| Date | User | Challenge | Score |
| EmmanuelGoldberg | Script Kiddie | 70 | |
| Bagas_Arya | Finding Flags | 2 | |
| Linyx | Modular Square Root | 35 | |
| npctruc | Modular Arithmetic 2 | 20 | |
| npctruc | Modular Arithmetic 1 | 20 | |
| npctruc | Extended GCD | 20 | |
| allenmncube | Finding Flags | 2 | |
| M1D0R1M4 | Extended GCD | 20 | |
| illuminate0221 | Round Keys | 20 | |
| Benji__ | RSA Signatures | 25 | |
| M1D0R1M4 | Greatest Common Divisor | 15 | |
| lgotindev | You either know, XOR you don't | 30 | |
| lgotindev | Favourite byte | 20 | |
| lgotindev | XOR Properties | 15 | |
| nQQb99 | Extended GCD | 20 | |
| hofung614 | Greatest Common Divisor | 15 | |
| Benji__ | RSA Decryption | 20 | |
| Benji__ | Private Keys | 20 | |
| Benji__ | Euler's Totient | 20 | |
| Benji__ | Public Keys | 15 | |
| Benji__ | Modular Exponentiation | 10 | |
| nonamenc | Bytes and Big Integers | 10 | |
| nonamenc | Base64 | 10 | |
| nonamenc | Hex | 5 | |
| nonamenc | ASCII | 5 | |
| M1D0R1M4 | You either know, XOR you don't | 30 | |
| nonamenc | Great Snakes | 3 | |
| EvaMutiarawati | Moving Problems | 150 | |
| nonamenc | Finding Flags | 2 | |
| EvaMutiarawati | ProSign 3 | 100 | |
| EvaMutiarawati | Curveball | 100 | |
| EvaMutiarawati | Smooth Criminal | 60 | |
| EvaMutiarawati | Montgomery's Ladder | 40 | |
| EvaMutiarawati | Efficient Exchange | 50 | |
| EvaMutiarawati | Curves and Logs | 40 | |
| EvaMutiarawati | Scalar Multiplication | 35 | |
| EvaMutiarawati | Point Addition | 30 | |
| EvaMutiarawati | Point Negation | 10 | |
| EvaMutiarawati | Background Reading | 5 | |
| EvaMutiarawati | Export-grade | 100 | |
| EvaMutiarawati | Parameter Injection | 60 | |
| EvaMutiarawati | Deriving Symmetric Keys | 40 | |
| EvaMutiarawati | Computing Shared Secrets | 30 | |
| M1D0R1M4 | Favourite byte | 20 | |
| EvaMutiarawati | Computing Public Values | 25 | |
| EvaMutiarawati | Generators of Groups | 20 | |
| EvaMutiarawati | Working with Fields | 10 | |
| EvaMutiarawati | Modulus Inutilis | 50 | |
| EvaMutiarawati | Salty | 20 | |
| EvaMutiarawati | Manyprime | 40 |
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