| Date | User | Challenge | Score |
| itsayyan | Adrien's Signs | 80 | |
| Mitchell | ASCII | 5 | |
| willway4444 | Modular Square Root | 35 | |
| 1tsRyd3r | Adrien's Signs | 80 | |
| itsayyan | Successive Powers | 60 | |
| Mitchell | Great Snakes | 3 | |
| HannahVaca | Bytes and Big Integers | 10 | |
| NRTLOX | Transparency | 50 | |
| devan | A Twisted Mind | 80 | |
| eneo | Base64 | 10 | |
| Mitchell | Finding Flags | 2 | |
| SMuhammed | Modular Exponentiation | 10 | |
| itsayyan | Chinese Remainder Theorem | 40 | |
| HannahVaca | Base64 | 10 | |
| cipher_muse777 | Bytes and Big Integers | 10 | |
| NRTLOX | SSH Keys | 35 | |
| itsayyan | Modular Square Root | 35 | |
| babkar | Finding Flags | 2 | |
| itsayyan | Legendre Symbol | 35 | |
| prt_tm_phlsphr | You either know, XOR you don't | 30 | |
| HannahVaca | Hex | 5 | |
| khr519 | Resisting Bruteforce | 10 | |
| itsayyan | Quadratic Residues | 25 | |
| M00rgana | RSA Signatures | 25 | |
| khr519 | Keyed Permutations | 5 | |
| itsayyan | Oh SNAP | 120 | |
| itsayyan | Dancing Queen | 120 | |
| HannahVaca | ASCII | 5 | |
| itsayyan | Stream of Consciousness | 80 | |
| itsayyan | Logon Zero | 80 | |
| itsayyan | CTRIME | 70 | |
| itsayyan | Bean Counter | 60 | |
| itsayyan | Symmetry | 50 | |
| itsayyan | Triple DES | 60 | |
| itsayyan | Lazy CBC | 60 | |
| HannahVaca | Network Attacks | 5 | |
| itsayyan | Flipping Cookie | 60 | |
| itsayyan | ECB Oracle | 60 | |
| itsayyan | ECB CBC WTF | 55 | |
| itsayyan | Passwords as Keys | 50 | |
| itsayyan | Modes of Operation Starter | 15 | |
| itsayyan | Bringing It All Together | 50 | |
| itsayyan | Diffusion through Permutation | 30 | |
| itsayyan | Confusion through Substitution | 25 | |
| itsayyan | Round Keys | 20 | |
| itsayyan | Structure of AES | 15 | |
| itsayyan | Resisting Bruteforce | 10 | |
| itsayyan | Keyed Permutations | 5 | |
| Lndn | XOR Starter | 10 | |
| eneo | Hex | 5 |
You are now level Current level