| Date | User | Challenge | Score |
| TheVigilante | Base64 | 10 | |
| aullya | Point Addition | 30 | |
| aullya | Point Negation | 10 | |
| aullya | Background Reading | 5 | |
| farelekk | Bringing It All Together | 50 | |
| ashey | Great Snakes | 3 | |
| TheVigilante | Hex | 5 | |
| farelekk | Diffusion through Permutation | 30 | |
| adha | RSA Decryption | 20 | |
| farelekk | Confusion through Substitution | 25 | |
| adha | Private Keys | 20 | |
| TheVigilante | ASCII | 5 | |
| adha | Euler's Totient | 20 | |
| TheVigilante | Network Attacks | 5 | |
| Bachatero | Transparency | 50 | |
| adha | Public Keys | 15 | |
| adha | Modular Exponentiation | 10 | |
| aullya | Adrien's Signs | 80 | |
| BlackyCTF | Beatboxer | 150 | |
| aullya | Chinese Remainder Theorem | 40 | |
| farelekk | Round Keys | 20 | |
| aullya | Modular Square Root | 35 | |
| xingchi | Structure of AES | 15 | |
| aullya | Legendre Symbol | 35 | |
| aullya | Quadratic Residues | 25 | |
| farelekk | Structure of AES | 15 | |
| aullya | Bean Counter | 60 | |
| aullya | Symmetry | 50 | |
| aullya | Flipping Cookie | 60 | |
| farelekk | Keyed Permutations | 5 | |
| Bachatero | SSH Keys | 35 | |
| farelekk | Resisting Bruteforce | 10 | |
| aullya | ECB CBC WTF | 55 | |
| ashey | Finding Flags | 2 | |
| BlackyCTF | Logon Zero | 80 | |
| aullya | ECB Oracle | 60 | |
| aullya | Passwords as Keys | 50 | |
| aullya | Modes of Operation Starter | 15 | |
| Bachatero | CERTainly not | 30 | |
| aullya | Bringing It All Together | 50 | |
| aullya | Diffusion through Permutation | 30 | |
| TheVigilante | Great Snakes | 3 | |
| aullya | Confusion through Substitution | 25 | |
| farelekk | Transparency | 50 | |
| aullya | Round Keys | 20 | |
| no4h | Collider | 50 | |
| quadfire | Confusion through Substitution | 25 | |
| aullya | Structure of AES | 15 | |
| TheVigilante | Finding Flags | 2 | |
| aullya | Resisting Bruteforce | 10 |
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