| Date | User | Challenge | Score |
| ghaditalal | Hex | 5 | |
| mrthekiller | Adrien's Signs | 80 | |
| mrthekiller | Chinese Remainder Theorem | 40 | |
| mrthekiller | Modular Square Root | 35 | |
| nankhanhhh | Find the Lattice | 100 | |
| Linda_JMXS | Factoring | 15 | |
| W_VV | Great Snakes | 3 | |
| ghaditalal | ASCII | 5 | |
| W_VV | Finding Flags | 2 | |
| mrthekiller | Legendre Symbol | 35 | |
| ghaditalal | Great Snakes | 3 | |
| ghaditalal | Finding Flags | 2 | |
| Miguem | RSA Decryption | 20 | |
| Linda_JMXS | RSA Signatures | 25 | |
| USeeUsChillin | ASCII | 5 | |
| nankhanhhh | Gaussian Reduction | 50 | |
| mrthekiller | Quadratic Residues | 25 | |
| mrthekiller | Modular Inverting | 25 | |
| USeeUsChillin | Great Snakes | 3 | |
| mrthekiller | Modular Arithmetic 2 | 20 | |
| Mix | Adrien's Signs | 80 | |
| tigerBoss101 | Oh SNAP | 120 | |
| mrthekiller | Modular Arithmetic 1 | 20 | |
| 0xforfun | Modular Exponentiation | 10 | |
| mrthekiller | Extended GCD | 20 | |
| atosh502 | Encoding Challenge | 40 | |
| silvia9609 | Private Keys | 20 | |
| Anass67 | Background Reading | 5 | |
| tenkay | Greatest Common Divisor | 15 | |
| silvia9609 | Euler's Totient | 20 | |
| silvia9609 | Public Keys | 15 | |
| Miguem | Private Keys | 20 | |
| tenkay | Lemur XOR | 40 | |
| Niklaus | Base64 | 10 | |
| Niklaus | Hex | 5 | |
| USeeUsChillin | Finding Flags | 2 | |
| Niklaus | ASCII | 5 | |
| Niklaus | Great Snakes | 3 | |
| Niklaus | Finding Flags | 2 | |
| Jlizarazon | Euler's Totient | 20 | |
| atosh502 | Bytes and Big Integers | 10 | |
| wmauriciogr | Modular Exponentiation | 10 | |
| xxvcxxvc | Base64 | 10 | |
| Miguem | Euler's Totient | 20 | |
| xxvcxxvc | Hex | 5 | |
| xxvcxxvc | ASCII | 5 | |
| Jlizarazon | Private Keys | 20 | |
| atosh502 | Base64 | 10 | |
| HarryT1211 | XOR Properties | 15 | |
| Anass67 | Passwords as Keys | 50 |
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