| Date | User | Challenge | Score |
| tredfggdf | Bean Counter | 60 | |
| tawfik0x00 | Great Snakes | 3 | |
| EpicDemise | SSH Keys | 35 | |
| tredfggdf | Symmetry | 50 | |
| Benizzel | Structure of AES | 15 | |
| tawfik0x00 | Finding Flags | 2 | |
| EpicDemise | CERTainly not | 30 | |
| tredfggdf | Flipping Cookie | 60 | |
| OsujiWesley | Jack's Birthday Confusion | 30 | |
| LPoulitsis | Extended GCD | 20 | |
| OsujiWesley | Jack's Birthday Hash | 20 | |
| tredfggdf | ECB CBC WTF | 55 | |
| EpicDemise | Privacy-Enhanced Mail? | 25 | |
| tredfggdf | ECB Oracle | 60 | |
| s5k6y7 | Manyprime | 40 | |
| huehuehussain | Adrien's Signs | 80 | |
| Benizzel | Resisting Bruteforce | 10 | |
| Benizzel | Keyed Permutations | 5 | |
| huehuehussain | Common Ground | 75 | |
| alright | Stream of Consciousness | 80 | |
| vini1 | Hex | 5 | |
| lemon22 | Size and Basis | 15 | |
| EpicDemise | Modular Inverting | 25 | |
| huehuehussain | Successive Powers | 60 | |
| EpicDemise | Modular Arithmetic 2 | 20 | |
| studiocads | Hex | 5 | |
| huehuehussain | Chinese Remainder Theorem | 40 | |
| huehuehussain | Modular Square Root | 35 | |
| huehuehussain | Legendre Symbol | 35 | |
| IlhamSec | You either know, XOR you don't | 30 | |
| Benizzel | Modular Binomials | 80 | |
| huehuehussain | Quadratic Residues | 25 | |
| lemon22 | Vectors | 10 | |
| maquuu1809 | Generators of Groups | 20 | |
| tredfggdf | Passwords as Keys | 50 | |
| EpicDemise | Modular Arithmetic 1 | 20 | |
| huehuehussain | Transparency | 50 | |
| huehuehussain | SSH Keys | 35 | |
| tredfggdf | Modes of Operation Starter | 15 | |
| milos315 | Base64 | 10 | |
| huehuehussain | CERTainly not | 30 | |
| huehuehussain | Privacy-Enhanced Mail? | 25 | |
| xseris | LWE High Bits Message | 15 | |
| huehuehussain | Modular Inverting | 25 | |
| laabedmedsami | Crossed Wires | 100 | |
| xseris | Montgomery's Ladder | 40 | |
| vini1 | ASCII | 5 | |
| washer2635 | Digestive | 60 | |
| EpicDemise | Extended GCD | 20 | |
| tredfggdf | Bringing It All Together | 50 |
You are now level Current level