| Date | User | Challenge | Score |
| Holl0w | Functional (ICC Athens) | 0 | |
| testing1357 | Modular Arithmetic 1 | 20 | |
| IvyMumbua | Curveball | 100 | |
| TrainExpressN42 | Point Negation | 10 | |
| TrainExpressN42 | Background Reading | 5 | |
| testing1357 | Extended GCD | 20 | |
| traktor | Computing Public Values | 25 | |
| Fridintana | Static Client | 100 | |
| mosint_nagant | ASCII | 5 | |
| Z0R0 | Network Attacks | 5 | |
| testing1357 | Greatest Common Divisor | 15 | |
| Ximaz | Greatest Common Divisor | 15 | |
| ellie_m | Base64 | 10 | |
| sct | Lemur XOR | 40 | |
| ellie_m | Hex | 5 | |
| joeboy555 | XOR Starter | 10 | |
| asy | Bytes and Big Integers | 10 | |
| walina052 | Base64 | 10 | |
| sct | You either know, XOR you don't | 30 | |
| IvyMumbua | Smooth Criminal | 60 | |
| IvyMumbua | Montgomery's Ladder | 40 | |
| joeboy555 | Bytes and Big Integers | 10 | |
| IvyMumbua | Efficient Exchange | 50 | |
| IvyMumbua | Curves and Logs | 40 | |
| ellie_m | ASCII | 5 | |
| IvyMumbua | Scalar Multiplication | 35 | |
| IvyMumbua | Point Addition | 30 | |
| IvyMumbua | Point Negation | 10 | |
| lmlA | Greatest Common Divisor | 15 | |
| sct | Favourite byte | 20 | |
| ellie_m | Great Snakes | 3 | |
| sct | XOR Properties | 15 | |
| sct | XOR Starter | 10 | |
| sct | Encoding Challenge | 40 | |
| mosint_nagant | Finding Flags | 2 | |
| mosint_nagant | Great Snakes | 3 | |
| ZackCripto | Base64 | 10 | |
| walina052 | Hex | 5 | |
| you12345 | You either know, XOR you don't | 30 | |
| jooee | You either know, XOR you don't | 30 | |
| TrainExpressN42 | Quadratic Residues | 25 | |
| ZackCripto | Hex | 5 | |
| ZackCripto | ASCII | 5 | |
| TrainExpressN42 | Resisting Bruteforce | 10 | |
| TrainExpressN42 | Keyed Permutations | 5 | |
| ZackCripto | Great Snakes | 3 | |
| TrainExpressN42 | Modular Inverting | 25 | |
| TrainExpressN42 | Modular Arithmetic 2 | 20 | |
| jooee | Favourite byte | 20 | |
| jooee | XOR Properties | 15 |
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