| Date | User | Challenge | Score |
| eciid | You either know, XOR you don't | 30 | |
| huli07 | Confusion through Substitution | 25 | |
| ankeet | Favourite byte | 20 | |
| Clowi | Modular Square Root | 35 | |
| jupulians | XOR Starter | 10 | |
| ankeet | XOR Properties | 15 | |
| veexcell | Chinese Remainder Theorem | 40 | |
| AT42110 | Base64 | 10 | |
| veexcell | Modular Square Root | 35 | |
| W1nd5h13ldV1p3r | Modular Inverting | 25 | |
| ankeet | XOR Starter | 10 | |
| ankeet | Bytes and Big Integers | 10 | |
| Alvviinn | Bytes and Big Integers | 10 | |
| AT42110 | Hex | 5 | |
| ankeet | Base64 | 10 | |
| sma11pi9 | Digestive | 60 | |
| AT42110 | ASCII | 5 | |
| ankeet | Hex | 5 | |
| LikKen | Modular Square Root | 35 | |
| DanielG | Hex | 5 | |
| AT42110 | Great Snakes | 3 | |
| ankeet | ASCII | 5 | |
| ankeet | Great Snakes | 3 | |
| AT42110 | Finding Flags | 2 | |
| AmirWayne | XOR Properties | 15 | |
| DanielG | ASCII | 5 | |
| ankeet | Finding Flags | 2 | |
| veexcell | Legendre Symbol | 35 | |
| Meen4 | No Way JOSE | 20 | |
| Jistan | XOR Starter | 10 | |
| cryptoki | Favourite byte | 20 | |
| Hansi | Triple DES | 60 | |
| AmirWayne | XOR Starter | 10 | |
| Jistan | Bytes and Big Integers | 10 | |
| Jistan | Base64 | 10 | |
| snowlight | You either know, XOR you don't | 30 | |
| UsernameTaken1 | Finding Flags | 2 | |
| Jistan | Hex | 5 | |
| Jistan | ASCII | 5 | |
| Jistan | Great Snakes | 3 | |
| mariqnetr | Bytes and Big Integers | 10 | |
| ririelen | You either know, XOR you don't | 30 | |
| Hansi | Lazy CBC | 60 | |
| cryptoki | XOR Properties | 15 | |
| jupulians | Bytes and Big Integers | 10 | |
| sma11pi9 | ProSign 3 | 100 | |
| cryptoki | XOR Starter | 10 | |
| PatrickL_SC | Secure Protocols | 5 | |
| cryptoki | Bytes and Big Integers | 10 | |
| Rimsha1997 | Structure of AES | 15 |
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