| Date | User | Challenge | Score |
| PERSON | Finding Flags | 2 | |
| 4kg_p4bl0 | Bytes and Big Integers | 10 | |
| vim_diesel | Modular Binomials | 80 | |
| Z0R0 | Bytes and Big Integers | 10 | |
| 2976942164 | Lazy CBC | 60 | |
| 2976942164 | Flipping Cookie | 60 | |
| 2976942164 | ECB Oracle | 60 | |
| 4kg_p4bl0 | Base64 | 10 | |
| 2976942164 | ECB CBC WTF | 55 | |
| 2976942164 | Passwords as Keys | 50 | |
| labcoxyzl | Beatboxer | 150 | |
| labcoxyzl | Oh SNAP | 120 | |
| 2976942164 | Modes of Operation Starter | 15 | |
| 2976942164 | Bringing It All Together | 50 | |
| 2976942164 | Diffusion through Permutation | 30 | |
| 2976942164 | Confusion through Substitution | 25 | |
| 2976942164 | Round Keys | 20 | |
| 2976942164 | Structure of AES | 15 | |
| Z0R0 | Base64 | 10 | |
| hakka52 | Jeff's LFSR | 150 | |
| Z0R0 | Hex | 5 | |
| 4kg_p4bl0 | Hex | 5 | |
| kakobtg | Factoring | 15 | |
| Z0R0 | ASCII | 5 | |
| kakobtg | RSA Signatures | 25 | |
| Z0R0 | Great Snakes | 3 | |
| 4kg_p4bl0 | ASCII | 5 | |
| 4kg_p4bl0 | Great Snakes | 3 | |
| 4PT17 | Finding Flags | 2 | |
| labcoxyzl | The Good, The Pad, The Ugly | 100 | |
| feleciaz | Lemur XOR | 40 | |
| DonAsako | RSA Backdoor Viability | 175 | |
| rootBG | Background Reading | 5 | |
| trident | Greatest Common Divisor | 15 | |
| 4kg_p4bl0 | Finding Flags | 2 | |
| InTime | Fast Primes | 75 | |
| trident | You either know, XOR you don't | 30 | |
| labcoxyzl | Logon Zero | 80 | |
| giardinodecorati | Curveball | 100 | |
| JGaspar | CTRIME | 70 | |
| DonAsako | Ron was Wrong, Whit is Right | 90 | |
| labcoxyzl | Pad Thai | 80 | |
| saro | Nativity | 60 | |
| trident | Favourite byte | 20 | |
| solidus | Ellipse Curve Cryptography | 125 | |
| labcoxyzl | Forbidden Fruit | 150 | |
| labcoxyzl | Paper Plane | 120 | |
| trident | XOR Properties | 15 | |
| KernelMatrix | Modular Inverting | 25 | |
| feleciaz | You either know, XOR you don't | 30 |
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