Cryptography
| Challenge Name | Level | Author | Concept |
|---|---|---|---|
| 3,2,1..Go | Easy | ph03n1x | Enigma |
| Ancient Warfare | Easy | ph03n1x | Caeser Cipher |
| Easyncoding | Easy | ph03n1x | Base Encoding |
| Rail Mail | Medium | 4lph4 | Rail Cipher |
| Magic | Medium | ph03n1x | Xor |
| SimpleRSA | Medium | 4lph4 | RSA factorisation |
| SimpleHash | Medium | 4lph4 | Bruteforce Hash |
| XOR | Hard | 4lph4 | XOR |