| Date | User | Challenge | Score |
| Mimi_12 | Salty | 20 | |
| Mimi_12 | Manyprime | 40 | |
| MonkeyRoot | Efficient Exchange | 50 | |
| rexest | Euler's Totient | 20 | |
| SoonOOv | Modular Square Root | 35 | |
| PatoDoronDad | Diffusion through Permutation | 30 | |
| rexest | Public Keys | 15 | |
| PatoDoronDad | Confusion through Substitution | 25 | |
| Mimi_12 | Monoprime | 30 | |
| Mimi_12 | Factoring | 15 | |
| Mimi_12 | RSA Signatures | 25 | |
| MonkeyRoot | Curves and Logs | 40 | |
| Mimi_12 | RSA Decryption | 20 | |
| PatoDoronDad | Round Keys | 20 | |
| Mimi_12 | Private Keys | 20 | |
| Mimi_12 | Euler's Totient | 20 | |
| rexest | Modular Exponentiation | 10 | |
| Mimi_12 | Public Keys | 15 | |
| PatoDoronDad | Structure of AES | 15 | |
| Mimi_12 | Modular Exponentiation | 10 | |
| PatoDoronDad | Resisting Bruteforce | 10 | |
| Mimi_12 | Bean Counter | 60 | |
| traktor | Resisting Bruteforce | 10 | |
| Mimi_12 | Symmetry | 50 | |
| Mimi_12 | Flipping Cookie | 60 | |
| Mimi_12 | ECB CBC WTF | 55 | |
| Mimi_12 | ECB Oracle | 60 | |
| Mimi_12 | Passwords as Keys | 50 | |
| Mimi_12 | Modes of Operation Starter | 15 | |
| Tsing_summer | RSA Decryption | 20 | |
| Mimi_12 | Bringing It All Together | 50 | |
| SoonOOv | Legendre Symbol | 35 | |
| PatoDoronDad | Keyed Permutations | 5 | |
| Mimi_12 | Diffusion through Permutation | 30 | |
| Mimi_12 | Confusion through Substitution | 25 | |
| Tsing_summer | Private Keys | 20 | |
| Mimi_12 | Round Keys | 20 | |
| Ah_Crypto2 | Successive Powers | 60 | |
| PatoDoronDad | Modular Binomials | 80 | |
| Mimi_12 | Structure of AES | 15 | |
| PatoDoronDad | Adrien's Signs | 80 | |
| rexest | Bean Counter | 60 | |
| Mimi_12 | Resisting Bruteforce | 10 | |
| Mimi_12 | Keyed Permutations | 5 | |
| Tsing_summer | Euler's Totient | 20 | |
| Mimi_12 | Modular Binomials | 80 | |
| Mimi_12 | Adrien's Signs | 80 | |
| Mimi_12 | Chinese Remainder Theorem | 40 | |
| Mimi_12 | Modular Square Root | 35 | |
| Tsing_summer | Public Keys | 15 |
You are now level Current level