| Date | User | Challenge | Score |
| 26521111001 | Authenticated Handshake | 40 | |
| poladddd234 | Hex | 5 | |
| useless | Encoding Challenge | 40 | |
| poladddd234 | ASCII | 5 | |
| 8MQBU1S | ASCII | 5 | |
| abcd0411 | ASCII | 5 | |
| emilnasirovvvv70 | ASCII | 5 | |
| ali20071709 | Bytes and Big Integers | 10 | |
| cqbandakjsdjs | Hex | 5 | |
| sdgvasdfghdsagh | Bytes and Big Integers | 10 | |
| ali20071709 | Base64 | 10 | |
| cqbandakjsdjs | ASCII | 5 | |
| MichaelMbugua | Confusion through Substitution | 25 | |
| sdgvasdfghdsagh | Base64 | 10 | |
| ali20071709 | Hex | 5 | |
| ali20071709 | ASCII | 5 | |
| ILnaRA | Euler's Totient | 20 | |
| sdgvasdfghdsagh | Hex | 5 | |
| sdgvasdfghdsagh | ASCII | 5 | |
| 26521111001 | Decrypting TLS 1.3 | 35 | |
| ILnaRA | Public Keys | 15 | |
| IcyDragony | ASCII | 5 | |
| Technomanicat | Network Attacks | 5 | |
| Technomanicat | Deriving Symmetric Keys | 40 | |
| ILnaRA | Modular Exponentiation | 10 | |
| useless | ZKP Introduction | 5 | |
| cer10ty | Favourite byte | 20 | |
| User_2026 | ASCII | 5 | |
| sgrenz | Bad Temper 2 | 150 | |
| striving | Rhetorical Oracle 2 | 150 | |
| 26521111001 | Decrypting TLS 1.2 | 30 | |
| Technomanicat | Export-grade | 100 | |
| ariel_dev | Finding Flags | 2 | |
| IcyDragony | Great Snakes | 3 | |
| useless | LWE Intro | 10 | |
| GiorMeg | ASCII | 5 | |
| YoYoRap | RSA Signatures | 25 | |
| sea | Long Story Short | 60 | |
| Layf | Favourite byte | 20 | |
| Khadra_Besmala | Hex | 5 | |
| bluesky2113 | Dancing Queen | 120 | |
| Vezeru | XOR Starter | 10 | |
| Abad | Base64 | 10 | |
| 26521111001 | Saying Hello | 20 | |
| Khadra_Besmala | ASCII | 5 | |
| p455w0rd | Base64 | 10 | |
| cauchyfish | Megalomaniac 3 | 120 | |
| 26521111001 | TLS Handshake | 15 | |
| GiorMeg | Great Snakes | 3 | |
| doanhaphong | Logon Zero | 80 |
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