| Date | User | Challenge | Score |
| mk00001 | Hex | 5 | |
| jianchi998 | Great Snakes | 3 | |
| trustme777 | Base64 | 10 | |
| hbsfjgzyxy | Base64 | 10 | |
| xinpianji | Base64 | 10 | |
| dusiqi2 | Bytes and Big Integers | 10 | |
| lizhi11 | Base64 | 10 | |
| zJQHAHA1 | ASCII | 5 | |
| trustme777 | Hex | 5 | |
| lxznb | Bytes and Big Integers | 10 | |
| 195luobo | Hex | 5 | |
| hbsfjgzyxy | Hex | 5 | |
| kskbl | Base64 | 10 | |
| xinpianji | Hex | 5 | |
| lizhi11 | Hex | 5 | |
| dusiqi2 | Base64 | 10 | |
| trustme777 | ASCII | 5 | |
| jianchi998 | Finding Flags | 2 | |
| zerosfajnk | Hex | 5 | |
| yunseo | Modes of Operation Starter | 15 | |
| Kane | Euler's Totient | 20 | |
| lizhi11 | ASCII | 5 | |
| Kane | Public Keys | 15 | |
| hbsfjgzyxy | ASCII | 5 | |
| xinpianji | ASCII | 5 | |
| Kane | Modular Exponentiation | 10 | |
| LasangKyle | Resisting Bruteforce | 10 | |
| 195luobo | ASCII | 5 | |
| kskbl | Hex | 5 | |
| Siwi | Bytes and Big Integers | 10 | |
| mk00001 | ASCII | 5 | |
| Kane | Bean Counter | 60 | |
| Kane | Symmetry | 50 | |
| Lyca | Diffusion through Permutation | 30 | |
| dusiqi2 | Hex | 5 | |
| lxznb | Base64 | 10 | |
| kskbl | ASCII | 5 | |
| zerosfajnk | ASCII | 5 | |
| Rodenacquioben | Flipping Cookie | 60 | |
| lingshi | Great Snakes | 3 | |
| LasangKyle | Keyed Permutations | 5 | |
| lxznb | Hex | 5 | |
| Lyca | Confusion through Substitution | 25 | |
| 195luobo | Great Snakes | 3 | |
| xbc54188 | Finding Flags | 2 | |
| lizhi11 | Great Snakes | 3 | |
| hbsfjgzyxy | Great Snakes | 3 | |
| trustme777 | Great Snakes | 3 | |
| xinpianji | Great Snakes | 3 | |
| lxznb | ASCII | 5 |
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