| Date | User | Challenge | Score |
| anush | Adrien's Signs | 80 | |
| AndreAzu | Passwords as Keys | 50 | |
| potifypremium | XOR Properties | 15 | |
| AndreAzu | Modes of Operation Starter | 15 | |
| h1gkpo | ASCII | 5 | |
| AndreAzu | Bringing It All Together | 50 | |
| Crypto_gram | Gotta Go Fast | 40 | |
| AndreAzu | Diffusion through Permutation | 30 | |
| AndreAzu | Confusion through Substitution | 25 | |
| Fozeton | ASCII | 5 | |
| AndreAzu | Round Keys | 20 | |
| AndreAzu | Structure of AES | 15 | |
| AndreAzu | Resisting Bruteforce | 10 | |
| Fozeton | Great Snakes | 3 | |
| Vanessa_Nevar | Finding Flags | 2 | |
| Fozeton | Finding Flags | 2 | |
| AndreAzu | Export-grade | 100 | |
| tormuzz | Privacy-Enhanced Mail? | 25 | |
| AndreAzu | Parameter Injection | 60 | |
| Muthii | Flipping Cookie | 60 | |
| tormuzz | Modular Inverting | 25 | |
| Rohan_Kapri | Finding Flags | 2 | |
| OlimpikMihmandar | Finding Flags | 2 | |
| Muthii | ECB CBC WTF | 55 | |
| biggerbomber | Triple DES | 60 | |
| AndreAzu | Deriving Symmetric Keys | 40 | |
| AndreAzu | Computing Shared Secrets | 30 | |
| AndreAzu | Computing Public Values | 25 | |
| AndreAzu | Generators of Groups | 20 | |
| AndreAzu | Working with Fields | 10 | |
| AndreAzu | Modulus Inutilis | 50 | |
| biggerbomber | Lazy CBC | 60 | |
| tormuzz | Modular Arithmetic 2 | 20 | |
| AndreAzu | Salty | 20 | |
| tormuzz | Modular Arithmetic 1 | 20 | |
| h1gkpo | Great Snakes | 3 | |
| AndreAzu | Manyprime | 40 | |
| AndreAzu | Monoprime | 30 | |
| l3th4l | Lemur XOR | 40 | |
| tormuzz | Extended GCD | 20 | |
| AndreAzu | Factoring | 15 | |
| AndreAzu | RSA Signatures | 25 | |
| AndreAzu | RSA Decryption | 20 | |
| HIDEN | ASCII | 5 | |
| AndreAzu | Private Keys | 20 | |
| AndreAzu | Euler's Totient | 20 | |
| AndreAzu | Public Keys | 15 | |
| AndreAzu | Modular Exponentiation | 10 | |
| potifypremium | XOR Starter | 10 | |
| Muthii | Passwords as Keys | 50 |
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