| Date | User | Challenge | Score |
| Nasirisio | Privacy-Enhanced Mail? | 25 | |
| AdSal7i | Successive Powers | 60 | |
| coxinha2k_ | Hex | 5 | |
| ghadeerfahd | Flipping Cookie | 60 | |
| coxinha2k_ | ASCII | 5 | |
| AdSal7i | Chinese Remainder Theorem | 40 | |
| coxinha2k_ | Great Snakes | 3 | |
| coxinha2k_ | Finding Flags | 2 | |
| AdSal7i | Confusion through Substitution | 25 | |
| 13viathan | Base64 | 10 | |
| AdSal7i | Round Keys | 20 | |
| 13viathan | Hex | 5 | |
| ghadeerfahd | ECB CBC WTF | 55 | |
| lainishere | Great Snakes | 3 | |
| lainishere | Finding Flags | 2 | |
| Blixow | From Private to Public Key LWE | 25 | |
| Shao | Quadratic Residues | 25 | |
| Nasirisio | Modular Inverting | 25 | |
| Nasirisio | Modular Arithmetic 2 | 20 | |
| Nasirisio | Modular Arithmetic 1 | 20 | |
| LACiA | Oracular Spectacular | 150 | |
| R0tt3nt3f | Base64 | 10 | |
| AdSal7i | Structure of AES | 15 | |
| AdSal7i | Resisting Bruteforce | 10 | |
| xX0udaXx | Great Snakes | 3 | |
| AdSal7i | Keyed Permutations | 5 | |
| xX0udaXx | Finding Flags | 2 | |
| Mohammed_obad | ECB Oracle | 60 | |
| R0tt3nt3f | Hex | 5 | |
| 13viathan | ASCII | 5 | |
| 13viathan | Great Snakes | 3 | |
| 13viathan | Finding Flags | 2 | |
| R0tt3nt3f | ASCII | 5 | |
| Nasirisio | Extended GCD | 20 | |
| Mohammed_obad | ECB CBC WTF | 55 | |
| supersecretname | ECB CBC WTF | 55 | |
| Shy_mp3 | XOR Starter | 10 | |
| OrestisL | Modular Binomials | 80 | |
| R0tt3nt3f | Great Snakes | 3 | |
| R0tt3nt3f | Finding Flags | 2 | |
| Mohammed_obad | Passwords as Keys | 50 | |
| Shao | Modular Inverting | 25 | |
| H_TECH | Finding Flags | 2 | |
| tzlil | Exceptional Curves | 100 | |
| Ghadeer154 | The Good, The Pad, The Ugly | 100 | |
| Mohammed_obad | ASCII | 5 | |
| cbr4l0k | Gaussian Reduction | 50 | |
| y4mm1 | From Private to Public Key LWE | 25 | |
| Shao | Modular Arithmetic 2 | 20 | |
| Abstract | Bringing It All Together | 50 |
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