| Date | User | Challenge | Score |
| hic_restant | Hex | 5 | |
| Cyber25 | Base64 | 10 | |
| X_Ph4nt0m | Great Snakes | 3 | |
| zfearno | Key recovery (DCTF) | 0 | |
| Tacosdepopeye22 | ASCII | 5 | |
| FERNANKING | RSA Signatures | 25 | |
| zfearno | Key Backup Service 1 (HKCERT CTF) | 0 | |
| fri3m4 | Great Snakes | 3 | |
| FERNANKING | RSA Decryption | 20 | |
| FERNANKING | Private Keys | 20 | |
| zfearno | kaitenzushi (HackTM CTF) | 0 | |
| FERNANKING | Euler's Totient | 20 | |
| kugel | Bringing It All Together | 50 | |
| FERNANKING | Public Keys | 15 | |
| FERNANKING | Modular Exponentiation | 10 | |
| fri3m4 | Finding Flags | 2 | |
| PriyanshuPansari | Modes of Operation Starter | 15 | |
| zfearno | Irish flan (ECSC 2023 (Norway)) | 0 | |
| FERNANKING | Bean Counter | 60 | |
| grfenk | Bringing It All Together | 50 | |
| kratta | Modes of Operation Starter | 15 | |
| lcalvie | Secure Protocols | 5 | |
| Velfix | Adrien's Signs | 80 | |
| Apollo13 | Encoding Challenge | 40 | |
| hic_restant | ASCII | 5 | |
| PriyanshuPansari | Bringing It All Together | 50 | |
| zfearno | import numpy as MT (Zh3r0 CTF V2) | 0 | |
| gennadion | Modular Arithmetic 1 | 20 | |
| X_Ph4nt0m | Finding Flags | 2 | |
| Velfix | Chinese Remainder Theorem | 40 | |
| Velfix | Modular Square Root | 35 | |
| sheerwood | Background Reading | 5 | |
| hic_restant | Great Snakes | 3 | |
| basseytcr | Modular Arithmetic 1 | 20 | |
| Apollo13 | Modular Arithmetic 1 | 20 | |
| basseytcr | Greatest Common Divisor | 15 | |
| hic_restant | Finding Flags | 2 | |
| basseytcr | Favourite byte | 20 | |
| gennadion | Extended GCD | 20 | |
| kratta | Bringing It All Together | 50 | |
| basseytcr | XOR Properties | 15 | |
| alexshonen | Finding Flags | 2 | |
| Ar4sh1G | Lemur XOR | 40 | |
| basseytcr | XOR Starter | 10 | |
| tarakanus10k | Background Reading | 5 | |
| gennadion | Greatest Common Divisor | 15 | |
| basseytcr | Encoding Challenge | 40 | |
| PriyanshuPansari | Diffusion through Permutation | 30 | |
| zfearno | Hide and seek (ECSC 2023 (Norway)) | 0 | |
| ByGouDex | Manyprime | 40 |
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