| Date | User | Challenge | Score |
| MrStupid | Bytes and Big Integers | 10 | |
| origabai | WOTS Up | 75 | |
| MrStupid | Base64 | 10 | |
| astelor | LWE Intro | 10 | |
| cybertuan | You either know, XOR you don't | 30 | |
| cybertuan | Favourite byte | 20 | |
| cybertuan | XOR Properties | 15 | |
| julif | Extended GCD | 20 | |
| nameerah | Diffusion through Permutation | 30 | |
| cybertuan | XOR Starter | 10 | |
| cybertuan | Bytes and Big Integers | 10 | |
| turing_yedali | Greatest Common Divisor | 15 | |
| MrStupid | Hex | 5 | |
| tacex_ | You either know, XOR you don't | 30 | |
| Zirey | Great Snakes | 3 | |
| Guzlyach | Round Keys | 20 | |
| cybertuan | Base64 | 10 | |
| vamc_krishna22 | Extended GCD | 20 | |
| MrStupid | ASCII | 5 | |
| cybertuan | Hex | 5 | |
| jellyfish_time | Finding Flags | 2 | |
| cybertuan | ASCII | 5 | |
| origabai | Merkle Trees | 25 | |
| MrStupid | Great Snakes | 3 | |
| cybertuan | Great Snakes | 3 | |
| Z4ME | Modular Arithmetic 1 | 20 | |
| MrStupid | Finding Flags | 2 | |
| cybertuan | Finding Flags | 2 | |
| Nrohnt | Structure of AES | 15 | |
| Nrohnt | Resisting Bruteforce | 10 | |
| Z4ME | Extended GCD | 20 | |
| turing_yedali | RSA Decryption | 20 | |
| Kae | RSA Backdoor Viability | 175 | |
| Nrohnt | Keyed Permutations | 5 | |
| thisnello | MD0 | 80 | |
| origabai | MDFlag | 125 | |
| turing_yedali | Private Keys | 20 | |
| turing_yedali | Euler's Totient | 20 | |
| SKotea | Great Snakes | 3 | |
| hanahiennguyen | Curveball | 100 | |
| kurumi_11 | Bean Counter | 60 | |
| PAWOS | Twin Keys | 100 | |
| Bauti | Hex | 5 | |
| 4R60 | Base64 | 10 | |
| turing_yedali | Public Keys | 15 | |
| Halois | Proofs of Knowledge | 20 | |
| SillySquid42 | ASCII | 5 | |
| 4R60 | Hex | 5 | |
| Yuhu05 | Keyed Permutations | 5 | |
| nameerah | Confusion through Substitution | 25 |
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