| Date | User | Challenge | Score |
| vcvttsd2si | Bytes and Big Integers | 10 | |
| nhatnguyen | Bytes and Big Integers | 10 | |
| RomanSt | Moving Problems | 150 | |
| Seanwillis1 | You either know, XOR you don't | 30 | |
| wwz | Noise Cheap | 90 | |
| Seanwillis1 | Favourite byte | 20 | |
| Seanwillis1 | XOR Properties | 15 | |
| Seanwillis1 | XOR Starter | 10 | |
| Seanwillis1 | Bytes and Big Integers | 10 | |
| Seanwillis1 | Hex | 5 | |
| Seanwillis1 | ASCII | 5 | |
| vcvttsd2si | Base64 | 10 | |
| Seanwillis1 | Great Snakes | 3 | |
| vcvttsd2si | Hex | 5 | |
| vcvttsd2si | ASCII | 5 | |
| Seanwillis1 | Finding Flags | 2 | |
| vcvttsd2si | Great Snakes | 3 | |
| The_cryptic | Chinese Remainder Theorem | 40 | |
| vcvttsd2si | Finding Flags | 2 | |
| The_cryptic | Modular Square Root | 35 | |
| Jup1ng | Great Snakes | 3 | |
| Musca | Signing Server | 60 | |
| Jup1ng | Finding Flags | 2 | |
| Ahmedelbehi | Saying Hello | 20 | |
| NguyenNK | LWE Intro | 10 | |
| NguyenNK | LWE Background | 5 | |
| VeirHannon | Montgomery's Ladder | 40 | |
| Musca | Everything is Still Big | 100 | |
| wwz | Too Many Errors | 100 | |
| cepreusa | Invariant | 250 | |
| cepreusa | Mixed Up | 120 | |
| Magko | Finding Flags | 2 | |
| qwra | Manyprime | 40 | |
| VeirHannon | Efficient Exchange | 50 | |
| wwz | Find the Lattice | 100 | |
| VeirHannon | Curves and Logs | 40 | |
| VeirHannon | Scalar Multiplication | 35 | |
| VeirHannon | Point Addition | 30 | |
| VeirHannon | Point Negation | 10 | |
| VeirHannon | Background Reading | 5 | |
| VeirHannon | Export-grade | 100 | |
| xianggenglihai | Greatest Common Divisor | 15 | |
| VeirHannon | Parameter Injection | 60 | |
| twistedwheel | Modes of Operation Starter | 15 | |
| regalast | CTRIME | 70 | |
| twistedwheel | Bringing It All Together | 50 | |
| VeirHannon | Deriving Symmetric Keys | 40 | |
| cepreusa | MDFlag | 125 | |
| VeirHannon | Computing Shared Secrets | 30 | |
| jonnytang | Montgomery Curves | 30 |
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