| Date | User | Challenge | Score |
| oslash | Deriving Symmetric Keys | 40 | |
| mduffy2 | Scalar Multiplication | 35 | |
| oslash | Computing Shared Secrets | 30 | |
| User0069 | Vote for Pedro | 150 | |
| saro | Beatboxer | 150 | |
| mduffy2 | Point Addition | 30 | |
| kzzm | Bringing It All Together | 50 | |
| veexcell | Hex | 5 | |
| veexcell | ASCII | 5 | |
| mduffy2 | Point Negation | 10 | |
| veexcell | Network Attacks | 5 | |
| oslash | Computing Public Values | 25 | |
| mduffy2 | Background Reading | 5 | |
| mduffy2 | Export-grade | 100 | |
| oslash | Generators of Groups | 20 | |
| 3bdelrazek | Finding Flags | 2 | |
| Dr1o02 | From Private to Public Key LWE | 25 | |
| habi | Quadratic Residues | 25 | |
| Komasan_ | Parameter Injection | 60 | |
| mduffy2 | Parameter Injection | 60 | |
| oslash | Working with Fields | 10 | |
| oslash | Modulus Inutilis | 50 | |
| Dr1o02 | Square Eyes | 35 | |
| Dr1o02 | Inferius Prime | 30 | |
| alice_terui | Finding Flags | 2 | |
| ChrisDelendas | Encoding Challenge | 40 | |
| Sanchir0920 | Jack's Birthday Confusion | 30 | |
| Dayss | Greatest Common Divisor | 15 | |
| SteliosSd | Paper Plane | 120 | |
| ChrisDelendas | Bytes and Big Integers | 10 | |
| ChrisDelendas | Base64 | 10 | |
| Sanchir0920 | Jack's Birthday Hash | 20 | |
| elyessmida | Decrypting TLS 1.2 | 30 | |
| shurayz | Signing Server | 60 | |
| sewulas | RSA or HMAC? Part 2 | 100 | |
| vaioskl | Extended GCD | 20 | |
| sewulas | TLS Handshake | 15 | |
| SteliosSd | Triple DES | 60 | |
| QwQll | Network Attacks | 5 | |
| SteliosSd | Lazy CBC | 60 | |
| SteliosSd | Flipping Cookie | 60 | |
| SpicyPharaoh | Greatest Common Divisor | 15 | |
| SpicyPharaoh | You either know, XOR you don't | 30 | |
| SpicyPharaoh | Favourite byte | 20 | |
| SpicyPharaoh | XOR Properties | 15 | |
| SpicyPharaoh | XOR Starter | 10 | |
| SpicyPharaoh | Encoding Challenge | 40 | |
| sewulas | Sharks on the Wire | 10 | |
| SteliosSd | ECB Oracle | 60 | |
| SteliosSd | ECB CBC WTF | 55 |
You are now level Current level