| Date | User | Challenge | Score |
| markuche | Passwords as Keys | 50 | |
| CryptoKnight | Private Keys | 20 | |
| f4rhxn | Hex | 5 | |
| markuche | Modes of Operation Starter | 15 | |
| SUPERSUNN | Smooth Criminal | 60 | |
| neilbutcher | Passwords as Keys | 50 | |
| jeroencryptohack | Adrien's Signs | 80 | |
| rpadiou | Round Keys | 20 | |
| CryptoKnight | Euler's Totient | 20 | |
| f4rhxn | ASCII | 5 | |
| Denis_Roc | Passwords as Keys | 50 | |
| mariem750 | Base64 | 10 | |
| f4rhxn | Great Snakes | 3 | |
| harresh40 | Quadratic Residues | 25 | |
| f4rhxn | Finding Flags | 2 | |
| AruRajaIblis | Round Keys | 20 | |
| nadalon | Quadratic Residues | 25 | |
| afrdian | Signing Server | 60 | |
| jeroencryptohack | Chinese Remainder Theorem | 40 | |
| At0mxploit | Curves and Logs | 40 | |
| kilttarily | CERTainly not | 30 | |
| AruRajaIblis | Structure of AES | 15 | |
| Denis_Roc | Modes of Operation Starter | 15 | |
| kilttarily | Privacy-Enhanced Mail? | 25 | |
| kitxt | Bean Counter | 60 | |
| SUPERSUNN | Montgomery's Ladder | 40 | |
| rpadiou | Structure of AES | 15 | |
| 0xwolgrus | ASCII | 5 | |
| At0mxploit | Scalar Multiplication | 35 | |
| gifuzzz | Everything is Still Big | 100 | |
| DavidTruong | Forbidden Fruit | 150 | |
| kilttarily | Modular Inverting | 25 | |
| 0xwolgrus | Great Snakes | 3 | |
| 0xwolgrus | Finding Flags | 2 | |
| jeroencryptohack | Modular Square Root | 35 | |
| kilttarily | Modular Arithmetic 2 | 20 | |
| Dlongree | Hex | 5 | |
| vasyl_crypto | Lemur XOR | 40 | |
| jeroencryptohack | Legendre Symbol | 35 | |
| At0mxploit | Point Addition | 30 | |
| kilttarily | Modular Arithmetic 1 | 20 | |
| Dlongree | ASCII | 5 | |
| BigEskander | XOR Properties | 15 | |
| Dlongree | Great Snakes | 3 | |
| CryptoKnight | Public Keys | 15 | |
| gifuzzz | Crossed Wires | 100 | |
| gnebbia | Hex | 5 | |
| gnebbia | ASCII | 5 | |
| gnebbia | Great Snakes | 3 | |
| gnebbia | Finding Flags | 2 |
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