| Date | User | Challenge | Score |
| Hansi | Point Negation | 10 | |
| ishan123 | RSA Decryption | 20 | |
| ishan123 | Private Keys | 20 | |
| Hansi | Background Reading | 5 | |
| ishan123 | Euler's Totient | 20 | |
| negi | Chinese Remainder Theorem | 40 | |
| ishan123 | Public Keys | 15 | |
| ishan123 | Modular Exponentiation | 10 | |
| ishan123 | Modular Binomials | 80 | |
| haha789 | Base64 | 10 | |
| negi | Modular Square Root | 35 | |
| ziebrahh | Extended GCD | 20 | |
| ishan123 | Adrien's Signs | 80 | |
| negi | Legendre Symbol | 35 | |
| ishan123 | Chinese Remainder Theorem | 40 | |
| haha789 | Hex | 5 | |
| ishan123 | Modular Square Root | 35 | |
| Chinebot | Greatest Common Divisor | 15 | |
| negi | Quadratic Residues | 25 | |
| naivecat | Greatest Common Divisor | 15 | |
| negi | Modular Inverting | 25 | |
| ishan123 | Legendre Symbol | 35 | |
| bitazar | Marin's Secrets | 50 | |
| negi | Modular Arithmetic 2 | 20 | |
| ziebrahh | Greatest Common Divisor | 15 | |
| Chinebot | Lemur XOR | 40 | |
| haha789 | ASCII | 5 | |
| negi | Modular Arithmetic 1 | 20 | |
| bitazar | Endless Emails | 150 | |
| ishan123 | Quadratic Residues | 25 | |
| bitazar | Infinite Descent | 50 | |
| ishan123 | Modular Inverting | 25 | |
| negi | Extended GCD | 20 | |
| ishan123 | Modular Arithmetic 2 | 20 | |
| negi | Greatest Common Divisor | 15 | |
| ishan123 | Modular Arithmetic 1 | 20 | |
| ishan123 | Extended GCD | 20 | |
| ishan123 | Greatest Common Divisor | 15 | |
| ishan123 | You either know, XOR you don't | 30 | |
| ishan123 | Favourite byte | 20 | |
| ishan123 | XOR Properties | 15 | |
| ishan123 | XOR Starter | 10 | |
| ishan123 | Bytes and Big Integers | 10 | |
| ishan123 | Base64 | 10 | |
| ishan123 | Hex | 5 | |
| sidarthnatarajan | Resisting Bruteforce | 10 | |
| sidarthnatarajan | Keyed Permutations | 5 | |
| ishan123 | ASCII | 5 | |
| ishan123 | Great Snakes | 3 | |
| sidarthnatarajan | Chinese Remainder Theorem | 40 |
You are now level Current level