| Date | User | Challenge | Score |
| Alqotary | ASCII | 5 | |
| MuhaiminHasanein | Sign in Please (HKCERT CTF) | 0 | |
| Joaquin | Smooth Criminal | 60 | |
| Alqotary | Vote for Pedro | 150 | |
| LACiA | A Twisted Mind | 80 | |
| Meen4 | Roll your Own | 125 | |
| dario2018 | Smooth Criminal | 60 | |
| Alqotary | Let's Decrypt | 80 | |
| TrouthieCryptHk | Background Reading | 5 | |
| kritn | Finding Flags | 2 | |
| Alqotary | Blinding Light | 120 | |
| NetKingJ | Ellipse Curve Cryptography | 125 | |
| NetKingJ | Adrien's Signs | 80 | |
| khanhdc7 | Finding Flags | 2 | |
| Alqotary | Signing Server | 60 | |
| Calli0pe | Background Reading | 5 | |
| NetKingJ | Successive Powers | 60 | |
| NetKingJ | Quadratic Residues | 25 | |
| NetKingJ | Chinese Remainder Theorem | 40 | |
| NetKingJ | Modular Square Root | 35 | |
| NetKingJ | Legendre Symbol | 35 | |
| briw4 | Network Attacks | 5 | |
| Juggalugg | XOR Starter | 10 | |
| Juggalugg | Bytes and Big Integers | 10 | |
| Juggalugg | Base64 | 10 | |
| Alqotary | Null or Never | 100 | |
| ezreith | XOR Starter | 10 | |
| Calli0pe | Resisting Bruteforce | 10 | |
| Alqotary | Bespoke Padding | 100 | |
| Calli0pe | Keyed Permutations | 5 | |
| Gerund | ASCII | 5 | |
| crypticcryptid | Great Snakes | 3 | |
| Alqotary | RSA Backdoor Viability | 175 | |
| Alqotary | Ron was Wrong, Whit is Right | 90 | |
| Alqotary | Fast Primes | 75 | |
| Alqotary | Marin's Secrets | 50 | |
| Alqotary | Infinite Descent | 50 | |
| Alqotary | Endless Emails | 150 | |
| crypticcryptid | Finding Flags | 2 | |
| Alqotary | Everything is Still Big | 100 | |
| Alqotary | Crossed Wires | 100 | |
| Alqotary | Everything is Big | 70 | |
| Alqotary | Modulus Inutilis | 50 | |
| Alqotary | Salty | 20 | |
| Gerund | Great Snakes | 3 | |
| Alqotary | Manyprime | 40 | |
| UIT | Script Kiddie | 70 | |
| john5124 | Curves and Logs | 40 | |
| potetota_chess81 | RSA Decryption | 20 | |
| potetota_chess81 | Private Keys | 20 |
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