| Date | User | Challenge | Score |
| srhh | Extended GCD | 20 | |
| 0xGh4zy | Confusion through Substitution | 25 | |
| aliya | Structure of AES | 15 | |
| B00177171 | Everything is Big | 70 | |
| safwan | Mixed Up | 120 | |
| retiredloverboy | Base64 | 10 | |
| AP | Bytes and Big Integers | 10 | |
| B00177171 | Modulus Inutilis | 50 | |
| retiredloverboy | Hex | 5 | |
| ra_mn | Modular Arithmetic 1 | 20 | |
| Saschatouille | Too Many Errors | 100 | |
| retiredloverboy | ASCII | 5 | |
| B00177171 | Salty | 20 | |
| anchi1228 | Diffusion through Permutation | 30 | |
| aliya | Public Keys | 15 | |
| aliya | Modular Exponentiation | 10 | |
| Showkara | Hamiltonicity 2 | 175 | |
| adelinhojda | Extended GCD | 20 | |
| zipill | Chinese Remainder Theorem | 40 | |
| silentRoar | Curves and Logs | 40 | |
| Baeco | Checkpoint | 150 | |
| Yord2 | You either know, XOR you don't | 30 | |
| Yord2 | Favourite byte | 20 | |
| osihlovec | LWE Background | 5 | |
| aliya | Chinese Remainder Theorem | 40 | |
| c4bestan | Favourite byte | 20 | |
| aliya | Modular Square Root | 35 | |
| aliya | Legendre Symbol | 35 | |
| Panzeriv | Gaussian Reduction | 50 | |
| aliya | Quadratic Residues | 25 | |
| aliya | Modular Inverting | 25 | |
| aliya | Modular Arithmetic 2 | 20 | |
| aliya | Modular Arithmetic 1 | 20 | |
| aliya | Extended GCD | 20 | |
| aliya | Greatest Common Divisor | 15 | |
| Ah_Error | Structure of AES | 15 | |
| fuwuqi | Finding Flags | 2 | |
| Parag | Manyprime | 40 | |
| nurminen | Checkpoint | 150 | |
| c4bestan | XOR Properties | 15 | |
| zipill | Modular Square Root | 35 | |
| ved_007 | Exceptional Curves | 100 | |
| ZOROfofo | Finding Flags | 2 | |
| silentRoar | Scalar Multiplication | 35 | |
| Ethan06 | ASCII | 5 | |
| ahmqd | Logon Zero | 80 | |
| B00177171 | Paper Plane | 120 | |
| expired | Favourite byte | 20 | |
| Ah_Error | Resisting Bruteforce | 10 | |
| anchi1228 | Confusion through Substitution | 25 |
You are now level Current level