| Date | User | Challenge | Score |
| StrangerTM | Base64 | 10 | |
| creep3r | Base64 | 10 | |
| ck0d | Favourite byte | 20 | |
| aymane | Resisting Bruteforce | 10 | |
| creep3r | Hex | 5 | |
| ck0d | XOR Properties | 15 | |
| creep3r | ASCII | 5 | |
| StrangerTM | Hex | 5 | |
| StrangerTM | ASCII | 5 | |
| aymane | Keyed Permutations | 5 | |
| Bonolori404 | Signing Server | 60 | |
| coupi | ASCII | 5 | |
| SvJ0049 | Base64 | 10 | |
| ck0d | XOR Starter | 10 | |
| 1tsRyd3r | LWE Background | 5 | |
| SvJ0049 | Hex | 5 | |
| avenger1234 | ASCII | 5 | |
| StrangerTM | Network Attacks | 5 | |
| aymane | Modular Inverting | 25 | |
| avenger1234 | Great Snakes | 3 | |
| aymane | Modular Arithmetic 2 | 20 | |
| avenger1234 | Finding Flags | 2 | |
| ck0d | Bytes and Big Integers | 10 | |
| SvJ0049 | ASCII | 5 | |
| SvJ0049 | Great Snakes | 3 | |
| AmineHDN | Great Snakes | 3 | |
| ck0d | Base64 | 10 | |
| SvJ0049 | Finding Flags | 2 | |
| ck0d | Hex | 5 | |
| ck0d | ASCII | 5 | |
| StrangerTM | Great Snakes | 3 | |
| vishalkammar | Hex | 5 | |
| hecker_ho_ma | Euler's Totient | 20 | |
| amritanshu25 | Computing Public Values | 25 | |
| camisabino | Bytes and Big Integers | 10 | |
| ck0d | Great Snakes | 3 | |
| ck0d | Finding Flags | 2 | |
| coupi | Great Snakes | 3 | |
| hecker_ho_ma | Public Keys | 15 | |
| ggerod | Computing Shared Secrets | 30 | |
| amritanshu25 | Generators of Groups | 20 | |
| andrew_h | You either know, XOR you don't | 30 | |
| StrangerTM | Finding Flags | 2 | |
| khanhtai | Export-grade | 100 | |
| Bonolori404 | No Way Back Home | 100 | |
| hecker_ho_ma | Modular Exponentiation | 10 | |
| amritanshu25 | Working with Fields | 10 | |
| vinlhf | Hex | 5 | |
| camisabino | Base64 | 10 | |
| abdulkhamidsec | Modular Exponentiation | 10 |
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