| Date | User | Challenge | Score |
| gbell27 | XOR Starter | 10 | |
| irritable_hacker | Network Attacks | 5 | |
| gbell27 | Bytes and Big Integers | 10 | |
| gunditza | You either know, XOR you don't | 30 | |
| emanu | Point Addition | 30 | |
| CyberEX | Base64 | 10 | |
| pin3apple07 | ZKP Introduction | 5 | |
| CyberEX | Hex | 5 | |
| CyberEX | ASCII | 5 | |
| PAWOS | WOTS Up 2 | 90 | |
| CyberEX | Great Snakes | 3 | |
| irritable_hacker | Deriving Symmetric Keys | 40 | |
| entheo97 | Encoding Challenge | 40 | |
| emanu | Point Negation | 10 | |
| G30 | Adrien's Signs | 80 | |
| irritable_hacker | Computing Shared Secrets | 30 | |
| C0nstraintDr0per | Base64 | 10 | |
| gunditza | Favourite byte | 20 | |
| C0nstraintDr0per | Hex | 5 | |
| irritable_hacker | Working with Fields | 10 | |
| irritable_hacker | Modulus Inutilis | 50 | |
| C0nstraintDr0per | ASCII | 5 | |
| bld | Modular Inverting | 25 | |
| archex | Quadratic Residues | 25 | |
| RachaelSarah | Deriving Symmetric Keys | 40 | |
| RachaelSarah | Computing Shared Secrets | 30 | |
| feleciaz | XOR Starter | 10 | |
| RachaelSarah | Computing Public Values | 25 | |
| C0nstraintDr0per | Great Snakes | 3 | |
| bld | Modular Arithmetic 2 | 20 | |
| RachaelSarah | Generators of Groups | 20 | |
| RachaelSarah | Working with Fields | 10 | |
| irritable_hacker | Salty | 20 | |
| C0nstraintDr0per | Finding Flags | 2 | |
| bld | Modular Arithmetic 1 | 20 | |
| RachaelSarah | Modulus Inutilis | 50 | |
| gunditza | XOR Properties | 15 | |
| RachaelSarah | Salty | 20 | |
| dec256 | Resisting Bruteforce | 10 | |
| irritable_hacker | Manyprime | 40 | |
| jskeob | Encoding Challenge | 40 | |
| dec256 | Keyed Permutations | 5 | |
| InTime | Marin's Secrets | 50 | |
| JacobLu3141 | Chinese Remainder Theorem | 40 | |
| gunditza | XOR Starter | 10 | |
| feleciaz | Encoding Challenge | 40 | |
| DBFTBS | WOTS Up | 75 | |
| gbell27 | Base64 | 10 | |
| gbell27 | Hex | 5 | |
| gbell27 | ASCII | 5 |
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