| Date | User | Challenge | Score |
| zafa | CERTainly not | 30 | |
| Zacherang | ASCII | 5 | |
| Samson2011 | ASCII | 5 | |
| YYMMX | Generators of Groups | 20 | |
| YYMMX | Working with Fields | 10 | |
| desiasd | Round Keys | 20 | |
| DeViator | Modular Arithmetic 2 | 20 | |
| Zacherang | Finding Flags | 2 | |
| Samson2011 | Finding Flags | 2 | |
| zafa | Modular Inverting | 25 | |
| zafa | Privacy-Enhanced Mail? | 25 | |
| Samson2011 | Public Keys | 15 | |
| Samson2011 | Modular Exponentiation | 10 | |
| m4n059 | Stream of Consciousness | 80 | |
| zafa | Modular Arithmetic 2 | 20 | |
| zafa | Modular Arithmetic 1 | 20 | |
| Duckart | Broken RSA | 100 | |
| zafa | Extended GCD | 20 | |
| Ky_rie12 | Curveball | 100 | |
| zafa | Greatest Common Divisor | 15 | |
| YYMMX | Public Keys | 15 | |
| zafa | XOR Starter | 10 | |
| ngawipride67 | Crossed Wires | 100 | |
| YYMMX | Modular Exponentiation | 10 | |
| zafa | Encoding Challenge | 40 | |
| Moreno_Mozza_P | Pad Thai | 80 | |
| shadow_dune | Modular Binomials | 80 | |
| ArdorBlossom | Deriving Symmetric Keys | 40 | |
| Ky_rie12 | Smooth Criminal | 60 | |
| Moreno_Mozza_P | Oh SNAP | 120 | |
| Ky_rie12 | Montgomery's Ladder | 40 | |
| Janpratts | Symmetry | 50 | |
| Moreno_Mozza_P | Dancing Queen | 120 | |
| Ky_rie12 | Efficient Exchange | 50 | |
| Janpratts | Flipping Cookie | 60 | |
| Moreno_Mozza_P | Stream of Consciousness | 80 | |
| Ky_rie12 | Curves and Logs | 40 | |
| Janpratts | ECB CBC WTF | 55 | |
| Moreno_Mozza_P | Logon Zero | 80 | |
| Ky_rie12 | Scalar Multiplication | 35 | |
| Janpratts | ECB Oracle | 60 | |
| Asus | Finding Flags | 2 | |
| ArdorBlossom | Computing Shared Secrets | 30 | |
| RotaJakiro | Moving Problems | 150 | |
| Fikhtengoltz | Quadratic Residues | 25 | |
| tortoiseseadonut | Manyprime | 40 | |
| Moreno_Mozza_P | CTRIME | 70 | |
| Moreno_Mozza_P | Bean Counter | 60 | |
| DarkDragon_sec | Greatest Common Divisor | 15 | |
| Moreno_Mozza_P | Symmetry | 50 |
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