| Date | User | Challenge | Score |
| jianchi998 | XOR Starter | 10 | |
| G1itch7 | Legendre Symbol | 35 | |
| jianchi998 | Bytes and Big Integers | 10 | |
| victorabrams | ASCII | 5 | |
| catblue | Finding Flags | 2 | |
| Gengg_ | Symmetry | 50 | |
| 1Lovef0xy | Favourite byte | 20 | |
| camisabino | Hex | 5 | |
| pemula1 | Deriving Symmetric Keys | 40 | |
| y20064 | Structure of AES | 15 | |
| kskbl | You either know, XOR you don't | 30 | |
| dusiqi2 | Resisting Bruteforce | 10 | |
| 1Lovef0xy | XOR Properties | 15 | |
| 195luobo | Structure of AES | 15 | |
| dusiqi2 | Keyed Permutations | 5 | |
| lizhi11 | Structure of AES | 15 | |
| zJQHAHA1 | You either know, XOR you don't | 30 | |
| lxznb | Resisting Bruteforce | 10 | |
| dusiqi2 | You either know, XOR you don't | 30 | |
| trustme777 | Structure of AES | 15 | |
| hbsfjgzyxy | Structure of AES | 15 | |
| xinpianji | Structure of AES | 15 | |
| y20064 | Resisting Bruteforce | 10 | |
| 1Lovef0xy | XOR Starter | 10 | |
| y20064 | Keyed Permutations | 5 | |
| wael | Finding Flags | 2 | |
| kskbl | Favourite byte | 20 | |
| zJQHAHA1 | Favourite byte | 20 | |
| victorabrams | Great Snakes | 3 | |
| fjukh7872 | Bounded Noise | 50 | |
| lizhi11 | Resisting Bruteforce | 10 | |
| lizhi11 | Keyed Permutations | 5 | |
| lxznb | Structure of AES | 15 | |
| adeueenqw | Great Snakes | 3 | |
| hbsfjgzyxy | Resisting Bruteforce | 10 | |
| xinpianji | Resisting Bruteforce | 10 | |
| 195luobo | Resisting Bruteforce | 10 | |
| 195luobo | Keyed Permutations | 5 | |
| trustme777 | Resisting Bruteforce | 10 | |
| lingshi | Resisting Bruteforce | 10 | |
| lingshi | Keyed Permutations | 5 | |
| hbsfjgzyxy | Keyed Permutations | 5 | |
| trustme777 | Keyed Permutations | 5 | |
| xinpianji | Keyed Permutations | 5 | |
| lxznb | Keyed Permutations | 5 | |
| superoof | Diffusion through Permutation | 30 | |
| camisabino | ASCII | 5 | |
| camisabino | Great Snakes | 3 | |
| camisabino | Finding Flags | 2 | |
| superoof | Confusion through Substitution | 25 |
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