| Date | User | Challenge | Score |
| confetti244 | Resisting Bruteforce | 10 | |
| HelloHellonewuse | Finding Flags | 2 | |
| confetti244 | Keyed Permutations | 5 | |
| DarthTaxEvader | Finding Flags | 2 | |
| dliang2654 | Greatest Common Divisor | 15 | |
| kidkraken | Lemur XOR | 40 | |
| jo666 | Hex | 5 | |
| Niihil | Great Snakes | 3 | |
| jdgthr | RSA Decryption | 20 | |
| jdgthr | Private Keys | 20 | |
| snowcode | Favourite byte | 20 | |
| jdgthr | Euler's Totient | 20 | |
| jdgthr | Public Keys | 15 | |
| kidkraken | Encoding Challenge | 40 | |
| jdgthr | Modular Exponentiation | 10 | |
| jdgthr | Base64 | 10 | |
| jdgthr | Hex | 5 | |
| jdgthr | ASCII | 5 | |
| jdgthr | Network Attacks | 5 | |
| snowcode | XOR Properties | 15 | |
| sergiomanso | XOR Starter | 10 | |
| snowcode | XOR Starter | 10 | |
| kakobtg | RSA Decryption | 20 | |
| kakobtg | Private Keys | 20 | |
| kakobtg | Euler's Totient | 20 | |
| jdgthr | Great Snakes | 3 | |
| jdgthr | Finding Flags | 2 | |
| snowcode | Bytes and Big Integers | 10 | |
| grazkaa | Jack's Birthday Confusion | 30 | |
| grazkaa | Jack's Birthday Hash | 20 | |
| kakobtg | Public Keys | 15 | |
| kidkraken | Network Attacks | 5 | |
| kakobtg | Modular Exponentiation | 10 | |
| lOkOtOdO | XOR Starter | 10 | |
| TonyNo | Euler's Totient | 20 | |
| dturbo | RSA Signatures | 25 | |
| nevershot13men | Bespoke Padding | 100 | |
| snowcode | Base64 | 10 | |
| Niihil | Finding Flags | 2 | |
| br33z | Hex | 5 | |
| snowcode | Hex | 5 | |
| sergiomanso | Bytes and Big Integers | 10 | |
| snowcode | ASCII | 5 | |
| snowcode | Great Snakes | 3 | |
| kidkraken | You either know, XOR you don't | 30 | |
| snowcode | Finding Flags | 2 | |
| dturbo | RSA Decryption | 20 | |
| kabanchik_07 | ECB Oracle | 60 | |
| nevershot13men | Endless Emails | 150 | |
| youusseeff | Base64 | 10 |
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