| Date | User | Challenge | Score |
| 0NaNa0 | Great Snakes | 3 | |
| teck | XOR Starter | 10 | |
| pavlosp | Parameter Injection | 60 | |
| ibadov041 | ECB Oracle | 60 | |
| Mirabela | Resisting Bruteforce | 10 | |
| Mirabela | Keyed Permutations | 5 | |
| aboateng124 | Confusion through Substitution | 25 | |
| Gunay | ECB CBC WTF | 55 | |
| Mirabela | You either know, XOR you don't | 30 | |
| ilkinA | ECB CBC WTF | 55 | |
| Mirabela | Favourite byte | 20 | |
| Mirabela | XOR Properties | 15 | |
| Mirabela | XOR Starter | 10 | |
| Mirabela | Bytes and Big Integers | 10 | |
| Oberon | Montgomery Curves | 30 | |
| Mirabela | Base64 | 10 | |
| Rundex | Base64 | 10 | |
| Mirabela | Hex | 5 | |
| polhan | Export-grade | 100 | |
| 0xMarta | Base64 | 10 | |
| 0NaNa0 | Finding Flags | 2 | |
| Rundex | Hex | 5 | |
| h4z3m | Privacy-Enhanced Mail? | 25 | |
| Rundex | ASCII | 5 | |
| 0xMarta | Hex | 5 | |
| 0xMarta | ASCII | 5 | |
| 25520221 | Salty | 20 | |
| Mirabela | ASCII | 5 | |
| Rundex | Great Snakes | 3 | |
| rahilabbasli | XOR Properties | 15 | |
| Rundex | Finding Flags | 2 | |
| Marvin_42 | Structure of AES | 15 | |
| Mirabela | Great Snakes | 3 | |
| rahilabbasli | XOR Starter | 10 | |
| Mirabela | Finding Flags | 2 | |
| 25520221 | Manyprime | 40 | |
| Beano | Great Snakes | 3 | |
| rahmec | Mixed Up | 120 | |
| Wazaray | XOR Starter | 10 | |
| Beano | Finding Flags | 2 | |
| rahilabbasli | Bytes and Big Integers | 10 | |
| Marvin_42 | Resisting Bruteforce | 10 | |
| h4z3m | Modular Inverting | 25 | |
| SeifAhmed | Bruce Schneier's Password | 100 | |
| SeifAhmed | Armory | 100 | |
| 25520221 | Square Eyes | 35 | |
| Marvin_42 | Keyed Permutations | 5 | |
| SeifAhmed | Bit by Bit | 100 | |
| SeifAhmed | Trust Games | 150 | |
| SeifAhmed | Jeff's LFSR | 150 |
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