| Date | User | Challenge | Score |
| mvsh | ASCII | 5 | |
| P0ynt1ng | Greatest Common Divisor | 15 | |
| qwra | Symmetry | 50 | |
| P0ynt1ng | You either know, XOR you don't | 30 | |
| mvsh | Finding Flags | 2 | |
| nasm | Find the Lattice | 100 | |
| P0ynt1ng | Favourite byte | 20 | |
| ronrikwed | Modular Arithmetic 1 | 20 | |
| P0ynt1ng | XOR Properties | 15 | |
| VictorMugo | Export-grade | 100 | |
| VictorMugo | Parameter Injection | 60 | |
| VictorMugo | Deriving Symmetric Keys | 40 | |
| VictorMugo | Computing Shared Secrets | 30 | |
| VictorMugo | Computing Public Values | 25 | |
| VictorMugo | Generators of Groups | 20 | |
| Cloudown | Modular Arithmetic 2 | 20 | |
| VictorMugo | Working with Fields | 10 | |
| VictorMugo | Modulus Inutilis | 50 | |
| VictorMugo | Salty | 20 | |
| VictorMugo | Manyprime | 40 | |
| VictorMugo | Monoprime | 30 | |
| cyk0sure | Vote for Pedro | 150 | |
| VictorMugo | Factoring | 15 | |
| VictorMugo | RSA Signatures | 25 | |
| VictorMugo | RSA Decryption | 20 | |
| VictorMugo | Private Keys | 20 | |
| VictorMugo | Euler's Totient | 20 | |
| VictorMugo | Public Keys | 15 | |
| VictorMugo | Modular Exponentiation | 10 | |
| corua | Null or Never | 100 | |
| P0ynt1ng | XOR Starter | 10 | |
| P0ynt1ng | Bytes and Big Integers | 10 | |
| TeaQuicky | Passwords as Keys | 50 | |
| abdullah_51 | Confusion through Substitution | 25 | |
| P0ynt1ng | Base64 | 10 | |
| aj1002 | Chinese Remainder Theorem | 40 | |
| DavidTruong | Micro Transmissions | 120 | |
| beow | Hex | 5 | |
| beow | ASCII | 5 | |
| d3v_k1r4 | Modular Arithmetic 1 | 20 | |
| YWzhong | Bytes and Big Integers | 10 | |
| zhaopy | Square Eyes | 35 | |
| Cloudown | Modular Arithmetic 1 | 20 | |
| beow | Finding Flags | 2 | |
| zhaopy | Inferius Prime | 30 | |
| Linda_JMXS | Finding Flags | 2 | |
| Zendex | Finding Flags | 2 | |
| corua | Unencryptable | 125 | |
| FieryBanana101 | Missing Modulus | 80 | |
| Cloudown | Extended GCD | 20 |
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