| Date | User | Challenge | Score |
| Zira | Diffusion through Permutation | 30 | |
| NekoRolly | Greatest Common Divisor | 15 | |
| n30nx | Nothing Up My Sleeve | 150 | |
| ZiggyNorton | Confusion through Substitution | 25 | |
| Camilaqll | Great Snakes | 3 | |
| THz | RSA Signatures | 25 | |
| n30nx | Decrypting TLS 1.2 | 30 | |
| THz | RSA Decryption | 20 | |
| IgnAto | Greatest Common Divisor | 15 | |
| origabai | Pad Thai | 80 | |
| User444 | Base64 | 10 | |
| User444 | Hex | 5 | |
| THz | Private Keys | 20 | |
| User444 | ASCII | 5 | |
| User444 | Great Snakes | 3 | |
| THz | Public Keys | 15 | |
| jugheaded | Great Snakes | 3 | |
| jugheaded | Finding Flags | 2 | |
| THz | Euler's Totient | 20 | |
| vamc_krishna22 | Modular Inverting | 25 | |
| madelino | Too Honest | 50 | |
| THz | Modular Exponentiation | 10 | |
| vamc_krishna22 | Modular Arithmetic 2 | 20 | |
| n30nx | Saying Hello | 20 | |
| MasterLJ | Greatest Common Divisor | 15 | |
| n30nx | TLS Handshake | 15 | |
| Kubistmi | You either know, XOR you don't | 30 | |
| Mohammedamin | Base64 | 10 | |
| origabai | CTRIME | 70 | |
| konmr | RSA Decryption | 20 | |
| konmr | Private Keys | 20 | |
| PSilva | XOR Properties | 15 | |
| Moze | Favourite byte | 20 | |
| Anass67 | Adrien's Signs | 80 | |
| konmr | Euler's Totient | 20 | |
| jpl8 | JWT Sessions | 10 | |
| mauwyh | Bytes and Big Integers | 10 | |
| konmr | Public Keys | 15 | |
| jpl8 | Token Appreciation | 5 | |
| konmr | Modular Exponentiation | 10 | |
| konmr | Round Keys | 20 | |
| konmr | Bean Counter | 60 | |
| konmr | Symmetry | 50 | |
| konmr | Flipping Cookie | 60 | |
| konmr | ECB CBC WTF | 55 | |
| konmr | ECB Oracle | 60 | |
| konmr | Passwords as Keys | 50 | |
| konmr | Modes of Operation Starter | 15 | |
| konmr | Bringing It All Together | 50 | |
| konmr | Diffusion through Permutation | 30 |
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