| Date | User | Challenge | Score |
| itadori002 | Modes of Operation Starter | 15 | |
| karthikas_08 | Great Snakes | 3 | |
| GoldenGrey | Finding Flags | 2 | |
| adel23 | Structure of AES | 15 | |
| karthikas_08 | Finding Flags | 2 | |
| mricking2048 | Diffusion through Permutation | 30 | |
| jojo2504 | Network Attacks | 5 | |
| jojo2504 | Great Snakes | 3 | |
| jojo2504 | Finding Flags | 2 | |
| itadori002 | Bringing It All Together | 50 | |
| 0xzaika | Great Snakes | 3 | |
| FikriPradana | Factoring | 15 | |
| hce | Quadratic Residues | 25 | |
| FikriPradana | RSA Signatures | 25 | |
| FikriPradana | RSA Decryption | 20 | |
| 0xzaika | Finding Flags | 2 | |
| FikriPradana | Private Keys | 20 | |
| FikriPradana | Euler's Totient | 20 | |
| FikriPradana | Public Keys | 15 | |
| FikriPradana | Modular Exponentiation | 10 | |
| hce | Modular Inverting | 25 | |
| hce | Modular Arithmetic 2 | 20 | |
| hsadhsad | Greatest Common Divisor | 15 | |
| acorrege | Chinese Remainder Theorem | 40 | |
| aakjwndk | Monoprime | 30 | |
| hce | Modular Arithmetic 1 | 20 | |
| kxld | Background Reading | 5 | |
| stupidGoosie | Finding Flags | 2 | |
| ShreyaTrivedi | Greatest Common Divisor | 15 | |
| adel23 | Resisting Bruteforce | 10 | |
| itadori002 | Diffusion through Permutation | 30 | |
| adel23 | Keyed Permutations | 5 | |
| lll111 | Everything is Still Big | 100 | |
| aakjwndk | Factoring | 15 | |
| aakjwndk | RSA Signatures | 25 | |
| itadori002 | Confusion through Substitution | 25 | |
| Ridik | Modular Binomials | 80 | |
| vestia | Base64 | 10 | |
| Blulyk | ASCII | 5 | |
| vestia | Hex | 5 | |
| saimon0811 | Greatest Common Divisor | 15 | |
| lll111 | Square Eyes | 35 | |
| itadori002 | Round Keys | 20 | |
| TheNilan | ASCII | 5 | |
| Blulyk | Great Snakes | 3 | |
| TheNilan | Great Snakes | 3 | |
| D4vone | Greatest Common Divisor | 15 | |
| TheNilan | Finding Flags | 2 | |
| Blulyk | Finding Flags | 2 | |
| F4lk3 | Modular Arithmetic 1 | 20 |
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