| Date | User | Challenge | Score |
| mathical0732 | Point Addition | 30 | |
| Z10UD1 | Structure of AES | 15 | |
| Maram_AYER | Greatest Common Divisor | 15 | |
| sedtx | SSH Keys | 35 | |
| fucla | ECB Oracle | 60 | |
| sedtx | CERTainly not | 30 | |
| sedtx | Privacy-Enhanced Mail? | 25 | |
| sedtx | Lemur XOR | 40 | |
| sedtx | Encoding Challenge | 40 | |
| dasa | XOR Properties | 15 | |
| inessilvaortiz | Finding Flags | 2 | |
| WertherSamsa | Modular Binomials | 80 | |
| Z10UD1 | Resisting Bruteforce | 10 | |
| Z10UD1 | Keyed Permutations | 5 | |
| sedtx | Moving Problems | 150 | |
| sedtx | ProSign 3 | 100 | |
| dasa | XOR Starter | 10 | |
| sedtx | Curveball | 100 | |
| sedtx | Smooth Criminal | 60 | |
| Al3xHK | Favourite byte | 20 | |
| sedtx | Montgomery's Ladder | 40 | |
| sedtx | Efficient Exchange | 50 | |
| sedtx | Curves and Logs | 40 | |
| sedtx | Scalar Multiplication | 35 | |
| sedtx | Point Addition | 30 | |
| sedtx | Point Negation | 10 | |
| sedtx | Background Reading | 5 | |
| punisher1213 | You either know, XOR you don't | 30 | |
| Maram_AYER | You either know, XOR you don't | 30 | |
| punisher1213 | Lemur XOR | 40 | |
| SSero | Hex | 5 | |
| SSero | ASCII | 5 | |
| sedtx | Export-grade | 100 | |
| dasa | Bytes and Big Integers | 10 | |
| sedtx | Parameter Injection | 60 | |
| AlexCID | Lemur XOR | 40 | |
| SSero | Great Snakes | 3 | |
| SSero | Finding Flags | 2 | |
| Victoire | Great Snakes | 3 | |
| sedtx | Deriving Symmetric Keys | 40 | |
| Maram_AYER | Favourite byte | 20 | |
| punisher1213 | Favourite byte | 20 | |
| sedtx | Computing Shared Secrets | 30 | |
| sedtx | Computing Public Values | 25 | |
| sedtx | Generators of Groups | 20 | |
| sedtx | Working with Fields | 10 | |
| dasa | Base64 | 10 | |
| sedtx | Modulus Inutilis | 50 | |
| sedtx | Salty | 20 | |
| sedtx | Manyprime | 40 |
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