| Date | User | Challenge | Score |
| bashrc | Smooth Criminal | 60 | |
| lowGround | Resisting Bruteforce | 10 | |
| WarSpore | Pairing-Based Cryptography | 50 | |
| twang | Diffusion through Permutation | 30 | |
| lowGround | Keyed Permutations | 5 | |
| lllll | Working with Fields | 10 | |
| regalast | Successive Powers | 60 | |
| lllll | Private Keys | 20 | |
| regalast | Chinese Remainder Theorem | 40 | |
| regalast | Quadratic Residues | 25 | |
| lllll | Euler's Totient | 20 | |
| lllll | Public Keys | 15 | |
| meyadawaganmata | Montgomery's Ladder | 40 | |
| tlasdf | Crossed Wires | 100 | |
| tlasdf | Everything is Big | 70 | |
| nnnhasan20 | Hex | 5 | |
| nnnhasan20 | ASCII | 5 | |
| jaylett23 | Curves and Logs | 40 | |
| tlasdf | Square Eyes | 35 | |
| regalast | Lemur XOR | 40 | |
| hzy | Confusion through Substitution | 25 | |
| regalast | Transparency | 50 | |
| hzy | Round Keys | 20 | |
| nnnhasan20 | Great Snakes | 3 | |
| asepepepe | Modular Arithmetic 2 | 20 | |
| jaylett23 | Scalar Multiplication | 35 | |
| nnnhasan20 | Finding Flags | 2 | |
| hzy | Network Attacks | 5 | |
| koromaki88 | Modular Arithmetic 2 | 20 | |
| chaotic_thought1 | Base64 | 10 | |
| ph4ntom | SSH Keys | 35 | |
| tlasdf | ECB CBC WTF | 55 | |
| regalast | CERTainly not | 30 | |
| regalast | Privacy-Enhanced Mail? | 25 | |
| ph4ntom | CERTainly not | 30 | |
| regalast | SSH Keys | 35 | |
| jaylett23 | Point Addition | 30 | |
| 4AAA4 | Inferius Prime | 30 | |
| ph4ntom | Privacy-Enhanced Mail? | 25 | |
| koromaki88 | Modular Arithmetic 1 | 20 | |
| jaylett23 | Point Negation | 10 | |
| hzy | ZKP Introduction | 5 | |
| jaylett23 | Background Reading | 5 | |
| regalast | Modular Inverting | 25 | |
| regalast | Modular Arithmetic 2 | 20 | |
| regalast | Modular Arithmetic 1 | 20 | |
| regalast | Extended GCD | 20 | |
| regalast | Greatest Common Divisor | 15 | |
| ph4ntom | Modular Inverting | 25 | |
| Emzee | Base64 | 10 |
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