| Date | User | Challenge | Score |
| Tdawge | ASCII | 5 | |
| Neutr0nys | Factoring | 15 | |
| SpilledBeans | Null or Never | 100 | |
| VuDuong | Favourite byte | 20 | |
| brembo | Prime and Prejudice | 200 | |
| Neutr0nys | RSA Signatures | 25 | |
| Tdawge | Great Snakes | 3 | |
| flipthedog | Greatest Common Divisor | 15 | |
| Neutr0nys | RSA Decryption | 20 | |
| skiller3478 | Let's Decrypt | 80 | |
| Neutr0nys | Private Keys | 20 | |
| Neutr0nys | Euler's Totient | 20 | |
| Neutr0nys | Public Keys | 15 | |
| Neutr0nys | Modular Exponentiation | 10 | |
| Cancelo | You either know, XOR you don't | 30 | |
| VuDuong | XOR Properties | 15 | |
| sheina906 | Armory | 100 | |
| begbaj | Network Attacks | 5 | |
| cu63 | Flipping Cookie | 60 | |
| begbaj | Great Snakes | 3 | |
| begbaj | Finding Flags | 2 | |
| Nirmala_Shidenur | Monoprime | 30 | |
| step_jo | XOR Properties | 15 | |
| KFFF | Extended GCD | 20 | |
| auriete | Round Keys | 20 | |
| Papalo007 | Working with Fields | 10 | |
| Papalo007 | Modulus Inutilis | 50 | |
| KFFF | Greatest Common Divisor | 15 | |
| Bachi | XOR Starter | 10 | |
| Nirmala_Shidenur | Factoring | 15 | |
| laracesco | Bytes and Big Integers | 10 | |
| Nirmala_Shidenur | RSA Signatures | 25 | |
| EGK | Bytes and Big Integers | 10 | |
| AV | Bytes and Big Integers | 10 | |
| Nirmala_Shidenur | RSA Decryption | 20 | |
| s4nch0 | Hex | 5 | |
| esticats | Collider | 50 | |
| Nirmala_Shidenur | Private Keys | 20 | |
| Nirmala_Shidenur | Euler's Totient | 20 | |
| KFFF | Resisting Bruteforce | 10 | |
| Nirmala_Shidenur | Public Keys | 15 | |
| AV | Base64 | 10 | |
| KFFF | Keyed Permutations | 5 | |
| AV | Hex | 5 | |
| l0rdimperi0 | Collider | 50 | |
| Nirmala_Shidenur | Modular Exponentiation | 10 | |
| greene | XOR Starter | 10 | |
| KFFF | Base64 | 10 | |
| kirollosR | ECB Oracle | 60 | |
| KFFF | Hex | 5 |
You are now level Current level