| Date | User | Challenge | Score |
| adrianps93 | Modular Square Root | 35 | |
| bashrc | MDFlag | 125 | |
| bashrc | MD0 | 80 | |
| adrianps93 | Legendre Symbol | 35 | |
| bashrc | No Difference | 175 | |
| bashrc | Twin Keys | 100 | |
| Iamhacker | Base64 | 10 | |
| adrianps93 | Quadratic Residues | 25 | |
| adrianps93 | Modular Inverting | 25 | |
| adrianps93 | Modular Arithmetic 2 | 20 | |
| adrianps93 | Modular Arithmetic 1 | 20 | |
| adrianps93 | Extended GCD | 20 | |
| Guzlyach | Bytes and Big Integers | 10 | |
| Iamhacker | Hex | 5 | |
| adrianps93 | Greatest Common Divisor | 15 | |
| adrianps93 | You either know, XOR you don't | 30 | |
| b1b00www | From Private to Public Key LWE | 25 | |
| Iamhacker | ASCII | 5 | |
| Mikbrosim | WOTS Up | 75 | |
| Mikbrosim | WOTS Up 2 | 90 | |
| Fluvfy | You either know, XOR you don't | 30 | |
| adrianps93 | Favourite byte | 20 | |
| Tatev | Point Negation | 10 | |
| Iamhacker | Great Snakes | 3 | |
| Mikbrosim | Merkle Trees | 25 | |
| Amro_Hussein | Passwords as Keys | 50 | |
| AradCoh | ZKP Introduction | 5 | |
| pjmgc | Efficient Exchange | 50 | |
| adrianps93 | XOR Properties | 15 | |
| pranjalp847 | XOR Starter | 10 | |
| marianatrench | Great Snakes | 3 | |
| marianatrench | Finding Flags | 2 | |
| pjmgc | Curves and Logs | 40 | |
| siriusraven | Parameter Injection | 60 | |
| lapa | Legendre Symbol | 35 | |
| Kaillum | Finding Flags | 2 | |
| Ariee | Bytes and Big Integers | 10 | |
| pjmgc | Point Addition | 30 | |
| nikiilsss | Finding Flags | 2 | |
| Amro_Hussein | Modes of Operation Starter | 15 | |
| Ariee | Base64 | 10 | |
| Nimadli | Lemur XOR | 40 | |
| Mikbrosim | Nothing Up My Sleeve | 150 | |
| Fluvfy | Favourite byte | 20 | |
| SSero | Bytes and Big Integers | 10 | |
| SSero | Base64 | 10 | |
| hoang1653 | Flipping Cookie | 60 | |
| turing_yedali | XOR Properties | 15 | |
| Ariee | Hex | 5 | |
| Guzlyach | Base64 | 10 |
You are now level Current level