| Date | User | Challenge | Score |
| tigerBoss101 | Curves and Logs | 40 | |
| KMA_SiriuS_ | Extended GCD | 20 | |
| m4n059 | Resisting Bruteforce | 10 | |
| porolishinan | Legendre Symbol | 35 | |
| starbinhas | Modular Square Root | 35 | |
| Ret2skillz | ECB CBC WTF | 55 | |
| sivi0115 | ASCII | 5 | |
| tigerBoss101 | Scalar Multiplication | 35 | |
| TinyLean | Triple DES | 60 | |
| sivi0115 | Great Snakes | 3 | |
| stawitcc | Greatest Common Divisor | 15 | |
| sivi0115 | Finding Flags | 2 | |
| gamer_498571 | Greatest Common Divisor | 15 | |
| sveta_shumovai | RSA Backdoor Viability | 175 | |
| OliveCyber | Base64 | 10 | |
| kacihmd | XOR Properties | 15 | |
| dXNlcm5hbWU_ | Transparency | 50 | |
| lcalvie | Bytes and Big Integers | 10 | |
| as11 | Favourite byte | 20 | |
| lcalvie | Base64 | 10 | |
| Galois | OR Proof (CryptoHack) | 0 | |
| m4n059 | Keyed Permutations | 5 | |
| Galois | OR Proof | 75 | |
| officialten | Adrien's Signs | 80 | |
| stawitcc | You either know, XOR you don't | 30 | |
| as11 | XOR Properties | 15 | |
| lcalvie | Hex | 5 | |
| OliveCyber | Hex | 5 | |
| lcalvie | ASCII | 5 | |
| tigerBoss101 | Point Addition | 30 | |
| 1tchyBa11z | Bringing It All Together | 50 | |
| paulanyszta | Lemur XOR | 40 | |
| phasmid | Favourite byte | 20 | |
| paulanyszta | Encoding Challenge | 40 | |
| Northmatrix | Modular Square Root | 35 | |
| phasmid | XOR Properties | 15 | |
| Derte | ASCII | 5 | |
| Galois | Too Honest | 50 | |
| phasmid | XOR Starter | 10 | |
| paulanyszta | You either know, XOR you don't | 30 | |
| paulanyszta | Favourite byte | 20 | |
| paulanyszta | XOR Properties | 15 | |
| neilbutcher | Bytes and Big Integers | 10 | |
| as11 | XOR Starter | 10 | |
| paulanyszta | XOR Starter | 10 | |
| Northmatrix | Network Attacks | 5 | |
| lcalvie | Great Snakes | 3 | |
| lcalvie | Finding Flags | 2 | |
| Derte | Great Snakes | 3 | |
| paulanyszta | Bytes and Big Integers | 10 |
You are now level Current level