| Date | User | Challenge | Score |
| cryptoLalit | Finding Flags | 2 | |
| tagekl | TLS Handshake | 15 | |
| code_aisac | Greatest Common Divisor | 15 | |
| tagekl | Sharks on the Wire | 10 | |
| varxuwuuu | Modular Inverting | 25 | |
| tagekl | Secure Protocols | 5 | |
| tagekl | Transparency | 50 | |
| geraldnyeo | Modular Inverting | 25 | |
| hysilens_dog | Great Snakes | 3 | |
| bishoy_adel | Hex | 5 | |
| geraldnyeo | Modular Arithmetic 2 | 20 | |
| varxuwuuu | Modular Arithmetic 2 | 20 | |
| andrewk0712 | Modulus Inutilis | 50 | |
| Ussser | Structure of AES | 15 | |
| Gawne | Base64 | 10 | |
| zuytr1nhh | You either know, XOR you don't | 30 | |
| geraldnyeo | Modular Arithmetic 1 | 20 | |
| varxuwuuu | Modular Arithmetic 1 | 20 | |
| Gawne | Hex | 5 | |
| zuytr1nhh | Favourite byte | 20 | |
| zuytr1nhh | XOR Properties | 15 | |
| varxuwuuu | Extended GCD | 20 | |
| checul | Point Negation | 10 | |
| tagekl | Network Attacks | 5 | |
| ducanhhecker | You either know, XOR you don't | 30 | |
| tagekl | Great Snakes | 3 | |
| zuytr1nhh | XOR Starter | 10 | |
| Gawne | ASCII | 5 | |
| checul | Background Reading | 5 | |
| zuytr1nhh | Bytes and Big Integers | 10 | |
| geraldnyeo | Extended GCD | 20 | |
| andrewk0712 | Salty | 20 | |
| zuytr1nhh | Base64 | 10 | |
| Ehyoo1121 | Passwords as Keys | 50 | |
| Aslan_256 | Mixed Up | 120 | |
| zuytr1nhh | Hex | 5 | |
| llllolipop | Hamiltonicity (CryptoHack) | 0 | |
| zuytr1nhh | ASCII | 5 | |
| Gawne | Great Snakes | 3 | |
| zuytr1nhh | Great Snakes | 3 | |
| GingerCarrot | Pairing-Based Cryptography | 50 | |
| zuytr1nhh | Finding Flags | 2 | |
| llllolipop | Hamiltonicity 1 | 100 | |
| Gawne | Finding Flags | 2 | |
| ducanhhecker | Favourite byte | 20 | |
| Ehyoo1121 | Bringing It All Together | 50 | |
| europop02 | RSA Decryption | 20 | |
| MomneNessah | Merkle Trees | 25 | |
| europop02 | Private Keys | 20 | |
| europop02 | Euler's Totient | 20 |
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