| Date | User | Challenge | Score |
| mariya9 | ASCII | 5 | |
| colllijo | Base64 | 10 | |
| wmauriciogr | Public Keys | 15 | |
| justjacob | Public Keys | 15 | |
| Razan | Keyed Permutations | 5 | |
| colllijo | Hex | 5 | |
| colllijo | ASCII | 5 | |
| sandwhales | Structure of AES | 15 | |
| maritime4824 | Modular Arithmetic 1 | 20 | |
| lalaalalllalal | Resisting Bruteforce | 10 | |
| colllijo | Network Attacks | 5 | |
| sulayman | Finding Flags | 2 | |
| lapa | Montgomery's Ladder | 40 | |
| justjacob | Modular Exponentiation | 10 | |
| maritime4824 | Extended GCD | 20 | |
| lalaalalllalal | Keyed Permutations | 5 | |
| lalaalalllalal | Finding Flags | 2 | |
| Vithusha | Finding Flags | 2 | |
| Loredox | RSA Signatures | 25 | |
| mariya9 | Great Snakes | 3 | |
| auraXenon | Bytes and Big Integers | 10 | |
| mariya9 | Finding Flags | 2 | |
| RawanCys | Keyed Permutations | 5 | |
| Chr0niXP41N | Finding Flags | 2 | |
| Loredox | RSA Decryption | 20 | |
| Loredox | Private Keys | 20 | |
| erengokirmak | Quadratic Residues | 25 | |
| sandwhales | Resisting Bruteforce | 10 | |
| crypto_07 | Round Keys | 20 | |
| maritime4824 | You either know, XOR you don't | 30 | |
| KuyangKutai | Favourite byte | 20 | |
| Loredox | Euler's Totient | 20 | |
| flooeg | ECB CBC WTF | 55 | |
| Loredox | Public Keys | 15 | |
| njga1 | Finding Flags | 2 | |
| colllijo | Great Snakes | 3 | |
| colllijo | Finding Flags | 2 | |
| maritime4824 | Favourite byte | 20 | |
| MhmdEbead | ASCII | 5 | |
| sandwhales | Keyed Permutations | 5 | |
| supersnabel | WOTS Up | 75 | |
| sandwhales | Transparency | 50 | |
| anbarbon | CTRIME | 70 | |
| Amro_Hussein | Jack's Birthday Confusion | 30 | |
| xzkkk | ASCII | 5 | |
| YooAlixa | XOR Starter | 10 | |
| DarioLombar_2 | Base64 | 10 | |
| noneedforaname | Hex | 5 | |
| brian_h200_vii | Authentification 1 (Breizh CTF) | 0 | |
| YooAlixa | Bytes and Big Integers | 10 |
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