| Date | User | Challenge | Score |
| C15C01337_lite | Manyprime | 40 | |
| Qaisalhindi | Bytes and Big Integers | 10 | |
| zoi | Finding Flags | 2 | |
| LUFFY07 | ASCII | 5 | |
| marksaviour | XOR Starter | 10 | |
| cubaureo | Great Snakes | 3 | |
| Gondowt | You either know, XOR you don't | 30 | |
| mattloong | XOR Properties | 15 | |
| Arthur35 | You either know, XOR you don't | 30 | |
| fatfow64 | Great Snakes | 3 | |
| mmrm1808 | Bytes and Big Integers | 10 | |
| Qaisalhindi | Base64 | 10 | |
| Arthur35 | Favourite byte | 20 | |
| Arthur35 | XOR Properties | 15 | |
| JasserBkr | Modular Square Root | 35 | |
| sajdaka | Bytes and Big Integers | 10 | |
| Arthur35 | XOR Starter | 10 | |
| fhlsafheof234243 | Bytes and Big Integers | 10 | |
| selen_klblyva | Modes of Operation Starter | 15 | |
| Qaisalhindi | Hex | 5 | |
| fatfow64 | Finding Flags | 2 | |
| ggerod | Parameter Injection | 60 | |
| akimn | XOR Starter | 10 | |
| marksaviour | Bytes and Big Integers | 10 | |
| flower2 | Quadratic Residues | 25 | |
| cubaureo | Finding Flags | 2 | |
| selen_klblyva | Bringing It All Together | 50 | |
| fhlsafheof234243 | Base64 | 10 | |
| mattloong | XOR Starter | 10 | |
| Qaisalhindi | ASCII | 5 | |
| selen_klblyva | Diffusion through Permutation | 30 | |
| selen_klblyva | Confusion through Substitution | 25 | |
| Arthur35 | Bytes and Big Integers | 10 | |
| fhlsafheof234243 | Hex | 5 | |
| fhlsafheof234243 | ASCII | 5 | |
| LUFFY07 | Great Snakes | 3 | |
| C15C01337_lite | Square Eyes | 35 | |
| Qaisalhindi | Great Snakes | 3 | |
| selen_klblyva | Round Keys | 20 | |
| sajdaka | Base64 | 10 | |
| sagebleh | Base64 | 10 | |
| selen_klblyva | Structure of AES | 15 | |
| mmrm1808 | Base64 | 10 | |
| marksaviour | Base64 | 10 | |
| akimn | Bytes and Big Integers | 10 | |
| mattloong | Bytes and Big Integers | 10 | |
| selen_klblyva | Resisting Bruteforce | 10 | |
| sajdaka | Hex | 5 | |
| marksaviour | Hex | 5 | |
| selen_klblyva | Keyed Permutations | 5 |
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