| Date | User | Challenge | Score |
| arindam_046 | Finding Flags | 2 | |
| Zakyboss | Great Snakes | 3 | |
| ENOENT | Seventy-Two | 50 | |
| __mat13__ | Hex | 5 | |
| aiberus | Hex | 5 | |
| kakobtg | Paper Plane | 120 | |
| AbstractArt | Finding Flags | 2 | |
| Sahilkhanna50 | Non-Interactive | 35 | |
| Sahilkhanna50 | ZKP Introduction | 5 | |
| Sahilkhanna50 | Triple DES | 60 | |
| Sahilkhanna50 | Lazy CBC | 60 | |
| Sahilkhanna50 | Flipping Cookie | 60 | |
| Sahilkhanna50 | ECB Oracle | 60 | |
| aiberus | ASCII | 5 | |
| Sahilkhanna50 | ECB CBC WTF | 55 | |
| Sahilkhanna50 | Passwords as Keys | 50 | |
| Sahilkhanna50 | Modes of Operation Starter | 15 | |
| aiberus | Great Snakes | 3 | |
| Zakyboss | Finding Flags | 2 | |
| __mat13__ | ASCII | 5 | |
| nas_shar | You either know, XOR you don't | 30 | |
| aiberus | Finding Flags | 2 | |
| nas_shar | Favourite byte | 20 | |
| GUMAYUSI | Keyed Permutations | 5 | |
| Too | Greatest Common Divisor | 15 | |
| __mat13__ | Network Attacks | 5 | |
| mmihov | Symmetry | 50 | |
| kekko0code | Bytes and Big Integers | 10 | |
| Tadicha | Modular Binomials | 80 | |
| varixius | Structure of AES | 15 | |
| nas_shar | XOR Properties | 15 | |
| Praimus7 | Modular Arithmetic 2 | 20 | |
| __mat13__ | Great Snakes | 3 | |
| cafecafe | No Leaks | 100 | |
| mmihov | Flipping Cookie | 60 | |
| kakobtg | Null or Never | 100 | |
| Sahilkhanna50 | Curveball | 100 | |
| csg | Extended GCD | 20 | |
| Sahilkhanna50 | Exceptional Curves | 100 | |
| Praimus7 | Modular Arithmetic 1 | 20 | |
| Sahilkhanna50 | Smooth Criminal | 60 | |
| Sahilkhanna50 | Efficient Exchange | 50 | |
| Sahilkhanna50 | Curves and Logs | 40 | |
| Sahilkhanna50 | Scalar Multiplication | 35 | |
| RhykerrR | You either know, XOR you don't | 30 | |
| Sahilkhanna50 | Point Addition | 30 | |
| Sahilkhanna50 | Point Negation | 10 | |
| ishakishak0007 | Finding Flags | 2 | |
| Sahilkhanna50 | Background Reading | 5 | |
| Praimus7 | Extended GCD | 20 |
You are now level Current level