| Date | User | Challenge | Score |
| wapoy64924 | Montgomery's Ladder | 40 | |
| vizz | ECB Oracle | 60 | |
| Andyisthebestt | Modular Binomials | 80 | |
| GNN | ASCII | 5 | |
| seven11eleven | ASCII | 5 | |
| junjunzi_ | Hex | 5 | |
| polo8005 | MD0 | 80 | |
| seven11eleven | Great Snakes | 3 | |
| vizz | Passwords as Keys | 50 | |
| GNN | Great Snakes | 3 | |
| doquangluccqh | Flipping Cookie | 60 | |
| seven11eleven | Finding Flags | 2 | |
| vizz | Modes of Operation Starter | 15 | |
| vizz | Bringing It All Together | 50 | |
| wapoy64924 | Efficient Exchange | 50 | |
| Nirmala_Shidenur | Modes of Operation Starter | 15 | |
| vizz | Diffusion through Permutation | 30 | |
| cwynx | Modular Arithmetic 1 | 20 | |
| Nirmala_Shidenur | Bringing It All Together | 50 | |
| GNN | Finding Flags | 2 | |
| vizz | Confusion through Substitution | 25 | |
| wapoy64924 | Curves and Logs | 40 | |
| wapoy64924 | Scalar Multiplication | 35 | |
| vizz | Round Keys | 20 | |
| andresfzb | Great Snakes | 3 | |
| wapoy64924 | Point Addition | 30 | |
| crazyroyan | XOR Properties | 15 | |
| alzzz | Modular Binomials | 80 | |
| vizz | Structure of AES | 15 | |
| andresfzb | Finding Flags | 2 | |
| vizz | Resisting Bruteforce | 10 | |
| vizz | Keyed Permutations | 5 | |
| F25 | Decrypting TLS 1.3 | 35 | |
| crazyroyan | XOR Starter | 10 | |
| Asterix22 | ECB Oracle | 60 | |
| thaggs1066 | Let's Decrypt | 80 | |
| crazyroyan | Bytes and Big Integers | 10 | |
| F25 | Decrypting TLS 1.2 | 30 | |
| bertholdus | Modular Binomials | 80 | |
| khanhtai | No Way Back Home | 100 | |
| F25 | Saying Hello | 20 | |
| F25 | TLS Handshake | 15 | |
| F25 | Sharks on the Wire | 10 | |
| Asterix22 | Bean Counter | 60 | |
| F25 | Secure Protocols | 5 | |
| crazyroyan | Base64 | 10 | |
| RotaJakiro | Chinese Remainder Theorem | 40 | |
| comediatron | Bytes and Big Integers | 10 | |
| crazyroyan | Hex | 5 | |
| doquangluccqh | ECB CBC WTF | 55 |
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