| Date | User | Challenge | Score |
| maiquocbao | Hex | 5 | |
| maiquocbao | ASCII | 5 | |
| 1502dth | Privacy-Enhanced Mail? | 25 | |
| maiquocbao | Great Snakes | 3 | |
| maiquocbao | Finding Flags | 2 | |
| Ndeya | Finding Flags | 2 | |
| 1502dth | Lemur XOR | 40 | |
| j_wlodarz | The Good, The Pad, The Ugly | 100 | |
| onizuka | Base64 | 10 | |
| onizuka | Hex | 5 | |
| onizuka | ASCII | 5 | |
| onizuka | Great Snakes | 3 | |
| Lucaljken | Resisting Bruteforce | 10 | |
| onizuka | Finding Flags | 2 | |
| minhweaa | Resisting Bruteforce | 10 | |
| kojakiii | Finding Flags | 2 | |
| minhweaa | Keyed Permutations | 5 | |
| jasonitsolutiond | XOR Starter | 10 | |
| siancec | Dancing Queen | 120 | |
| Nurgleplex | Diffusion through Permutation | 30 | |
| Siphedrion | Null or Never | 100 | |
| mfilipcz | ECB Oracle | 60 | |
| nikhilkomandur | XOR Properties | 15 | |
| B00177179 | JWT Secrets | 25 | |
| MaelTbr | Modular Arithmetic 2 | 20 | |
| j_wlodarz | Pad Thai | 80 | |
| YousSphinx | The Matrix | 75 | |
| zer0net | Factoring | 15 | |
| bitazar | Factoring | 15 | |
| superkikoolol | Private Keys | 20 | |
| MaelTbr | Modular Arithmetic 1 | 20 | |
| wlan0mon | Privacy-Enhanced Mail? | 25 | |
| MaelTbr | Extended GCD | 20 | |
| Kospatt | Script Kiddie | 70 | |
| B00177179 | No Way JOSE | 20 | |
| zer0net | Greatest Common Divisor | 15 | |
| MaelTbr | Greatest Common Divisor | 15 | |
| bitazar | RSA Signatures | 25 | |
| bitazar | Private Keys | 20 | |
| bitazar | Euler's Totient | 20 | |
| bitazar | Public Keys | 15 | |
| bitazar | Modular Exponentiation | 10 | |
| bitazar | RSA Decryption | 20 | |
| djaja48 | Finding Flags | 2 | |
| Princelion28 | Finding Flags | 2 | |
| stellev | Sharks on the Wire | 10 | |
| Thanoslaimo | XOR Starter | 10 | |
| Kospatt | Static Client 2 | 120 | |
| this_is_a_trap | Base64 | 10 | |
| alisa | Jack's Birthday Hash | 20 |
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