| Date | User | Challenge | Score |
| wind | Finding Flags | 2 | |
| foone | Great Snakes | 3 | |
| effindoy | XOR Properties | 15 | |
| mmzjqx | ASCII | 5 | |
| mmzjqx | Great Snakes | 3 | |
| pinhaofan | Great Snakes | 3 | |
| xjs | ASCII | 5 | |
| fsj | Great Snakes | 3 | |
| pinhaofan | Finding Flags | 2 | |
| mmzjqx | Finding Flags | 2 | |
| annmaz | Signing Server | 60 | |
| Akiri | ASCII | 5 | |
| wangzai_nailong | ASCII | 5 | |
| foone | Finding Flags | 2 | |
| xjs | Great Snakes | 3 | |
| rightnite | Favourite byte | 20 | |
| dy | ASCII | 5 | |
| HUANGHEYI | Great Snakes | 3 | |
| wangzai_nailong | Great Snakes | 3 | |
| dy | Great Snakes | 3 | |
| dy | Finding Flags | 2 | |
| rightnite | XOR Properties | 15 | |
| wojtunio19 | Computing Public Values | 25 | |
| annmaz | Let's Decrypt | 80 | |
| fsj | Finding Flags | 2 | |
| wangzai_nailong | Finding Flags | 2 | |
| zebec | Extended GCD | 20 | |
| Akiri | Great Snakes | 3 | |
| HUANGHEYI | Finding Flags | 2 | |
| Hambr | Size and Basis | 15 | |
| wojtunio19 | Generators of Groups | 20 | |
| nurminen | Vote for Pedro | 150 | |
| WissemF1234 | Curveball | 100 | |
| Akiri | Finding Flags | 2 | |
| Hambr | Vectors | 10 | |
| YOU_NESS | Passwords as Keys | 50 | |
| rightnite | XOR Starter | 10 | |
| xjs | Finding Flags | 2 | |
| nurminen | Let's Decrypt Again | 175 | |
| effindoy | XOR Starter | 10 | |
| Mrsh1014 | Manyprime | 40 | |
| Mrsh1014 | Modulus Inutilis | 50 | |
| halliana | RRSSAA (ECSC 2023 (Norway)) | 0 | |
| CryptoG_39916800 | Round Keys | 20 | |
| Mrsh1014 | Salty | 20 | |
| NOXSUB | Bytes and Big Integers | 10 | |
| rightnite | Bytes and Big Integers | 10 | |
| zoe_bzzzz | Favourite byte | 20 | |
| cedm | RSA Decryption | 20 | |
| zebec | Greatest Common Divisor | 15 |
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