| Date | User | Challenge | Score |
| ioi_ico | Quadratic Residues | 25 | |
| At0mxploit | Decrypting TLS 1.2 | 30 | |
| harmless | Encoding Challenge | 40 | |
| Abhinav_Manoj | Greatest Common Divisor | 15 | |
| velvet | Bytes and Big Integers | 10 | |
| supasyge | Modular Square Root | 35 | |
| mbyte | Paper Plane | 120 | |
| Sirine | You either know, XOR you don't | 30 | |
| LacMyst | Finding Flags | 2 | |
| FAZer0 | XOR Starter | 10 | |
| nin3 | Bytes and Big Integers | 10 | |
| unclesam007 | Encoding Challenge | 40 | |
| szx | Hex | 5 | |
| At0mxploit | Saying Hello | 20 | |
| FAZer0 | Bytes and Big Integers | 10 | |
| tharakeshwarn | Favourite byte | 20 | |
| FAZer0 | Base64 | 10 | |
| At0mxploit | TLS Handshake | 15 | |
| Papalo007 | Diffusion through Permutation | 30 | |
| pw4ch7re3 | Logon Zero | 80 | |
| szx | ASCII | 5 | |
| FAZer0 | Hex | 5 | |
| FAZer0 | ASCII | 5 | |
| Reqsuent | Bytes and Big Integers | 10 | |
| FAZer0 | Great Snakes | 3 | |
| ltwind_v2 | Too Honest | 50 | |
| FAZer0 | Finding Flags | 2 | |
| toaru_k | Modular Binomials | 80 | |
| nin3 | Base64 | 10 | |
| At0mxploit | Sharks on the Wire | 10 | |
| AruRajaIblis | Diffusion through Permutation | 30 | |
| Reqsuent | Base64 | 10 | |
| Rodel | Quadratic Residues | 25 | |
| szx | Great Snakes | 3 | |
| At0mxploit | Secure Protocols | 5 | |
| nin3 | Hex | 5 | |
| Rodel | Modular Inverting | 25 | |
| tharakeshwarn | XOR Properties | 15 | |
| Rodel | Modular Arithmetic 2 | 20 | |
| szx | Finding Flags | 2 | |
| nin3 | ASCII | 5 | |
| At0mxploit | RSA or HMAC? Part 2 | 100 | |
| candour | Diffusion through Permutation | 30 | |
| ioi_ico | Modular Inverting | 25 | |
| Reqsuent | Hex | 5 | |
| Rodel | Modular Arithmetic 1 | 20 | |
| Ny_aRo | Great Snakes | 3 | |
| akio | Diffusion through Permutation | 30 | |
| Ny_aRo | Finding Flags | 2 | |
| n0ah | Moving Problems | 150 |
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