| Date | User | Challenge | Score |
| Alinaylin | Favourite byte | 20 | |
| salimbobo | Finding Flags | 2 | |
| C15C01337_lite | Modulus Inutilis | 50 | |
| hiziki | ASCII | 5 | |
| JanithW | Bytes and Big Integers | 10 | |
| wy0 | RSA Decryption | 20 | |
| testingworldfull | Base64 | 10 | |
| Na7l | Hex | 5 | |
| testingworldfull | Hex | 5 | |
| hiziki | Great Snakes | 3 | |
| Na7l | ASCII | 5 | |
| C15C01337_lite | Salty | 20 | |
| Na7l | Great Snakes | 3 | |
| AkaiKitsune_2107 | Successive Powers | 60 | |
| wy0 | Private Keys | 20 | |
| hiziki | Finding Flags | 2 | |
| testingworldfull | ASCII | 5 | |
| testingworldfull | Great Snakes | 3 | |
| Na7l | Finding Flags | 2 | |
| testingworldfull | Finding Flags | 2 | |
| wy0 | Euler's Totient | 20 | |
| wy0 | Public Keys | 15 | |
| pocketclown | Bytes and Big Integers | 10 | |
| wy0 | Modular Exponentiation | 10 | |
| AkaiKitsune_2107 | Chinese Remainder Theorem | 40 | |
| Tlacaele1 | Modular Arithmetic 1 | 20 | |
| Cosmos2911 | Bytes and Big Integers | 10 | |
| Gengg_ | Square Eyes | 35 | |
| wokwok | Base64 | 10 | |
| Cosmos2911 | Base64 | 10 | |
| Cosmos2911 | Hex | 5 | |
| Cosmos2911 | ASCII | 5 | |
| 1Lovef0xy | Structure of AES | 15 | |
| Chaosdragon789 | Quadratic Residues | 25 | |
| khanhtai | The Matrix Revolutions | 125 | |
| Tactical_Nerd | RSA Decryption | 20 | |
| Tactical_Nerd | Private Keys | 20 | |
| n7h4d | Encoding Challenge | 40 | |
| Tactical_Nerd | Euler's Totient | 20 | |
| Tactical_Nerd | Public Keys | 15 | |
| tackmin1204 | Modular Inverting | 25 | |
| Tactical_Nerd | Modular Exponentiation | 10 | |
| Chaosdragon789 | Modular Inverting | 25 | |
| Gengg_ | Inferius Prime | 30 | |
| n7h4d | Bytes and Big Integers | 10 | |
| n7h4d | Base64 | 10 | |
| n7h4d | Hex | 5 | |
| Chaosdragon789 | Modular Arithmetic 2 | 20 | |
| n7h4d | ASCII | 5 | |
| jurbinaa | Greatest Common Divisor | 15 |
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