| Date | User | Challenge | Score |
| 64bitbob | Adrien's Signs | 80 | |
| mercury | Finding Flags | 2 | |
| Jossu | Confusion through Substitution | 25 | |
| xYSx | ASCII | 5 | |
| youssef_reda | Efficient Exchange | 50 | |
| _orlordy | Great Snakes | 3 | |
| Jossu | Round Keys | 20 | |
| _orlordy | Finding Flags | 2 | |
| Relearning_again | Privacy-Enhanced Mail? | 25 | |
| 64bitbob | Chinese Remainder Theorem | 40 | |
| Hexerei | Bytes and Big Integers | 10 | |
| joko | RSA or HMAC? | 35 | |
| moonlit | You either know, XOR you don't | 30 | |
| 64bitbob | Modular Square Root | 35 | |
| purplemak | Finding Flags | 2 | |
| knh6393 | Efficient Exchange | 50 | |
| joko | JWT Secrets | 25 | |
| Pajardo2012Fer | Finding Flags | 2 | |
| Jossu | Structure of AES | 15 | |
| solomondel | Resisting Bruteforce | 10 | |
| solomondel | Keyed Permutations | 5 | |
| knh6393 | Curves and Logs | 40 | |
| solomondel | Modular Binomials | 80 | |
| moonlit | Favourite byte | 20 | |
| knh6393 | Scalar Multiplication | 35 | |
| solomondel | Adrien's Signs | 80 | |
| moonlit | XOR Properties | 15 | |
| solomondel | Chinese Remainder Theorem | 40 | |
| Jossu | Resisting Bruteforce | 10 | |
| moonlit | XOR Starter | 10 | |
| joko | No Way JOSE | 20 | |
| solomondel | Modular Square Root | 35 | |
| moonlit | Bytes and Big Integers | 10 | |
| knh6393 | Point Addition | 30 | |
| moonlit | Base64 | 10 | |
| 64bitbob | XOR Starter | 10 | |
| joko | JWT Sessions | 10 | |
| zsnafu | Confusion through Substitution | 25 | |
| sp1n0z4 | Smooth Criminal | 60 | |
| Jossu | Keyed Permutations | 5 | |
| moonlit | Hex | 5 | |
| joko | Token Appreciation | 5 | |
| moonlit | ASCII | 5 | |
| Anti_ | Modular Square Root | 35 | |
| moonlit | Great Snakes | 3 | |
| moonlit | Finding Flags | 2 | |
| zsnafu | Round Keys | 20 | |
| Jossu | Modular Binomials | 80 | |
| haeriphos | Favourite byte | 20 | |
| RotaJakiro | Export-grade | 100 |
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