| Date | User | Challenge | Score |
| Raffa | Great Snakes | 3 | |
| Rodenacquioben | Modes of Operation Starter | 15 | |
| Ba1sars | Round Keys | 20 | |
| clnkr | Hex | 5 | |
| reutoelboum | Computing Shared Secrets | 30 | |
| Raffa | Finding Flags | 2 | |
| BananaCream | Manyprime | 40 | |
| reutoelboum | Computing Public Values | 25 | |
| brembo | Triple DES | 60 | |
| brembo | Lazy CBC | 60 | |
| MVE | Finding Flags | 2 | |
| brembo | Bean Counter | 60 | |
| Ba1sars | Structure of AES | 15 | |
| brembo | Symmetry | 50 | |
| brembo | Flipping Cookie | 60 | |
| DavidTruong | Real Eisenstein | 150 | |
| brembo | ECB CBC WTF | 55 | |
| brembo | ECB Oracle | 60 | |
| marcofireball84 | Parameter Injection | 60 | |
| brembo | Passwords as Keys | 50 | |
| b4n3 | You either know, XOR you don't | 30 | |
| tup01ris | SSH Keys | 35 | |
| clnkr | ASCII | 5 | |
| brembo | Modes of Operation Starter | 15 | |
| brembo | Bringing It All Together | 50 | |
| marcofireball84 | Deriving Symmetric Keys | 40 | |
| clnkr | Great Snakes | 3 | |
| tup01ris | CERTainly not | 30 | |
| brembo | Diffusion through Permutation | 30 | |
| clnkr | Finding Flags | 2 | |
| brembo | Confusion through Substitution | 25 | |
| brembo | Round Keys | 20 | |
| Rodenacquioben | Bringing It All Together | 50 | |
| a1372321 | Euler's Totient | 20 | |
| marcofireball84 | Computing Shared Secrets | 30 | |
| a1372321 | Modular Exponentiation | 10 | |
| kzzm | Bespoke Padding | 100 | |
| Biswas | Base64 | 10 | |
| arvind_4 | Great Snakes | 3 | |
| tup01ris | Privacy-Enhanced Mail? | 25 | |
| arvind_4 | Finding Flags | 2 | |
| tup01ris | Modular Inverting | 25 | |
| tup01ris | Modular Arithmetic 2 | 20 | |
| tup01ris | Modular Arithmetic 1 | 20 | |
| tup01ris | Extended GCD | 20 | |
| Biswas | Hex | 5 | |
| Biswas | ASCII | 5 | |
| anwar2 | Dancing Queen | 120 | |
| koggy | Saying Hello | 20 | |
| baoan | Missing Modulus | 80 |
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