | |
| PRANESWAR | Greatest Common Divisor | 15 | |
| provicy | Modular Inverting | 25 | |
| Avinash09 | Quadratic Residues | 25 | |
| RAGHUL_S | Round Keys | 20 | |
| VishalSR | Finding Flags | 2 | |
| muthuram_326 | Quadratic Residues | 25 | |
| provicy | Modular Arithmetic 2 | 20 | |
| Sanjeev | Hex | 5 | |
| PRANESWAR | You either know, XOR you don't | 30 | |
| RAGHUL_S | Confusion through Substitution | 25 | |
| PRANESWAR | Favourite byte | 20 | |
| Sanjeev | ASCII | 5 | |
| provicy | Modular Arithmetic 1 | 20 | |
| PRANESWAR | XOR Properties | 15 | |
| PRANESWAR | XOR Starter | 10 | |
| Sanjeev | Finding Flags | 2 | |
| Avinash09 | Modular Inverting | 25 | |
| Avinash09 | Modular Arithmetic 2 | 20 | |
| hakka52 | Three Isogenies | 35 | |
| Avinash09 | Modular Arithmetic 1 | 20 | |
| Avinash09 | Extended GCD | 20 | |
| Avinash09 | Greatest Common Divisor | 15 | |
| provicy | Extended GCD | 20 | |
| PRANESWAR | Bytes and Big Integers | 10 | |
| SnBork | Quadratic Residues | 25 | |
| RAGHUL_S | Diffusion through Permutation | 30 | |
| PRANESWAR | Base64 | 10 | |
| Linda_JMXS | ASCII | 5 | |
| provicy | Greatest Common Divisor | 15 |
You are now level Current level