| Date | User | Challenge | Score |
| Doku | Fast Primes | 75 | |
| Doku | Marin's Secrets | 50 | |
| rehema321 | Hex | 5 | |
| Doku | Infinite Descent | 50 | |
| Emma2266 | Extended GCD | 20 | |
| Laingameruwu | Deriving Symmetric Keys | 40 | |
| sntt | Favourite byte | 20 | |
| Doku | Endless Emails | 150 | |
| DarkinCypher | RSA Decryption | 20 | |
| rehema321 | ASCII | 5 | |
| Doku | Everything is Still Big | 100 | |
| Doku | Crossed Wires | 100 | |
| Laingameruwu | Computing Shared Secrets | 30 | |
| Doku | Everything is Big | 70 | |
| DarkinCypher | Private Keys | 20 | |
| Doku | Modulus Inutilis | 50 | |
| Doku | Salty | 20 | |
| Doku | Manyprime | 40 | |
| Doku | Square Eyes | 35 | |
| DarkinCypher | Euler's Totient | 20 | |
| sntt | XOR Properties | 15 | |
| Doku | Monoprime | 30 | |
| rehema321 | Great Snakes | 3 | |
| Doku | Inferius Prime | 30 | |
| DarkinCypher | Public Keys | 15 | |
| Laingameruwu | Computing Public Values | 25 | |
| DarkinCypher | Modular Exponentiation | 10 | |
| RuslanP | Great Snakes | 3 | |
| Soisina | Quadratic Residues | 25 | |
| Emma2266 | Greatest Common Divisor | 15 | |
| woodog | XOR Starter | 10 | |
| Laingameruwu | Generators of Groups | 20 | |
| Laingameruwu | Working with Fields | 10 | |
| Laingameruwu | Modulus Inutilis | 50 | |
| fancylake | Great Snakes | 3 | |
| KAVYAS231301 | Finding Flags | 2 | |
| fancylake | Finding Flags | 2 | |
| Laingameruwu | Salty | 20 | |
| peter941221 | XOR Properties | 15 | |
| marsstone | Network Attacks | 5 | |
| Laingameruwu | Manyprime | 40 | |
| sdigs | Export-grade | 100 | |
| SoonOOv | Modes of Operation Starter | 15 | |
| sherlocky7y | Diffusion through Permutation | 30 | |
| Laingameruwu | Monoprime | 30 | |
| SoonOOv | Bringing It All Together | 50 | |
| Laingameruwu | Factoring | 15 | |
| sntt | XOR Starter | 10 | |
| traktor | Diffusion through Permutation | 30 | |
| Emma2266 | You either know, XOR you don't | 30 |
You are now level Current level