| Date | User | Challenge | Score |
| yousef_farag | Hex | 5 | |
| CosteniucDaniel | Monoprime | 30 | |
| Giovanni2004 | Diffusion through Permutation | 30 | |
| LucileJ | XOR Properties | 15 | |
| george12 | Manyprime | 40 | |
| george12 | Factoring | 15 | |
| CiobanuGabriel | RSA Decryption | 20 | |
| CosteniucDaniel | Manyprime | 40 | |
| IonelaDica | Passwords as Keys | 50 | |
| Cooker | Modular Arithmetic 1 | 20 | |
| george12 | Private Keys | 20 | |
| george12 | Euler's Totient | 20 | |
| george12 | Public Keys | 15 | |
| LucileJ | XOR Starter | 10 | |
| g0os3 | Bringing It All Together | 50 | |
| CosteniucDaniel | Factoring | 15 | |
| CiobanuGabriel | Private Keys | 20 | |
| po6ix | JWT Sessions | 10 | |
| CiobanuGabriel | Euler's Totient | 20 | |
| Cooker | Extended GCD | 20 | |
| po6ix | Token Appreciation | 5 | |
| CiobanuGabriel | Public Keys | 15 | |
| yousef_farag | ASCII | 5 | |
| CiobanuGabriel | Modular Exponentiation | 10 | |
| AlexandruGheo | Diffusion through Permutation | 30 | |
| nmhuei | Modular Arithmetic 1 | 20 | |
| IonelaDica | Modes of Operation Starter | 15 | |
| datasquirel | Legendre Symbol | 35 | |
| CosteniucDaniel | Modular Exponentiation | 10 | |
| SabinaTrufin | Modes of Operation Starter | 15 | |
| wangdi7670 | Base64 | 10 | |
| MelinteAlexandru | XOR Properties | 15 | |
| davide_rebuffo | Modular Binomials | 80 | |
| ouias | Modular Inverting | 25 | |
| george12 | Modular Exponentiation | 10 | |
| LucileJ | Bytes and Big Integers | 10 | |
| LMV | Diffusion through Permutation | 30 | |
| thaggs1066 | Ron was Wrong, Whit is Right | 90 | |
| AlexandruGheo | Confusion through Substitution | 25 | |
| CryptoMaestro | ECB Oracle | 60 | |
| CosteniucDaniel | Bean Counter | 60 | |
| CiobanuGabriel | Bean Counter | 60 | |
| yousef_farag | Great Snakes | 3 | |
| george12 | Bean Counter | 60 | |
| IonelaDica | Bringing It All Together | 50 | |
| AlexandruGheo | Round Keys | 20 | |
| CosteniucDaniel | Symmetry | 50 | |
| thaggs1066 | Everything is Still Big | 100 | |
| CiobanuGabriel | Symmetry | 50 | |
| LucileJ | Base64 | 10 |
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